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Takase B, Ikeda T, Shimizu W, Abe H, Aiba T, Chinushi M, Koba S, Kusano K, Niwano S, Takahashi N, Takatsuki S, Tanno K, Watanabe E, Yoshioka K, Amino M, Fujino T, Iwasaki YK, Kohno R, Kinoshita T, Kurita Y, Masaki N, Murata H, Shinohara T, Yada H, Yodogawa K, Kimura T, Kurita T, Nogami A, Sumitomo N. JCS/JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia. Circ J 2024; 88:1509-1595. [PMID: 37690816 DOI: 10.1253/circj.cj-22-0827] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Affiliation(s)
| | - Takanori Ikeda
- Department of Cardiovascular Medicine, Toho University Faculty of Medicine
| | - Wataru Shimizu
- Department of Cardiovascular Medicine, Nippon Medical School
| | - Haruhiko Abe
- Department of Heart Rhythm Management, University of Occupational and Environmental Health, Japan
| | - Takeshi Aiba
- Department of Clinical Laboratory Medicine and Genetics, National Cerebral and Cardiovascular Center
| | - Masaomi Chinushi
- School of Health Sciences, Niigata University School of Medicine
| | - Shinji Koba
- Division of Cardiology, Department of Medicine, Showa University School of Medicine
| | - Kengo Kusano
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center
| | - Shinichi Niwano
- Department of Cardiovascular Medicine, Kitasato University School of Medicine
| | - Naohiko Takahashi
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University
| | - Seiji Takatsuki
- Department of Cardiology, Keio University School of Medicine
| | - Kaoru Tanno
- Cardiology Division, Cardiovascular Center, Showa University Koto-Toyosu Hospital
| | - Eiichi Watanabe
- Division of Cardiology, Department of Internal Medicine, Fujita Health University Bantane Hospital
| | | | - Mari Amino
- Department of Cardiology, Tokai University School of Medicine
| | - Tadashi Fujino
- Department of Cardiovascular Medicine, Toho University Faculty of Medicine
| | - Yu-Ki Iwasaki
- Department of Cardiovascular Medicine, Nippon Medical School
| | - Ritsuko Kohno
- Department of Heart Rhythm Management, University of Occupational and Environmental Health, Japan
| | - Toshio Kinoshita
- Department of Cardiovascular Medicine, Toho University Faculty of Medicine
| | - Yasuo Kurita
- Cardiovascular Center, International University of Health and Welfare, Mita Hospital
| | - Nobuyuki Masaki
- Department of Intensive Care Medicine, National Defense Medical College
| | | | - Tetsuji Shinohara
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University
| | - Hirotaka Yada
- Department of Cardiology, International University of Health and Welfare, Mita Hospital
| | - Kenji Yodogawa
- Department of Cardiovascular Medicine, Nippon Medical School
| | - Takeshi Kimura
- Cardiovascular Medicine, Kyoto University Graduate School of Medicine
| | | | - Akihiko Nogami
- Department of Cardiology, Faculty of Medicine, University of Tsukuba
| | - Naokata Sumitomo
- Department of Pediatric Cardiology, Saitama Medical University International Medical Center
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2
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Toritani H, Yoshida K, Hosokawa T, Tanabe Y, Yamamoto Y, Nishiyama H, Kido T, Kawaguchi N, Matsuda M, Nakano S, Miyazaki S, Uetani T, Inaba S, Yamaguchi O, Kido T. The Feasibility of a Model-Based Iterative Reconstruction Technique Tuned for the Myocardium on Myocardial Computed Tomography Late Enhancement. J Comput Assist Tomogr 2024:00004728-990000000-00340. [PMID: 39095055 DOI: 10.1097/rct.0000000000001652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/04/2024]
Abstract
OBJECTIVES This study evaluated the feasibility of a model-based iterative reconstruction technique (MBIR) tuned for the myocardium on myocardial computed tomography late enhancement (CT-LE). METHODS Twenty-eight patients who underwent myocardial CT-LE and late gadolinium enhancement (LGE) magnetic resonance imaging (MRI) within 1 year were retrospectively enrolled. Myocardial CT-LE was performed using a 320-row CT with low tube voltage (80 kVp). Myocardial CT-LE images were scanned 7 min after CT angiography (CTA) without additional contrast medium. All myocardial CT-LE images were reconstructed with hybrid iterative reconstruction (HIR), conventional MBIR (MBIR_cardiac), and new MBIR tuned for the myocardium (MBIR_myo). Qualitative (5-grade scale) scores and quantitative parameters (signal-to-noise ratio [SNR] and contrast-to-noise ratio [CNR]) were assessed as image quality. The sensitivity, specificity, and accuracy of myocardial CT-LE were evaluated at the segment level using an American Heart Association (AHA) 16-segment model, with LGE-MRI as a reference standard. These results were compared among the different CT image reconstructions. RESULTS In 28 patients with 448 segments, 160 segments were diagnosed with positive by LGE-MRI. In the qualitative assessment of myocardial CT-LE, the mean image quality scores were 2.9 ± 1.2 for HIR, 3.0 ± 1.1 for MBIR_cardiac, and 4.0 ± 1.0 for MBIR_myo. MBIR_myo showed a significantly higher score than HIR (P < 0.001) and MBIR_cardiac (P = 0.018). In the quantitative image quality assessment of myocardial CT-LE, the median image SNR was 10.3 (9.1-11.1) for HIR, 10.8 (9.8-12.1) for MBIR_cardiac, and 16.8 (15.7-18.4) for MBIR_myo. The median image CNR was 3.7 (3.0-4.6) for HIR, 3.8 (3.2-5.1) for MBIR_cardiac, and 6.4 (5.0-7.7) for MBIR_myo. MBIR_myo significantly improved the SNR and CNR of CT-LE compared to HIR and MBIR_cardiac (P < 0.001). The sensitivity, specificity, and accuracy for the detection of myocardial CT-LE were 70%, 92%, and 84% for HIR; 71%, 92%, and 85% for MBIR_cardiac; and 84%, 92%, and 89% for MBIR_myo, respectively. MBIR_myo showed significantly higher image quality, sensitivity, and accuracy than the others (P < 0.05). CONCLUSIONS MBIR tuned for myocardium improved image quality and diagnostic performance for myocardial CT-LE assessment.
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Affiliation(s)
| | - Kazuki Yoshida
- Department of Radiology, Ehime University Graduate School of Medicine, Toon City
| | - Takaaki Hosokawa
- Department of Radiology, Ehime University Graduate School of Medicine, Toon City
| | - Yuki Tanabe
- Department of Radiology, Ehime University Graduate School of Medicine, Toon City
| | - Yuta Yamamoto
- Department of Radiology, Saiseikai Matsuyama Hospital, Matsuyama City, Ehime Prefecture
| | - Hikaru Nishiyama
- Department of Radiology, Ehime University Graduate School of Medicine, Toon City
| | - Tomoyuki Kido
- Department of Radiology, Ehime University Graduate School of Medicine, Toon City
| | - Naoto Kawaguchi
- Department of Radiology, Ehime University Graduate School of Medicine, Toon City
| | - Megumi Matsuda
- Department of Radiology, Ehime University Graduate School of Medicine, Toon City
| | - Shota Nakano
- Canon Medical Systems Corporation, Otawara City, Tochigi Prefecture
| | - Shigehiro Miyazaki
- Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Toon City, Ehime Prefecture, Japan
| | - Teruyoshi Uetani
- Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Toon City, Ehime Prefecture, Japan
| | - Shinji Inaba
- Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Toon City, Ehime Prefecture, Japan
| | - Osamu Yamaguchi
- Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Toon City, Ehime Prefecture, Japan
| | - Teruhito Kido
- Department of Radiology, Ehime University Graduate School of Medicine, Toon City
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3
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Takase B, Ikeda T, Shimizu W, Abe H, Aiba T, Chinushi M, Koba S, Kusano K, Niwano S, Takahashi N, Takatsuki S, Tanno K, Watanabe E, Yoshioka K, Amino M, Fujino T, Iwasaki Y, Kohno R, Kinoshita T, Kurita Y, Masaki N, Murata H, Shinohara T, Yada H, Yodogawa K, Kimura T, Kurita T, Nogami A, Sumitomo N. JCS/JHRS 2022 Guideline on Diagnosis and Risk Assessment of Arrhythmia. J Arrhythm 2024; 40:655-752. [PMID: 39139890 PMCID: PMC11317726 DOI: 10.1002/joa3.13052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Accepted: 04/22/2024] [Indexed: 08/15/2024] Open
Affiliation(s)
| | - Takanori Ikeda
- Department of Cardiovascular MedicineToho University Faculty of Medicine
| | - Wataru Shimizu
- Department of Cardiovascular MedicineNippon Medical School
| | - Haruhiko Abe
- Department of Heart Rhythm ManagementUniversity of Occupational and Environmental HealthJapan
| | - Takeshi Aiba
- Department of Clinical Laboratory Medicine and GeneticsNational Cerebral and Cardiovascular Center
| | | | - Shinji Koba
- Division of Cardiology, Department of MedicineShowa University School of Medicine
| | - Kengo Kusano
- Department of Cardiovascular MedicineNational Cerebral and Cardiovascular Center
| | - Shinichi Niwano
- Department of Cardiovascular MedicineKitasato University School of Medicine
| | - Naohiko Takahashi
- Department of Cardiology and Clinical Examination, Faculty of MedicineOita University
| | | | - Kaoru Tanno
- Cardiovascular Center, Cardiology DivisionShowa University Koto‐Toyosu Hospital
| | - Eiichi Watanabe
- Division of Cardiology, Department of Internal MedicineFujita Health University Bantane Hospital
| | | | - Mari Amino
- Department of CardiologyTokai University School of Medicine
| | - Tadashi Fujino
- Department of Cardiovascular MedicineToho University Faculty of Medicine
| | - Yu‐ki Iwasaki
- Department of Cardiovascular MedicineNippon Medical School
| | - Ritsuko Kohno
- Department of Heart Rhythm ManagementUniversity of Occupational and Environmental HealthJapan
| | - Toshio Kinoshita
- Department of Cardiovascular MedicineToho University Faculty of Medicine
| | - Yasuo Kurita
- Cardiovascular Center, Mita HospitalInternational University of Health and Welfare
| | - Nobuyuki Masaki
- Department of Intensive Care MedicineNational Defense Medical College
| | | | - Tetsuji Shinohara
- Department of Cardiology and Clinical Examination, Faculty of MedicineOita University
| | - Hirotaka Yada
- Department of CardiologyInternational University of Health and Welfare Mita Hospital
| | - Kenji Yodogawa
- Department of Cardiovascular MedicineNippon Medical School
| | - Takeshi Kimura
- Cardiovascular MedicineKyoto University Graduate School of Medicine
| | | | - Akihiko Nogami
- Department of Cardiology, Faculty of MedicineUniversity of Tsukuba
| | - Naokata Sumitomo
- Department of Pediatric CardiologySaitama Medical University International Medical Center
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Xu D, Zhang J, Liu B, Fu D, Li J, Fan L. Determination of viable myocardium through delayed enhancement cardiac magnetic resonance imaging combined with 18F-FDG PET myocardial perfusion/metabolic imaging before CABG. Int J Cardiovasc Imaging 2024; 40:887-895. [PMID: 38265540 PMCID: PMC11052819 DOI: 10.1007/s10554-024-03057-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 01/15/2024] [Indexed: 01/25/2024]
Abstract
PURPOSE Study aims to investigate the consistency of delayed enhancement cardiac magnetic resonance imaging (DE-CMR) and 18F-FDG PET myocardial imaging in evaluating myocardial viability before CABG. METHODS The study analyzed data from 100 patients who were examined with DE-CMR, PET imaging, and echocardiography before and after CABG. All subjects were followed up for 6-12 month post- CABG. RESULTS DE-CMR and PET imaging have high consistency (90.1%; Kappa value = 0.71, p < 0.01) in determining myocardial viability. The degree of delayed enhancement was negatively correlated with the improvement in myocardial contractile function in this segment after revascularization (P < 0.001). The ratio of scarred myocardial segments and total DE score was significantly lower in the improvement group than non-improvement group. Multivariate regression identified that hibernating myocardium (OR = 1.229, 95%CI: 1.053-1.433, p = 0.009) was influencing factor of LVEF improvement after CABG. CONCLUSION Both imaging techniques are consistent in evaluating myocardial viability. Detecting the number of hibernating myocardium by PET is also important to predict the left heart function improvement after CABG.
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Affiliation(s)
- Dongsheng Xu
- Department of Radiology, TEDA International Cardiovascular Hospital, Tianjin, 300457, China
- Tianjin Key Laboratory of Molecular Regulation of Cardiovascular Diseases and Translational Medicine, Tianjin, 300457, China
| | - Jiwang Zhang
- Department of Radiology, TEDA International Cardiovascular Hospital, Tianjin, 300457, China
- Tianjin Key Laboratory of Molecular Regulation of Cardiovascular Diseases and Translational Medicine, Tianjin, 300457, China
| | - Bing Liu
- Department of Radiology, TEDA International Cardiovascular Hospital, Tianjin, 300457, China
- Tianjin Key Laboratory of Molecular Regulation of Cardiovascular Diseases and Translational Medicine, Tianjin, 300457, China
| | - Donghai Fu
- Department of Radiology, TEDA International Cardiovascular Hospital, Tianjin, 300457, China
- Tianjin Key Laboratory of Molecular Regulation of Cardiovascular Diseases and Translational Medicine, Tianjin, 300457, China
| | - Jianming Li
- Department of Nuclear Medicine, TEDA International Cardiovascular Hospital, Tianjin, 300457, China
- Tianjin Key Laboratory of Molecular Regulation of Cardiovascular Diseases and Translational Medicine, Tianjin, 300457, China
| | - Lijuan Fan
- Department of Radiology, TEDA International Cardiovascular Hospital, Tianjin, 300457, China.
- Tianjin Key Laboratory of Molecular Regulation of Cardiovascular Diseases and Translational Medicine, Tianjin, 300457, China.
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5
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Gonzales RA, Ibáñez DH, Hann E, Popescu IA, Burrage MK, Lee YP, Altun İ, Weintraub WS, Kwong RY, Kramer CM, Neubauer S, Ferreira VM, Zhang Q, Piechnik SK. Quality control-driven deep ensemble for accountable automated segmentation of cardiac magnetic resonance LGE and VNE images. Front Cardiovasc Med 2023; 10:1213290. [PMID: 37753166 PMCID: PMC10518404 DOI: 10.3389/fcvm.2023.1213290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 08/16/2023] [Indexed: 09/28/2023] Open
Abstract
Background Late gadolinium enhancement (LGE) cardiovascular magnetic resonance (CMR) imaging is the gold standard for non-invasive myocardial tissue characterisation. However, accurate segmentation of the left ventricular (LV) myocardium remains a challenge due to limited training data and lack of quality control. This study addresses these issues by leveraging generative adversarial networks (GAN)-generated virtual native enhancement (VNE) images to expand the training set and incorporating an automated quality control-driven (QCD) framework to improve segmentation reliability. Methods A dataset comprising 4,716 LGE images (from 1,363 patients with hypertrophic cardiomyopathy and myocardial infarction) was used for development. To generate additional clinically validated data, LGE data were augmented with a GAN-based generator to produce VNE images. LV was contoured on these images manually by clinical observers. To create diverse candidate segmentations, the QCD framework involved multiple U-Nets, which were combined using statistical rank filters. The framework predicted the Dice Similarity Coefficient (DSC) for each candidate segmentation, with the highest predicted DSC indicating the most accurate and reliable result. The performance of the QCD ensemble framework was evaluated on both LGE and VNE test datasets (309 LGE/VNE images from 103 patients), assessing segmentation accuracy (DSC) and quality prediction (mean absolute error (MAE) and binary classification accuracy). Results The QCD framework effectively and rapidly segmented the LV myocardium (<1 s per image) on both LGE and VNE images, demonstrating robust performance on both test datasets with similar mean DSC (LGE: 0.845 ± 0.075 ; VNE: 0.845 ± 0.071 ; p = n s ). Incorporating GAN-generated VNE data into the training process consistently led to enhanced performance for both individual models and the overall framework. The quality control mechanism yielded a high performance (MAE = 0.043 , accuracy = 0.951 ) emphasising the accuracy of the quality control-driven strategy in predicting segmentation quality in clinical settings. Overall, no statistical difference (p = n s ) was found when comparing the LGE and VNE test sets across all experiments. Conclusions The QCD ensemble framework, leveraging GAN-generated VNE data and an automated quality control mechanism, significantly improved the accuracy and reliability of LGE segmentation, paving the way for enhanced and accountable diagnostic imaging in routine clinical use.
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Affiliation(s)
- Ricardo A. Gonzales
- Oxford Centre for Clinical Magnetic Resonance Research (OCMR), Division of Cardiovascular Medicine, Radcliffe Department of Medicine, John Radcliffe Hospital, University of Oxford, Oxford, United Kingdom
| | - Daniel H. Ibáñez
- Oxford Centre for Clinical Magnetic Resonance Research (OCMR), Division of Cardiovascular Medicine, Radcliffe Department of Medicine, John Radcliffe Hospital, University of Oxford, Oxford, United Kingdom
- Artificio, Cambridge, MA, United States
| | - Evan Hann
- Oxford Centre for Clinical Magnetic Resonance Research (OCMR), Division of Cardiovascular Medicine, Radcliffe Department of Medicine, John Radcliffe Hospital, University of Oxford, Oxford, United Kingdom
| | - Iulia A. Popescu
- Oxford Centre for Clinical Magnetic Resonance Research (OCMR), Division of Cardiovascular Medicine, Radcliffe Department of Medicine, John Radcliffe Hospital, University of Oxford, Oxford, United Kingdom
| | - Matthew K. Burrage
- Oxford Centre for Clinical Magnetic Resonance Research (OCMR), Division of Cardiovascular Medicine, Radcliffe Department of Medicine, John Radcliffe Hospital, University of Oxford, Oxford, United Kingdom
- Faculty of Medicine, University of Queensland, Brisbane, QLD, Australia
| | - Yung P. Lee
- Oxford Centre for Clinical Magnetic Resonance Research (OCMR), Division of Cardiovascular Medicine, Radcliffe Department of Medicine, John Radcliffe Hospital, University of Oxford, Oxford, United Kingdom
| | - İbrahim Altun
- Oxford Centre for Clinical Magnetic Resonance Research (OCMR), Division of Cardiovascular Medicine, Radcliffe Department of Medicine, John Radcliffe Hospital, University of Oxford, Oxford, United Kingdom
| | - William S. Weintraub
- MedStar Health Research Institute, Georgetown University, Washington, DC, United States
| | - Raymond Y. Kwong
- Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Christopher M. Kramer
- Department of Medicine, University of Virginia Health System, Charlottesville, VA, United States
| | - Stefan Neubauer
- Oxford Centre for Clinical Magnetic Resonance Research (OCMR), Division of Cardiovascular Medicine, Radcliffe Department of Medicine, John Radcliffe Hospital, University of Oxford, Oxford, United Kingdom
| | | | | | - Vanessa M. Ferreira
- Oxford Centre for Clinical Magnetic Resonance Research (OCMR), Division of Cardiovascular Medicine, Radcliffe Department of Medicine, John Radcliffe Hospital, University of Oxford, Oxford, United Kingdom
| | - Qiang Zhang
- Oxford Centre for Clinical Magnetic Resonance Research (OCMR), Division of Cardiovascular Medicine, Radcliffe Department of Medicine, John Radcliffe Hospital, University of Oxford, Oxford, United Kingdom
| | - Stefan K. Piechnik
- Oxford Centre for Clinical Magnetic Resonance Research (OCMR), Division of Cardiovascular Medicine, Radcliffe Department of Medicine, John Radcliffe Hospital, University of Oxford, Oxford, United Kingdom
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6
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Bergamaschi L, Pavon AG, Angeli F, Tuttolomondo D, Belmonte M, Armillotta M, Sansonetti A, Foà A, Paolisso P, Baggiano A, Mushtaq S, De Zan G, Carriero S, Cramer MJ, Teske AJ, Broekhuizen L, van der Bilt I, Muscogiuri G, Sironi S, Leo LA, Gaibazzi N, Lovato L, Pontone G, Pizzi C, Guglielmo M. The Role of Non-Invasive Multimodality Imaging in Chronic Coronary Syndrome: Anatomical and Functional Pathways. Diagnostics (Basel) 2023; 13:2083. [PMID: 37370978 DOI: 10.3390/diagnostics13122083] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 06/10/2023] [Accepted: 06/12/2023] [Indexed: 06/29/2023] Open
Abstract
Coronary artery disease (CAD) is one of the major causes of mortality and morbidity worldwide, with a high socioeconomic impact. Currently, various guidelines and recommendations have been published about chronic coronary syndromes (CCS). According to the recent European Society of Cardiology guidelines on chronic coronary syndrome, a multimodal imaging approach is strongly recommended in the evaluation of patients with suspected CAD. Today, in the current practice, non-invasive imaging methods can assess coronary anatomy through coronary computed tomography angiography (CCTA) and/or inducible myocardial ischemia through functional stress testing (stress echocardiography, cardiac magnetic resonance imaging, single photon emission computed tomography-SPECT, or positron emission tomography-PET). However, recent trials (ISCHEMIA and REVIVED) have cast doubt on the previous conception of the management of patients with CCS, and nowadays it is essential to understand the limitations and strengths of each imaging method and, specifically, when to choose a functional approach focused on the ischemia versus a coronary anatomy-based one. Finally, the concept of a pathophysiology-driven treatment of these patients emerged as an important goal of multimodal imaging, integrating 'anatomical' and 'functional' information. The present review aims to provide an overview of non-invasive imaging modalities for the comprehensive management of CCS patients.
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Affiliation(s)
- Luca Bergamaschi
- Division of Cardiology, Cardiocentro Ticino Institute, Ente Ospedaliero Cantonale, Via Tesserete, 48, 6900 Lugano, Switzerland
| | - Anna Giulia Pavon
- Division of Cardiology, Cardiocentro Ticino Institute, Ente Ospedaliero Cantonale, Via Tesserete, 48, 6900 Lugano, Switzerland
| | - Francesco Angeli
- Cardiology Unit, IRCCS Azienda Ospedaliera-Universitaria di Bologna, 40138 Bologna, Italy
- Department of Medical and Surgical Sciences-DIMEC-Alma Mater Studiorum, University of Bologna, 40138 Bologna, Italy
| | - Domenico Tuttolomondo
- Department of Cardiology, Parma University Hospital, Viale Antonio Gramsci 14, 43126 Parma, Italy
| | - Marta Belmonte
- Cardiovascular Center Aalst, OLV-Clinic, 9300 Aalst, Belgium
- Department of Advanced Biomedical Sciences, University Federico II, 80138 Naples, Italy
| | - Matteo Armillotta
- Cardiology Unit, IRCCS Azienda Ospedaliera-Universitaria di Bologna, 40138 Bologna, Italy
- Department of Medical and Surgical Sciences-DIMEC-Alma Mater Studiorum, University of Bologna, 40138 Bologna, Italy
| | - Angelo Sansonetti
- Cardiology Unit, IRCCS Azienda Ospedaliera-Universitaria di Bologna, 40138 Bologna, Italy
- Department of Medical and Surgical Sciences-DIMEC-Alma Mater Studiorum, University of Bologna, 40138 Bologna, Italy
| | - Alberto Foà
- Cardiology Unit, IRCCS Azienda Ospedaliera-Universitaria di Bologna, 40138 Bologna, Italy
- Department of Medical and Surgical Sciences-DIMEC-Alma Mater Studiorum, University of Bologna, 40138 Bologna, Italy
| | - Pasquale Paolisso
- Department of Advanced Biomedical Sciences, University Federico II, 80138 Naples, Italy
| | - Andrea Baggiano
- Perioperative and Cardiovascular Imaging Department, Centro Cardiologico Monzino IRCCS, 20138 Milan, Italy
- Department of Clinical Sciences and Community Health, University of Milan, 20122 Milan, Italy
| | - Saima Mushtaq
- Perioperative and Cardiovascular Imaging Department, Centro Cardiologico Monzino IRCCS, 20138 Milan, Italy
| | - Giulia De Zan
- Department of Cardiology, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
- Department of Translational Medicine, University of Eastern Piedmont, Maggiore della Carità Hospital, 28100 Novara, Italy
| | - Serena Carriero
- Postgraduate School of Radiodiagnostics, Università degli Studi di Milano, 20122 Milan, Italy
| | - Maarten-Jan Cramer
- Department of Cardiology, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
| | - Arco J Teske
- Department of Cardiology, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
| | - Lysette Broekhuizen
- Department of Cardiology, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
| | - Ivo van der Bilt
- Department of Cardiology, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
- Department of Cardiology, Haga Teaching Hospital, 2545 GM The Hague, The Netherlands
| | - Giuseppe Muscogiuri
- School of Medicine and Surgery, University of Milano-Bicocca, 20126 Milan, Italy
- Department of Radiology, IRCCS Istituto Auxologico Italiano, San Luca Hospital, 20149 Milan, Italy
| | - Sandro Sironi
- School of Medicine and Surgery, University of Milano-Bicocca, 20126 Milan, Italy
- Department of Radiology, ASST Papa Giovanni XXIII Hospital, 24127 Bergamo, Italy
| | - Laura Anna Leo
- Division of Cardiology, Cardiocentro Ticino Institute, Ente Ospedaliero Cantonale, Via Tesserete, 48, 6900 Lugano, Switzerland
| | - Nicola Gaibazzi
- Department of Cardiology, Parma University Hospital, Viale Antonio Gramsci 14, 43126 Parma, Italy
| | - Luigi Lovato
- Department of Radiology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Albertoni 15, 40138 Bologna, Italy
| | - Gianluca Pontone
- Perioperative and Cardiovascular Imaging Department, Centro Cardiologico Monzino IRCCS, 20138 Milan, Italy
| | - Carmine Pizzi
- Cardiology Unit, IRCCS Azienda Ospedaliera-Universitaria di Bologna, 40138 Bologna, Italy
- Department of Medical and Surgical Sciences-DIMEC-Alma Mater Studiorum, University of Bologna, 40138 Bologna, Italy
| | - Marco Guglielmo
- Department of Cardiology, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
- Department of Cardiology, Haga Teaching Hospital, 2545 GM The Hague, The Netherlands
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7
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Pathways for Cardioprotection in Perspective: Focus on Remote Conditioning and Extracellular Vesicles. BIOLOGY 2023; 12:biology12020308. [PMID: 36829584 PMCID: PMC9953525 DOI: 10.3390/biology12020308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 02/08/2023] [Accepted: 02/10/2023] [Indexed: 02/17/2023]
Abstract
Despite the development of cutting-edge treatments, coronary artery disease (CAD) morbidity and mortality rates remain present at high levels. Therefore, new cardioprotective approaches are crucial to improve the health of patients. To date, experimental investigations of acute ischemia-reperfusion injury (IRI) have generally demonstrated the efficacy of local ischemic preconditioning and postconditioning cardioprotection techniques as well as of remote conditioning. However, application in clinical settings is still highly controversial and debated. Currently, remote ischemic conditioning (RIC) seems to be the most promising method for heart repair. Protective factors are released into the bloodstream, and protection can be transferred within and across species. For a long time, the cross-function and cross-transmission mechanisms of cardioprotection were largely unknown. Recently, it has been shown that small, anuclear, bilayered lipid membrane particles, known as extracellular vesicles (EVs), are the drivers of signal transduction in cardiac IRI and RIC. EVs are related to the pathophysiological processes of cardiovascular diseases (CVDs), according to compelling evidence. In this review, we will first review the current state of knowledge on myocardial IRI and cardioprotective strategies explored over the past 37 years. Second, we will briefly discuss the role of EVs in CVD and the most recent improvements on EVs as prognostic biomarkers, diagnostic, and therapeutic agents. We will discuss how EVs can be used as a new drug delivery mechanism and how they can be employed in cardiac treatment, also from a perspective of overcoming the impasse that results from neglecting confounding factors.
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8
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Nummi A, Pätilä T, Mulari S, Lampinen M, Nieminen T, Mäyränpää MI, Vento A, Harjula A, Kankuri E. Epicardial transplantation of autologous atrial appendage micrografts: evaluation of safety and feasibility in pigs after coronary artery occlusion. SCAND CARDIOVASC J 2022; 56:352-360. [PMID: 36002941 DOI: 10.1080/14017431.2022.2111462] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 07/04/2022] [Accepted: 08/05/2022] [Indexed: 06/15/2023]
Abstract
Objectives. Several approaches devised for clinical utilization of cell-based therapies for heart failure often suffer from complex and lengthy preparation stages. Epicardial delivery of autologous atrial appendage micrografts (AAMs) with a clinically used extracellular matrix (ECM) patch provides a straightforward therapy alternative. We evaluated the operative feasibility and the effect of micrografts on the patch-induced epicardial foreign body inflammatory response in a porcine model of myocardial infarction. Design. Right atrial appendages were harvested and mechanically processed into AAMs. The left anterior descending coronary artery was ligated to generate acute infarction. Patches of ECM matrix with or without AAMs were transplanted epicardially onto the infarcted area. Four pigs received the ECM and four received the AAMs patch. Cardiac function was studied by echocardiography both preoperatively and at 3-week follow-up. The primary outcome measures were safety and feasibility of the therapy administration, and the secondary outcome was the inflammatory response to ECM. Results. Neither AAMs nor ECM patch-related complications were detected during the follow-up time. AAMs patch preparation was feasible according to time and safety. Inflammation was greatly reduced in AAMs when compared with ECM patches as measured by the amount of infiltrated inflammatory cells and area of inflammation. Immunohistochemistry demonstrated an increased CD3+ cell density in the AAMs patch infiltrate. Conclusions. Epicardial AAMs transplantation demonstrated safety and clinical feasibility. The use of micrografts significantly inhibited ECM-induced foreign body inflammatory reactivity. Transplantation of AAMs shows good clinical applicability as adjuvant therapy to cardiac surgery and can suppress acute inflammatory reactivity.
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Affiliation(s)
- Annu Nummi
- Heart and Lung Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Tommi Pätilä
- Pediatric Cardiac Surgery, Children's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Severi Mulari
- Heart and Lung Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Milla Lampinen
- Department of Pharmacology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Tuomo Nieminen
- Heart and Lung Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Päijät-Häme Joint Authority for Health and Wellbeing, Lahti, Finland
| | - Mikko I Mäyränpää
- Department of Pathology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Antti Vento
- Heart and Lung Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Ari Harjula
- Heart and Lung Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Esko Kankuri
- Department of Pharmacology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
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9
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Zhang Q, Burrage MK, Shanmuganathan M, Gonzales RA, Lukaschuk E, Thomas KE, Mills R, Leal Pelado J, Nikolaidou C, Popescu IA, Lee YP, Zhang X, Dharmakumar R, Myerson SG, Rider O, Channon KM, Neubauer S, Piechnik SK, Ferreira VM. Artificial Intelligence for Contrast-Free MRI: Scar Assessment in Myocardial Infarction Using Deep Learning-Based Virtual Native Enhancement. Circulation 2022; 146:1492-1503. [PMID: 36124774 PMCID: PMC9662825 DOI: 10.1161/circulationaha.122.060137] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 08/17/2022] [Indexed: 01/24/2023]
Abstract
BACKGROUND Myocardial scars are assessed noninvasively using cardiovascular magnetic resonance late gadolinium enhancement (LGE) as an imaging gold standard. A contrast-free approach would provide many advantages, including a faster and cheaper scan without contrast-associated problems. METHODS Virtual native enhancement (VNE) is a novel technology that can produce virtual LGE-like images without the need for contrast. VNE combines cine imaging and native T1 maps to produce LGE-like images using artificial intelligence. VNE was developed for patients with previous myocardial infarction from 4271 data sets (912 patients); each data set comprises slice position-matched cine, T1 maps, and LGE images. After quality control, 3002 data sets (775 patients) were used for development and 291 data sets (68 patients) for testing. The VNE generator was trained using generative adversarial networks, using 2 adversarial discriminators to improve the image quality. The left ventricle was contoured semiautomatically. Myocardial scar volume was quantified using the full width at half maximum method. Scar transmurality was measured using the centerline chord method and visualized on bull's-eye plots. Lesion quantification by VNE and LGE was compared using linear regression, Pearson correlation (R), and intraclass correlation coefficients. Proof-of-principle histopathologic comparison of VNE in a porcine model of myocardial infarction also was performed. RESULTS VNE provided significantly better image quality than LGE on blinded analysis by 5 independent operators on 291 data sets (all P<0.001). VNE correlated strongly with LGE in quantifying scar size (R, 0.89; intraclass correlation coefficient, 0.94) and transmurality (R, 0.84; intraclass correlation coefficient, 0.90) in 66 patients (277 test data sets). Two cardiovascular magnetic resonance experts reviewed all test image slices and reported an overall accuracy of 84% for VNE in detecting scars when compared with LGE, with specificity of 100% and sensitivity of 77%. VNE also showed excellent visuospatial agreement with histopathology in 2 cases of a porcine model of myocardial infarction. CONCLUSIONS VNE demonstrated high agreement with LGE cardiovascular magnetic resonance for myocardial scar assessment in patients with previous myocardial infarction in visuospatial distribution and lesion quantification with superior image quality. VNE is a potentially transformative artificial intelligence-based technology with promise in reducing scan times and costs, increasing clinical throughput, and improving the accessibility of cardiovascular magnetic resonance in the near future.
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Affiliation(s)
- Qiang Zhang
- Oxford Centre for Clinical Magnetic Resonance Research (Q.Z., M.K.B., M.S., R.A.G., E.L., K.E.T., R.M., J.L.P., C.N., I.A.P., Y.P.L., S.G.M., O.R., S.N., S.K.P., V.M.F.), Radcliffe Department of Medicine, University of Oxford, United Kingdom
- Division of Cardiovascular Medicine (Q.Z., M.K.B., M.S., R.A.G., E.L., K.E.T., R.M., J.L.P., C.N., I.A.P., Y.P.L., S.G.M., O.R., K.M.C., S.N., S.K.P., V.M.F.), Radcliffe Department of Medicine, University of Oxford, United Kingdom
| | - Matthew K. Burrage
- Oxford Centre for Clinical Magnetic Resonance Research (Q.Z., M.K.B., M.S., R.A.G., E.L., K.E.T., R.M., J.L.P., C.N., I.A.P., Y.P.L., S.G.M., O.R., S.N., S.K.P., V.M.F.), Radcliffe Department of Medicine, University of Oxford, United Kingdom
- Division of Cardiovascular Medicine (Q.Z., M.K.B., M.S., R.A.G., E.L., K.E.T., R.M., J.L.P., C.N., I.A.P., Y.P.L., S.G.M., O.R., K.M.C., S.N., S.K.P., V.M.F.), Radcliffe Department of Medicine, University of Oxford, United Kingdom
- Faculty of Medicine, University of Queensland, Brisbane, Australia (M.K.B.)
| | - Mayooran Shanmuganathan
- Oxford Centre for Clinical Magnetic Resonance Research (Q.Z., M.K.B., M.S., R.A.G., E.L., K.E.T., R.M., J.L.P., C.N., I.A.P., Y.P.L., S.G.M., O.R., S.N., S.K.P., V.M.F.), Radcliffe Department of Medicine, University of Oxford, United Kingdom
- Division of Cardiovascular Medicine (Q.Z., M.K.B., M.S., R.A.G., E.L., K.E.T., R.M., J.L.P., C.N., I.A.P., Y.P.L., S.G.M., O.R., K.M.C., S.N., S.K.P., V.M.F.), Radcliffe Department of Medicine, University of Oxford, United Kingdom
| | - Ricardo A. Gonzales
- Oxford Centre for Clinical Magnetic Resonance Research (Q.Z., M.K.B., M.S., R.A.G., E.L., K.E.T., R.M., J.L.P., C.N., I.A.P., Y.P.L., S.G.M., O.R., S.N., S.K.P., V.M.F.), Radcliffe Department of Medicine, University of Oxford, United Kingdom
- Division of Cardiovascular Medicine (Q.Z., M.K.B., M.S., R.A.G., E.L., K.E.T., R.M., J.L.P., C.N., I.A.P., Y.P.L., S.G.M., O.R., K.M.C., S.N., S.K.P., V.M.F.), Radcliffe Department of Medicine, University of Oxford, United Kingdom
| | - Elena Lukaschuk
- Oxford Centre for Clinical Magnetic Resonance Research (Q.Z., M.K.B., M.S., R.A.G., E.L., K.E.T., R.M., J.L.P., C.N., I.A.P., Y.P.L., S.G.M., O.R., S.N., S.K.P., V.M.F.), Radcliffe Department of Medicine, University of Oxford, United Kingdom
- Division of Cardiovascular Medicine (Q.Z., M.K.B., M.S., R.A.G., E.L., K.E.T., R.M., J.L.P., C.N., I.A.P., Y.P.L., S.G.M., O.R., K.M.C., S.N., S.K.P., V.M.F.), Radcliffe Department of Medicine, University of Oxford, United Kingdom
| | - Katharine E. Thomas
- Oxford Centre for Clinical Magnetic Resonance Research (Q.Z., M.K.B., M.S., R.A.G., E.L., K.E.T., R.M., J.L.P., C.N., I.A.P., Y.P.L., S.G.M., O.R., S.N., S.K.P., V.M.F.), Radcliffe Department of Medicine, University of Oxford, United Kingdom
- Division of Cardiovascular Medicine (Q.Z., M.K.B., M.S., R.A.G., E.L., K.E.T., R.M., J.L.P., C.N., I.A.P., Y.P.L., S.G.M., O.R., K.M.C., S.N., S.K.P., V.M.F.), Radcliffe Department of Medicine, University of Oxford, United Kingdom
| | - Rebecca Mills
- Oxford Centre for Clinical Magnetic Resonance Research (Q.Z., M.K.B., M.S., R.A.G., E.L., K.E.T., R.M., J.L.P., C.N., I.A.P., Y.P.L., S.G.M., O.R., S.N., S.K.P., V.M.F.), Radcliffe Department of Medicine, University of Oxford, United Kingdom
- Division of Cardiovascular Medicine (Q.Z., M.K.B., M.S., R.A.G., E.L., K.E.T., R.M., J.L.P., C.N., I.A.P., Y.P.L., S.G.M., O.R., K.M.C., S.N., S.K.P., V.M.F.), Radcliffe Department of Medicine, University of Oxford, United Kingdom
| | - Joana Leal Pelado
- Oxford Centre for Clinical Magnetic Resonance Research (Q.Z., M.K.B., M.S., R.A.G., E.L., K.E.T., R.M., J.L.P., C.N., I.A.P., Y.P.L., S.G.M., O.R., S.N., S.K.P., V.M.F.), Radcliffe Department of Medicine, University of Oxford, United Kingdom
- Division of Cardiovascular Medicine (Q.Z., M.K.B., M.S., R.A.G., E.L., K.E.T., R.M., J.L.P., C.N., I.A.P., Y.P.L., S.G.M., O.R., K.M.C., S.N., S.K.P., V.M.F.), Radcliffe Department of Medicine, University of Oxford, United Kingdom
| | - Chrysovalantou Nikolaidou
- Oxford Centre for Clinical Magnetic Resonance Research (Q.Z., M.K.B., M.S., R.A.G., E.L., K.E.T., R.M., J.L.P., C.N., I.A.P., Y.P.L., S.G.M., O.R., S.N., S.K.P., V.M.F.), Radcliffe Department of Medicine, University of Oxford, United Kingdom
- Division of Cardiovascular Medicine (Q.Z., M.K.B., M.S., R.A.G., E.L., K.E.T., R.M., J.L.P., C.N., I.A.P., Y.P.L., S.G.M., O.R., K.M.C., S.N., S.K.P., V.M.F.), Radcliffe Department of Medicine, University of Oxford, United Kingdom
| | - Iulia A. Popescu
- Oxford Centre for Clinical Magnetic Resonance Research (Q.Z., M.K.B., M.S., R.A.G., E.L., K.E.T., R.M., J.L.P., C.N., I.A.P., Y.P.L., S.G.M., O.R., S.N., S.K.P., V.M.F.), Radcliffe Department of Medicine, University of Oxford, United Kingdom
- Division of Cardiovascular Medicine (Q.Z., M.K.B., M.S., R.A.G., E.L., K.E.T., R.M., J.L.P., C.N., I.A.P., Y.P.L., S.G.M., O.R., K.M.C., S.N., S.K.P., V.M.F.), Radcliffe Department of Medicine, University of Oxford, United Kingdom
| | - Yung P. Lee
- Oxford Centre for Clinical Magnetic Resonance Research (Q.Z., M.K.B., M.S., R.A.G., E.L., K.E.T., R.M., J.L.P., C.N., I.A.P., Y.P.L., S.G.M., O.R., S.N., S.K.P., V.M.F.), Radcliffe Department of Medicine, University of Oxford, United Kingdom
- Division of Cardiovascular Medicine (Q.Z., M.K.B., M.S., R.A.G., E.L., K.E.T., R.M., J.L.P., C.N., I.A.P., Y.P.L., S.G.M., O.R., K.M.C., S.N., S.K.P., V.M.F.), Radcliffe Department of Medicine, University of Oxford, United Kingdom
| | - Xinheng Zhang
- Krannert Cardiovascular Research Center, Indiana School of Medicine/IU Health Cardiovascular Institute, Indianapolis (X.Z., R.D.)
- Department of Bioengineering, University of California in Los Angeles (X.Z.)
| | - Rohan Dharmakumar
- Krannert Cardiovascular Research Center, Indiana School of Medicine/IU Health Cardiovascular Institute, Indianapolis (X.Z., R.D.)
| | - Saul G. Myerson
- Oxford Centre for Clinical Magnetic Resonance Research (Q.Z., M.K.B., M.S., R.A.G., E.L., K.E.T., R.M., J.L.P., C.N., I.A.P., Y.P.L., S.G.M., O.R., S.N., S.K.P., V.M.F.), Radcliffe Department of Medicine, University of Oxford, United Kingdom
- Division of Cardiovascular Medicine (Q.Z., M.K.B., M.S., R.A.G., E.L., K.E.T., R.M., J.L.P., C.N., I.A.P., Y.P.L., S.G.M., O.R., K.M.C., S.N., S.K.P., V.M.F.), Radcliffe Department of Medicine, University of Oxford, United Kingdom
| | - Oliver Rider
- Oxford Centre for Clinical Magnetic Resonance Research (Q.Z., M.K.B., M.S., R.A.G., E.L., K.E.T., R.M., J.L.P., C.N., I.A.P., Y.P.L., S.G.M., O.R., S.N., S.K.P., V.M.F.), Radcliffe Department of Medicine, University of Oxford, United Kingdom
- Division of Cardiovascular Medicine (Q.Z., M.K.B., M.S., R.A.G., E.L., K.E.T., R.M., J.L.P., C.N., I.A.P., Y.P.L., S.G.M., O.R., K.M.C., S.N., S.K.P., V.M.F.), Radcliffe Department of Medicine, University of Oxford, United Kingdom
| | - Keith M. Channon
- Division of Cardiovascular Medicine (Q.Z., M.K.B., M.S., R.A.G., E.L., K.E.T., R.M., J.L.P., C.N., I.A.P., Y.P.L., S.G.M., O.R., K.M.C., S.N., S.K.P., V.M.F.), Radcliffe Department of Medicine, University of Oxford, United Kingdom
| | - Stefan Neubauer
- Oxford Centre for Clinical Magnetic Resonance Research (Q.Z., M.K.B., M.S., R.A.G., E.L., K.E.T., R.M., J.L.P., C.N., I.A.P., Y.P.L., S.G.M., O.R., S.N., S.K.P., V.M.F.), Radcliffe Department of Medicine, University of Oxford, United Kingdom
- Division of Cardiovascular Medicine (Q.Z., M.K.B., M.S., R.A.G., E.L., K.E.T., R.M., J.L.P., C.N., I.A.P., Y.P.L., S.G.M., O.R., K.M.C., S.N., S.K.P., V.M.F.), Radcliffe Department of Medicine, University of Oxford, United Kingdom
| | - Stefan K. Piechnik
- Oxford Centre for Clinical Magnetic Resonance Research (Q.Z., M.K.B., M.S., R.A.G., E.L., K.E.T., R.M., J.L.P., C.N., I.A.P., Y.P.L., S.G.M., O.R., S.N., S.K.P., V.M.F.), Radcliffe Department of Medicine, University of Oxford, United Kingdom
- Division of Cardiovascular Medicine (Q.Z., M.K.B., M.S., R.A.G., E.L., K.E.T., R.M., J.L.P., C.N., I.A.P., Y.P.L., S.G.M., O.R., K.M.C., S.N., S.K.P., V.M.F.), Radcliffe Department of Medicine, University of Oxford, United Kingdom
| | - Vanessa M. Ferreira
- Oxford Centre for Clinical Magnetic Resonance Research (Q.Z., M.K.B., M.S., R.A.G., E.L., K.E.T., R.M., J.L.P., C.N., I.A.P., Y.P.L., S.G.M., O.R., S.N., S.K.P., V.M.F.), Radcliffe Department of Medicine, University of Oxford, United Kingdom
- Division of Cardiovascular Medicine (Q.Z., M.K.B., M.S., R.A.G., E.L., K.E.T., R.M., J.L.P., C.N., I.A.P., Y.P.L., S.G.M., O.R., K.M.C., S.N., S.K.P., V.M.F.), Radcliffe Department of Medicine, University of Oxford, United Kingdom
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10
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Gallinat A, Mendieta G, Vilahur G, Padró T, Badimon L. DJ-1 administration exerts cardioprotection in a mouse model of acute myocardial infarction. Front Pharmacol 2022; 13:1002755. [PMID: 36210822 PMCID: PMC9539284 DOI: 10.3389/fphar.2022.1002755] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 09/09/2022] [Indexed: 01/09/2023] Open
Abstract
Cardiovascular diseases, and particularly acute myocardial infarction (MI), are the most common causes of death worldwide. Infarct size is the major predictor of clinical outcomes in MI. The Parkinson’s disease associated protein, DJ-1 (also known as PARK7), is a multifunctional protein with chaperone, redox sensing and mitochondrial homeostasis activities. Previously, we provided the evidence for a central role of endogenous DJ-1 in the cardioprotection of post-conditioning. In the present study, we tested the hypothesis that systemic administration of recombinant DJ-1 exerts cardioprotective effects in a mouse model of MI and also explored the associated transcriptional response. We report a significant treatment-induced reduction in infarct size, leukocyte infiltration, apoptosis and oxidative stress. Effects potentially mediated by G-protein-coupled receptor signaling and modulation of the immune response. Collectively, our results indicate a protective role for the exogenously administrated DJ-1 upon MI, and provide the first line of evidence for an extracellular activity of DJ-1 regulating cardiac injury in vivo.
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Affiliation(s)
- Alex Gallinat
- Cardiovascular Program-ICCC, IR-Hospital Santa Creu i Sant Pau, IIB-Sant Pau, Barcelona, Spain
- Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Guiomar Mendieta
- Cardiovascular Program-ICCC, IR-Hospital Santa Creu i Sant Pau, IIB-Sant Pau, Barcelona, Spain
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain
| | - Gemma Vilahur
- Cardiovascular Program-ICCC, IR-Hospital Santa Creu i Sant Pau, IIB-Sant Pau, Barcelona, Spain
- CIBERCV-Instituto de Salud Carlos III, Madrid, Spain
| | - Teresa Padró
- Cardiovascular Program-ICCC, IR-Hospital Santa Creu i Sant Pau, IIB-Sant Pau, Barcelona, Spain
- CIBERCV-Instituto de Salud Carlos III, Madrid, Spain
| | - Lina Badimon
- Cardiovascular Program-ICCC, IR-Hospital Santa Creu i Sant Pau, IIB-Sant Pau, Barcelona, Spain
- CIBERCV-Instituto de Salud Carlos III, Madrid, Spain
- Cardiovascular Research Chair, UAB, Barcelona, Spain
- *Correspondence: Lina Badimon,
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11
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Arian F, Amini M, Mostafaei S, Rezaei Kalantari K, Haddadi Avval A, Shahbazi Z, Kasani K, Bitarafan Rajabi A, Chatterjee S, Oveisi M, Shiri I, Zaidi H. Myocardial Function Prediction After Coronary Artery Bypass Grafting Using MRI Radiomic Features and Machine Learning Algorithms. J Digit Imaging 2022; 35:1708-1718. [PMID: 35995896 DOI: 10.1007/s10278-022-00681-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 06/21/2022] [Accepted: 07/12/2022] [Indexed: 01/02/2023] Open
Abstract
The main aim of the present study was to predict myocardial function improvement in cardiac MR (LGE-CMR) images in patients after coronary artery bypass grafting (CABG) using radiomics and machine learning algorithms. Altogether, 43 patients who had visible scars on short-axis LGE-CMR images and were candidates for CABG surgery were selected and enrolled in this study. MR imaging was performed preoperatively using a 1.5-T MRI scanner. All images were segmented by two expert radiologists (in consensus). Prior to extraction of radiomics features, all MR images were resampled to an isotropic voxel size of 1.8 × 1.8 × 1.8 mm3. Subsequently, intensities were quantized to 64 discretized gray levels and a total of 93 features were extracted. The applied algorithms included a smoothly clipped absolute deviation (SCAD)-penalized support vector machine (SVM) and the recursive partitioning (RP) algorithm as a robust classifier for binary classification in this high-dimensional and non-sparse data. All models were validated with repeated fivefold cross-validation and 10,000 bootstrapping resamples. Ten and seven features were selected with SCAD-penalized SVM and RP algorithm, respectively, for CABG responder/non-responder classification. Considering univariate analysis, the GLSZM gray-level non-uniformity-normalized feature achieved the best performance (AUC: 0.62, 95% CI: 0.53-0.76) with SCAD-penalized SVM. Regarding multivariable modeling, SCAD-penalized SVM obtained an AUC of 0.784 (95% CI: 0.64-0.92), whereas the RP algorithm achieved an AUC of 0.654 (95% CI: 0.50-0.82). In conclusion, different radiomics texture features alone or combined in multivariate analysis using machine learning algorithms provide prognostic information regarding myocardial function in patients after CABG.
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Affiliation(s)
- Fatemeh Arian
- Department of Medical Physics, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mehdi Amini
- Division of Nuclear Medicine and Molecular Imaging, Geneva University Hospital, Geneva 4, CH-1211, Switzerland
| | - Shayan Mostafaei
- Division of Clinical Geriatrics, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
| | - Kiara Rezaei Kalantari
- Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Science, Tehran, Iran.,Cardio-Oncology Research Center, Rajaei Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | | | - Zahra Shahbazi
- Department of Biostatistics, School of Health, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Kianosh Kasani
- Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Science, Tehran, Iran
| | - Ahmad Bitarafan Rajabi
- Department of Medical Physics, School of Medicine, Iran University of Medical Sciences, Tehran, Iran. .,Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Science, Tehran, Iran. .,Echocardiography Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran. .,Cardiovascular interventional research center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran.
| | - Saikat Chatterjee
- School of Electrical Engineering and Computer Science, KTH Royal Institute of Technology, Brinellvägen 8, Stockholm, Sweden
| | - Mehrdad Oveisi
- Comprehensive Cancer Centre, School of Cancer & Pharmaceutical Sciences, Faculty of Life Sciences & Medicine, Kings College London, London, UK.,Department of Computer Science, University of British Columbia, Vancouver BC, Canada
| | - Isaac Shiri
- Division of Nuclear Medicine and Molecular Imaging, Geneva University Hospital, Geneva 4, CH-1211, Switzerland.
| | - Habib Zaidi
- Division of Nuclear Medicine and Molecular Imaging, Geneva University Hospital, Geneva 4, CH-1211, Switzerland. .,Geneva University Neurocenter, Geneva University, Geneva, Switzerland. .,Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Groningen, Netherlands. .,Department of Nuclear Medicine, University of Southern Denmark, Odense, Denmark.
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12
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Determination of scar area using native and post-contrast T1 mapping: Agreement with late gadolinium enhancement. Eur J Radiol 2022; 150:110242. [DOI: 10.1016/j.ejrad.2022.110242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 02/28/2022] [Accepted: 03/05/2022] [Indexed: 11/15/2022]
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13
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Holtackers RJ, Emrich T, Botnar RM, Kooi ME, Wildberger JE, Kreitner KF. Late Gadolinium Enhancement Cardiac Magnetic Resonance Imaging: From Basic Concepts to Emerging Methods. ROFO-FORTSCHR RONTG 2022; 194:491-504. [PMID: 35196714 DOI: 10.1055/a-1718-4355] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUND Late gadolinium enhancement (LGE) is a widely used cardiac magnetic resonance imaging (MRI) technique to diagnose a broad range of ischemic and non-ischemic cardiomyopathies. Since its development and validation against histology already more than two decades ago, the clinical utility of LGE and its span of applications have increased considerably. METHODS In this review we will present the basic concepts of LGE imaging and its diagnostic and prognostic value, elaborate on recent developments and emerging methods, and finally discuss future prospects. RESULTS Continuous developments in 3 D imaging methods, motion correction techniques, water/fat-separated imaging, dark-blood methods, and scar quantification improved the performance and further expanded the clinical utility of LGE imaging. CONCLUSION LGE imaging is the current noninvasive reference standard for the assessment of myocardial viability. Improvements in spatial resolution, scar-to-blood contrast, and water/fat-separated imaging further strengthened its position. KEY POINTS · LGE MRI is the reference standard for the noninvasive assessment of myocardial viability. · LGE MRI is used to diagnose a broad range of non-ischemic cardiomyopathies in everyday clinical practice.. · Improvements in spatial resolution and scar-to-blood contrast further strengthened its position. · Continuous developments improve its performance and further expand its clinical utility. CITATION FORMAT · Holtackers RJ, Emrich T, Botnar RM et al. Late Gadolinium Enhancement Cardiac Magnetic Resonance Imaging: From Basic Concepts to Emerging Methods. Fortschr Röntgenstr 2022; DOI: 10.1055/a-1718-4355.
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Affiliation(s)
- Robert J Holtackers
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, the Netherlands.,Department of Radiology & Nuclear Medicine, Maastricht University Medical Centre, the Netherlands.,School of Biomedical Engineering & Imaging Sciences, King's College London, United Kingdom
| | - Tilman Emrich
- Department of Diagnostic and Interventional Radiology, University Medical Center Mainz, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Rhine Main, Mainz, Germany.,Department of Radiology and Radiological Science, Medical University of South Carolina, Charleston, SC, USA
| | - René M Botnar
- School of Biomedical Engineering & Imaging Sciences, King's College London, United Kingdom.,Pontificia Universidad Católica de Chile, Escuela de Ingeniería, Santiago, Chile
| | - M Eline Kooi
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, the Netherlands.,Department of Radiology & Nuclear Medicine, Maastricht University Medical Centre, the Netherlands
| | - Joachim E Wildberger
- Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, the Netherlands.,Department of Radiology & Nuclear Medicine, Maastricht University Medical Centre, the Netherlands
| | - K-F Kreitner
- Department of Diagnostic and Interventional Radiology, University Medical Center Mainz, Germany
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Network-Assisted Systems Biology Analysis of the Mitochondrial Proteome in a Pre-Clinical Model of Ischemia, Revascularization and Post-Conditioning. Int J Mol Sci 2022; 23:ijms23042087. [PMID: 35216205 PMCID: PMC8879554 DOI: 10.3390/ijms23042087] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 02/07/2022] [Accepted: 02/10/2022] [Indexed: 12/24/2022] Open
Abstract
Infarct size is the major risk predictor for developing heart failure after an acute myocardial infarction (AMI). The discovery of the conditioning phenomena (i.e., repetitive brief cycles of ischemia applied either before or after a prolonged ischemic insult) has highlighted the existence of endogenous protective mechanisms of the heart potentially limiting infarct size after revascularization. However, most cardioprotective strategies, aiming at infarct size reduction, have failed in clinical studies. Thus, cardioprotection is an unmet clinical need. In the present study, we took a network-assisted systems biology approach to explore the mitochondrial proteomic signature of the myocardium after ischemia, ischemia with direct revascularization, and ischemia with re-establishment of blood flow by post-conditioning in a swine model of AMI. Furthermore, network extension with the ENCODE project human regulatory data allowed the prediction of potential transcription factors at play in the response to post-conditioning of the myocardium. Collectively, our results identify cardiac metabolism as a driver of cardioprotection, highlighting a dual role for post-conditioning promoting metabolic reprogramming of the myocardium, and a protective response mediated by VDAC2 and DJ-1 in the mitochondria.
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15
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Cardioprotective Mechanisms of Interrupted Anesthetic Preconditioning with Sevoflurane in the Setting of Ischemia/Reperfusion Injury in Rats. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12031476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background: Anesthetic preconditioning (AP) is known to mimic ischemic preconditioning. The purpose of this study was to investigate the effects of an interrupted sevoflurane administration protocol on myocardial ischemia/reperfusion (I/R) injury. Methods: Male Wistar rats (n = 60) were ventilated for 30 min with room air (control group, CG) or with a mixture of air and sevoflurane (1 minimum alveolar concentration—MAC) in 5-min cycles, alternating with 5-min wash-out periods (preconditioned groups). Cytokines implicated in the AP response were measured. An (I/R) lesion was produced immediately after the sham intervention (CG) and preconditioning protocol (early AP group, EAPG) or 24 h after the intervention (late AP group, LAPG). The area of fibrosis, the degree of apoptosis and the number of c-kit+ cells was estimated for each group. Results: Cytokine levels were increased post AP. The area of fibrosis decreased in both EAPG and LAPG compared to the CG (p < 0.0001). When compared to the CG, the degree of apoptosis was reduced in both LAPG (p = 0.006) and EAPG (p = 0.007) and the number of c-kit+ cells was the greatest for the LAPG (p < 0.0001). Conclusions: Sevoflurane preconditioning, using an interrupted anesthesia protocol, is efficient in myocardial protection and could be beneficial to reduce perioperative or periprocedural ischemia in patients with increased cardiovascular risk.
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16
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Thein PM, Mirzaee S, Cameron JD, Nasis A. Left ventricular contractile reserve as a determinant of adverse clinical outcomes: a systematic review. Intern Med J 2022; 52:186-197. [PMID: 35015318 DOI: 10.1111/imj.14995] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 07/02/2020] [Accepted: 07/10/2020] [Indexed: 11/30/2022]
Abstract
An abnormal left ventricular contractile reserve is often seen in patients undergoing stress echocardiogram and may indicate the presence of obstructive coronary artery disease. The techniques and indexes used to identify abnormal left ventricular contractile response and its prognostic value in the absence of known causes has not been well studied. To describe the characteristics and clinical outcomes associated with an abnormal left ventricular contractile response, we performed a systematic review that identified 27 eligible studies. A diverse range of indices were utilised to measure left ventricular contractile reserve, most commonly Δleft ventricular ejection fraction in 11 studies. Dobutamine stress echocardiogram was the most commonly performed modality (19 studies) followed by exercise stress echocardiogram (4 studies), dipyridamole stress echocardiogram (2 studies), invasive hemodynamic measurement (1 study) and dobutamine stress magnetic resonance imaging (1 study). All but one study demonstrated a significant association between the absence of left ventricular contractile reserve and increased rate of cardiovascular events, cardiac death and all-cause mortality.
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Affiliation(s)
- Paul M Thein
- Monash Cardiovascular Research Centre, MonashHEART, Monash Health, Monash University, Melbourne, Victoria, Australia
| | - Sam Mirzaee
- Monash Cardiovascular Research Centre, MonashHEART, Monash Health, Monash University, Melbourne, Victoria, Australia
| | - James D Cameron
- Monash Cardiovascular Research Centre, MonashHEART, Monash Health, Monash University, Melbourne, Victoria, Australia
| | - Arthur Nasis
- Monash Cardiovascular Research Centre, MonashHEART, Monash Health, Monash University, Melbourne, Victoria, Australia
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17
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Di Bella G, Aquaro GD, Bogaert J, Piaggi P, Micari A, Pizzino F, Camastra G, Carerj S, Campisi M, Bracco A, Carerj ML, Emdin M, Khandheria BK, Pingitore A. Non-transmural myocardial infarction associated with regional contractile function is an independent predictor of positive outcome: an integrated approach to myocardial viability. J Cardiovasc Magn Reson 2021; 23:121. [PMID: 34719402 PMCID: PMC8559354 DOI: 10.1186/s12968-021-00818-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 09/28/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Cardiovascular magnetic resonance permits assessment of irreversible myocardial fibrosis and contractile function in patients with previous myocardial infarction. We aimed to assess the prognostic value of myocardial fibrotic tissue with preserved/restored contractile activity. METHODS In 730 consecutive myocardial infarction patients (64 ± 11 years), we quantified left ventricular (LV) end-diastolic (EDV) and end-systolic (ESV) volumes, ejection fraction (EF), regional wall motion (WM) (1 normal, 2 hypokinetic, 3 akinetic, 4 dyskinetic), and WM score index (WMSI), and measured the transmural (1-50 and 51-100) and global extent of the infarct scar by late gadolinium enhancement (LGE). Contractile fibrotic (CT-F) segments were identified as those showing WM-1 and WM-2 with LGE ≤ or ≥ 50%. RESULTS During follow-up (median 2.5, range 1-4.7 years), cardiac events (cardiac death or appropriate implantable defibrillator shocks) occurred in 123 patients (17%). At univariate analysis, age, LVEDV, LVESV, LVEF, WMSI, extent of LGE, segments with transmural extent > 50%, and CT-F segments were associated with cardiac events. At multivariate analysis, age > 65 years, LVEF < 30%, WMSI > 1.7, and dilated LVEDV independently predicted cardiac events, while CT-F tissue was the only independent predictor of better outcome. After adjustment for LVEF < 30% and LVEDV dilatation, the presence of CT-F tissue was associated with good prognosis. CONCLUSIONS In addition to CMR imaging parameters associated with adverse outcome (severe LV dysfunction, poor WM, and dilated EDV), the presence of fibrotic myocardium showing contractile activity in patients with previous myocardial infarction yields a beneficial effect on patient survival.
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Affiliation(s)
- Gianluca Di Bella
- Clinical and Experimental Department of Medicine, University of Messina, via Consolare Valeria 1, 98100, Messina, Italy
| | | | - Jan Bogaert
- Department of Radiology, KU Leuven - UZ Leuven, Gasthuisberg Campus. Herestraat 49, 3000, Leuven, Belgium
| | - Paolo Piaggi
- Department of Information Engineering, University of Pisa, via G. Caruso 16, 56122, Pisa, Italy
| | - Antonio Micari
- Clinical and Experimental Department of Medicine, University of Messina, via Consolare Valeria 1, 98100, Messina, Italy
| | - Fausto Pizzino
- Department of Cardiology, "Santa Maria Dei Battuti" Hospital, Conegliano - ULSS2 Marca Trevigiana, Via Brigata Bisagno 2, 31015, Conegliano, Treviso, Italy
| | - Giovanni Camastra
- Cardiac Department, Vannini Hospital Rome, via Acqua Bullicante 4, 00177, Roma, Italy
| | - Scipione Carerj
- Clinical and Experimental Department of Medicine, University of Messina, via Consolare Valeria 1, 98100, Messina, Italy
| | - Mariapaola Campisi
- Clinical and Experimental Department of Medicine, University of Messina, via Consolare Valeria 1, 98100, Messina, Italy
| | - Antonio Bracco
- Clinical and Experimental Department of Medicine, University of Messina, via Consolare Valeria 1, 98100, Messina, Italy
- Department of Cardiology, ISMETT" Hospital, via Ernesto Tricomi, 5, 90127, Palermo, Province of Palermo, Italy
| | - Maria Ludovica Carerj
- Clinical and Experimental Department of Medicine, University of Messina, via Consolare Valeria 1, 98100, Messina, Italy
| | - Michele Emdin
- Fondazione Toscana G. Monasterio, via Giuseppe Moruzzi 1, 56124, Pisa, Italy
| | - Bijoy K Khandheria
- Aurora Cardiovascular and Thoracic Services, Advocate Aurora Health, Aurora Sinai/Aurora St. Luke's Medical Centers, 2801 W. Kinnickinnic River Parkway, Ste. 880, Milwaukee, WI, 53215, USA.
| | - Alessandro Pingitore
- C.N.R. Clinical Physiology Institute, via Giuseppe Moruzzi 1, 56124, Pisa, Italy
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18
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Fischesser DM, Bo B, Benton RP, Su H, Jahanpanah N, Haworth KJ. Controlling Reperfusion Injury With Controlled Reperfusion: Historical Perspectives and New Paradigms. J Cardiovasc Pharmacol Ther 2021; 26:504-523. [PMID: 34534022 DOI: 10.1177/10742484211046674] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Cardiac reperfusion injury is a well-established outcome following treatment of acute myocardial infarction and other types of ischemic heart conditions. Numerous cardioprotection protocols and therapies have been pursued with success in pre-clinical models. Unfortunately, there has been lack of successful large-scale clinical translation, perhaps in part due to the multiple pathways that reperfusion can contribute to cell death. The search continues for new cardioprotection protocols based on what has been learned from past results. One class of cardioprotection protocols that remain under active investigation is that of controlled reperfusion. This class consists of those approaches that modify, in a controlled manner, the content of the reperfusate or the mechanical properties of the reperfusate (e.g., pressure and flow). This review article first provides a basic overview of the primary pathways to cell death that have the potential to be addressed by various forms of controlled reperfusion, including no-reflow phenomenon, ion imbalances (particularly calcium overload), and oxidative stress. Descriptions of various controlled reperfusion approaches are described, along with summaries of both mechanistic and outcome-oriented studies at the pre-clinical and clinical phases. This review will constrain itself to approaches that modify endogenously-occurring blood components. These approaches include ischemic postconditioning, gentle reperfusion, controlled hypoxic reperfusion, controlled hyperoxic reperfusion, controlled acidotic reperfusion, and controlled ionic reperfusion. This review concludes with a discussion of the limitations of past approaches and how they point to potential directions of investigation for the future.
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Affiliation(s)
- Demetria M Fischesser
- Division of Cardiovascular Health and Disease, Department of Internal Medicine, College of Medicine, 2514University of Cincinnati, Cincinnati, OH, USA
| | - Bin Bo
- Division of Cardiovascular Health and Disease, Department of Internal Medicine, College of Medicine, 2514University of Cincinnati, Cincinnati, OH, USA
| | - Rachel P Benton
- Division of Cardiovascular Health and Disease, Department of Internal Medicine, College of Medicine, 2514University of Cincinnati, Cincinnati, OH, USA
| | - Haili Su
- Division of Cardiovascular Health and Disease, Department of Internal Medicine, College of Medicine, 2514University of Cincinnati, Cincinnati, OH, USA
| | - Newsha Jahanpanah
- Division of Cardiovascular Health and Disease, Department of Internal Medicine, College of Medicine, 2514University of Cincinnati, Cincinnati, OH, USA
| | - Kevin J Haworth
- Division of Cardiovascular Health and Disease, Department of Internal Medicine, College of Medicine, 2514University of Cincinnati, Cincinnati, OH, USA
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Abstract
Ischemic cardiomyopathy (ICM) is one of the most common causes of congestive heart failure. In patients with ICM, tissue characterization with cardiac magnetic resonance imaging (CMR) allows for evaluation of myocardial abnormalities in acute and chronic settings. Myocardial edema, microvascular obstruction (MVO), intracardiac thrombus, intramyocardial hemorrhage, and late gadolinium enhancement of the myocardium are easily depicted using standard CMR sequences. In the acute setting, tissue characterization is mainly focused on assessment of ventricular thrombus and MVO, which are associated with poor prognosis. Conversely, in chronic ICM, it is important to depict late gadolinium enhancement and myocardial ischemia using stress perfusion sequences. Overall, with CMR's ability to accurately characterize myocardial tissue in acute and chronic ICM, it represents a valuable diagnostic and prognostic imaging method for treatment planning. In particular, tissue characterization abnormalities in the acute setting can provide information regarding the patients that may develop major adverse cardiac event and show the presence of ventricular thrombus; in the chronic setting, evaluation of viable myocardium can be fundamental for planning myocardial revascularization. In this review, the main findings on tissue characterization are illustrated in acute and chronic settings using qualitative and quantitative tissue characterization.
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20
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Schuster A, Thiele H, Katus H, Werdan K, Eitel I, Zeiher AM, Baldus S, Rolf A, Kelle S. Kompetenz und Innovation in der kardiovaskulären MRT: Stellungnahme der Deutschen Gesellschaft für Kardiologie – Herz- und Kreislaufforschung. DER KARDIOLOGE 2021. [PMCID: PMC8361824 DOI: 10.1007/s12181-021-00494-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Diese Stellungnahme der Deutschen Gesellschaft für Kardiologie (DGK) beschäftigt sich mit der Bedeutung kardiologischer Kompetenz im Gebiet der kardiovaskulären Magnetresonanztomographie (CMR) und deren Aus- und Wechselwirkungen auf klinisches Management im Bereich der Diagnostik, Therapieplanung und Therapie von kardiologischen Patienten. Zahlreiche Innovationen sowohl im technischen als auch klinischen Bereich der CMR basieren auf Publikationen deutscher und europäischer Kardiologen und haben Einzug in die nationalen, europäischen und auch US-amerikanischen Leitlinien gefunden. Hier sollen Empfehlungen zur sicheren, qualitativ hochwertigen und kompetenten Durchführung von CMR-Untersuchungen gegeben werden, im Sinne einer optimalen Nutzung dieser Technik mit unmittelbarer klinischer Einordnung des Untersuchungsergebnisses für die Planung einer Therapiestrategie des kardiovaskulär erkrankten Patienten.
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Affiliation(s)
- Andreas Schuster
- Herzzentrum, Klinik für Kardiologie und Pneumologie, Universitätsmedizin Göttingen, Georg-August-Universität Göttingen, Robert-Koch-Str. 40, 37099 Göttingen, Deutschland
- Partner Site Göttingen, Deutsches Zentrum für Herz-Kreislauf-Forschung, Göttingen, Deutschland
| | - Holger Thiele
- Herzzentrum Leipzig, Klinik für Innere Medizin und Kardiologie, Universität Leipzig, Leipzig, Deutschland
- Leipzig Heart Science gGmbH, Leipzig, Deutschland
| | - Hugo Katus
- Medizinische Klinik III, Universitätsklinikum Heidelberg, Heidelberg, Deutschland
| | - Karl Werdan
- Klinik und Poliklinik für Innere Medizin III, Universitätsklinikum Halle (Saale), Halle (Saale), Deutschland
| | - Ingo Eitel
- Medizinische Klinik II – Universitäres Herzzentrum Lübeck, Universitätsklinikum Schleswig-Holstein, Lübeck, Deutschland
| | - Andreas M. Zeiher
- Klinik für Kardiologie, Universitätsklinikum Frankfurt, Frankfurt, Deutschland
| | - Stephan Baldus
- Medizinische Klinik III – Abteilung für Kardiologie, Pneumologie, Angiologie und Intensivmedizin, Universität Köln, Köln, Deutschland
| | - Andreas Rolf
- Klinik für Kardiologie, Herz‑, Lungen‑, Gefäß- und Rheumazentrum, Kerckhoff-Klinik, Bad Nauheim, Deutschland
| | - Sebastian Kelle
- Deutsches Herzzentrum Berlin, Berlin, Deutschland
- Klinik für Innere Medizin und Kardiologie, Charité Universitätsmedizin Berlin, Augustenburger Platz 1, Berlin, Deutschland
- Partner Site Berlin, Deutsches Zentrum für Herz-Kreislauf-Forschung, Berlin, Deutschland
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21
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Zhou J, Yu S, Zhou P, Liu C, Sheng Z, Li J, Chen R, Yan H, Zhao S. Impact of residual thrombus burden on ventricular deformation after acute myocardial infarction: A sub-analysis from an intravascular optical coherence tomography study. EClinicalMedicine 2021; 39:101058. [PMID: 34386760 PMCID: PMC8342893 DOI: 10.1016/j.eclinm.2021.101058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 07/12/2021] [Accepted: 07/14/2021] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Coronary residual thrombus before stenting in ST-segment elevation myocardial infarction (STEMI) has been linked to microvascular injury but its impact on ventricular deformation and cardiac dysfunction in longer term remains unclear. METHODS This was a post-hoc sub-analysis from an optical coherence tomography registry. Residual thrombus before stenting was measured geometrically and maximal thrombus-to-lumen area ratio (MTR) was reported. Cardiovascular magnetic resonance (CMR) follow-ups were performed at 30 days post STEMI. The primary outcomes were CMR-derived parameters including left ventricular ejection fraction (LVEF), infarct size, microvascular obstruction (MVO), and left ventricular global strains in radial (GRS), circumferential (GCS), longitudinal (GLS) directions. FINDINGS From March 2017 to March 2019, forty-two patients with first-ever anterior STEMI were included. Average CMR follow-up time was 33 (IQR 30-37) days. In multivariable analysis, MTR was significantly associated with LVEF (per 10%, adjusted β = -1·96, 95%CI -3·66 to -0·26), MVO (per 10%, adjusted β = 0·07, 95%CI 0·01 to 0·13), GRS (per 10%, adjusted β = -1·26, 95%CI -2·28 to -0·23), and GCS (per 10%, adjusted β = 0·53, 95%CI 0·01 to 1·06). However, it was not related to GLS (per 10%, adjusted β = 0·29, 95%CI -0·85 to 1·43) or infarct size (per 10%, adjusted β = 0·07, 95%CI -0·40 to 0·55). INTERPRETATION Larger residual thrombus burden was associated with worse GRS and GCS but not GLS after a first anterior myocardial infarction. FUNDING This work was supported by Chinese Academy of Medical Sciences Innovation Fund for Medical Sciences (2016-I2M-1-009), National Natural Science Foundation of China (81,970,308, 81,930,044, and 81,620,108,015), Sanming Project of Medicine in Shenzhen (SZSM201911017), and Shenzhen Key Medical Discipline Construction Fund (No. SZXK001).
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Affiliation(s)
- Jinying Zhou
- Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shiqin Yu
- Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Peng Zhou
- Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Fuwai Hospital, Chinese Academy of Medical Sciences, Shenzhen, China
| | - Chen Liu
- Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Fuwai Hospital, Chinese Academy of Medical Sciences, Shenzhen, China
| | - Zhaoxue Sheng
- Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jiannan Li
- Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Runzhen Chen
- Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hongbing Yan
- Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Fuwai Hospital, Chinese Academy of Medical Sciences, Shenzhen, China
- Corresponding authors. Hongbing Yan, MD, PhD, No.167, North Lishi Road, Xicheng District, Beijing, 100037, China.
| | - Shihua Zhao
- Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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22
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Beijnink CWH, van der Hoeven NW, Konijnenberg LSF, Kim RJ, Bekkers SCAM, Kloner RA, Everaars H, El Messaoudi S, van Rossum AC, van Royen N, Nijveldt R. Cardiac MRI to Visualize Myocardial Damage after ST-Segment Elevation Myocardial Infarction: A Review of Its Histologic Validation. Radiology 2021; 301:4-18. [PMID: 34427461 DOI: 10.1148/radiol.2021204265] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Cardiac MRI is a noninvasive diagnostic tool using nonionizing radiation that is widely used in patients with ST-segment elevation myocardial infarction (STEMI). Cardiac MRI depicts different prognosticating components of myocardial damage such as edema, intramyocardial hemorrhage (IMH), microvascular obstruction (MVO), and fibrosis. But how do cardiac MRI findings correlate to histologic findings? Shortly after STEMI, T2-weighted imaging and T2* mapping cardiac MRI depict, respectively, edema and IMH. The acute infarct size can be determined with late gadolinium enhancement (LGE) cardiac MRI. T2-weighted MRI should not be used for area-at-risk delineation because T2 values change dynamically over the first few days after STEMI and the severity of T2 abnormalities can be modulated with treatment. Furthermore, LGE cardiac MRI is the most accurate method to visualize MVO, which is characterized by hemorrhage, microvascular injury, and necrosis in histologic samples. In the chronic setting post-STEMI, LGE cardiac MRI is best used to detect replacement fibrosis (ie, final infarct size after injury healing). Finally, native T1 mapping has recently emerged as a contrast material-free method to measure infarct size that, however, remains inferior to LGE cardiac MRI. Especially LGE cardiac MRI-defined infarct size and the presence and extent of MVO may be used to monitor the effect of new therapeutic interventions in the treatment of reperfusion injury and infarct size reduction. © RSNA, 2021 Online supplemental material is available for this article.
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Affiliation(s)
- Casper W H Beijnink
- From the Department of Cardiology, Radboud University Medical Center, Geert Grooteplein Zuid 10, 6525 GA Nijmegen, the Netherlands (C.W.H.B., L.S.F.K., S.E.M., N.v.R., R.N.); Department of Cardiology, Amsterdam University Medical Center, Amsterdam, the Netherlands (N.W.v.d.H., H.E., A.C.v.R.); Department of Medicine, Duke University School of Medicine, Durham, NC (R.J.K.); Department of Cardiology, Maastricht University Medical Center, Maastricht, the Netherlands (S.C.A.M.B.); Huntington Medical Research Institutes, Pasadena, Calif (R.A.K.); and Division of Cardiovascular Medicine, Department of Medicine, Keck School of Medicine of University of Southern California, Los Angeles, Calif (R.A.K.)
| | - Nina W van der Hoeven
- From the Department of Cardiology, Radboud University Medical Center, Geert Grooteplein Zuid 10, 6525 GA Nijmegen, the Netherlands (C.W.H.B., L.S.F.K., S.E.M., N.v.R., R.N.); Department of Cardiology, Amsterdam University Medical Center, Amsterdam, the Netherlands (N.W.v.d.H., H.E., A.C.v.R.); Department of Medicine, Duke University School of Medicine, Durham, NC (R.J.K.); Department of Cardiology, Maastricht University Medical Center, Maastricht, the Netherlands (S.C.A.M.B.); Huntington Medical Research Institutes, Pasadena, Calif (R.A.K.); and Division of Cardiovascular Medicine, Department of Medicine, Keck School of Medicine of University of Southern California, Los Angeles, Calif (R.A.K.)
| | - Lara S F Konijnenberg
- From the Department of Cardiology, Radboud University Medical Center, Geert Grooteplein Zuid 10, 6525 GA Nijmegen, the Netherlands (C.W.H.B., L.S.F.K., S.E.M., N.v.R., R.N.); Department of Cardiology, Amsterdam University Medical Center, Amsterdam, the Netherlands (N.W.v.d.H., H.E., A.C.v.R.); Department of Medicine, Duke University School of Medicine, Durham, NC (R.J.K.); Department of Cardiology, Maastricht University Medical Center, Maastricht, the Netherlands (S.C.A.M.B.); Huntington Medical Research Institutes, Pasadena, Calif (R.A.K.); and Division of Cardiovascular Medicine, Department of Medicine, Keck School of Medicine of University of Southern California, Los Angeles, Calif (R.A.K.)
| | - Raymond J Kim
- From the Department of Cardiology, Radboud University Medical Center, Geert Grooteplein Zuid 10, 6525 GA Nijmegen, the Netherlands (C.W.H.B., L.S.F.K., S.E.M., N.v.R., R.N.); Department of Cardiology, Amsterdam University Medical Center, Amsterdam, the Netherlands (N.W.v.d.H., H.E., A.C.v.R.); Department of Medicine, Duke University School of Medicine, Durham, NC (R.J.K.); Department of Cardiology, Maastricht University Medical Center, Maastricht, the Netherlands (S.C.A.M.B.); Huntington Medical Research Institutes, Pasadena, Calif (R.A.K.); and Division of Cardiovascular Medicine, Department of Medicine, Keck School of Medicine of University of Southern California, Los Angeles, Calif (R.A.K.)
| | - Sebastiaan C A M Bekkers
- From the Department of Cardiology, Radboud University Medical Center, Geert Grooteplein Zuid 10, 6525 GA Nijmegen, the Netherlands (C.W.H.B., L.S.F.K., S.E.M., N.v.R., R.N.); Department of Cardiology, Amsterdam University Medical Center, Amsterdam, the Netherlands (N.W.v.d.H., H.E., A.C.v.R.); Department of Medicine, Duke University School of Medicine, Durham, NC (R.J.K.); Department of Cardiology, Maastricht University Medical Center, Maastricht, the Netherlands (S.C.A.M.B.); Huntington Medical Research Institutes, Pasadena, Calif (R.A.K.); and Division of Cardiovascular Medicine, Department of Medicine, Keck School of Medicine of University of Southern California, Los Angeles, Calif (R.A.K.)
| | - Robert A Kloner
- From the Department of Cardiology, Radboud University Medical Center, Geert Grooteplein Zuid 10, 6525 GA Nijmegen, the Netherlands (C.W.H.B., L.S.F.K., S.E.M., N.v.R., R.N.); Department of Cardiology, Amsterdam University Medical Center, Amsterdam, the Netherlands (N.W.v.d.H., H.E., A.C.v.R.); Department of Medicine, Duke University School of Medicine, Durham, NC (R.J.K.); Department of Cardiology, Maastricht University Medical Center, Maastricht, the Netherlands (S.C.A.M.B.); Huntington Medical Research Institutes, Pasadena, Calif (R.A.K.); and Division of Cardiovascular Medicine, Department of Medicine, Keck School of Medicine of University of Southern California, Los Angeles, Calif (R.A.K.)
| | - Henk Everaars
- From the Department of Cardiology, Radboud University Medical Center, Geert Grooteplein Zuid 10, 6525 GA Nijmegen, the Netherlands (C.W.H.B., L.S.F.K., S.E.M., N.v.R., R.N.); Department of Cardiology, Amsterdam University Medical Center, Amsterdam, the Netherlands (N.W.v.d.H., H.E., A.C.v.R.); Department of Medicine, Duke University School of Medicine, Durham, NC (R.J.K.); Department of Cardiology, Maastricht University Medical Center, Maastricht, the Netherlands (S.C.A.M.B.); Huntington Medical Research Institutes, Pasadena, Calif (R.A.K.); and Division of Cardiovascular Medicine, Department of Medicine, Keck School of Medicine of University of Southern California, Los Angeles, Calif (R.A.K.)
| | - Saloua El Messaoudi
- From the Department of Cardiology, Radboud University Medical Center, Geert Grooteplein Zuid 10, 6525 GA Nijmegen, the Netherlands (C.W.H.B., L.S.F.K., S.E.M., N.v.R., R.N.); Department of Cardiology, Amsterdam University Medical Center, Amsterdam, the Netherlands (N.W.v.d.H., H.E., A.C.v.R.); Department of Medicine, Duke University School of Medicine, Durham, NC (R.J.K.); Department of Cardiology, Maastricht University Medical Center, Maastricht, the Netherlands (S.C.A.M.B.); Huntington Medical Research Institutes, Pasadena, Calif (R.A.K.); and Division of Cardiovascular Medicine, Department of Medicine, Keck School of Medicine of University of Southern California, Los Angeles, Calif (R.A.K.)
| | - Albert C van Rossum
- From the Department of Cardiology, Radboud University Medical Center, Geert Grooteplein Zuid 10, 6525 GA Nijmegen, the Netherlands (C.W.H.B., L.S.F.K., S.E.M., N.v.R., R.N.); Department of Cardiology, Amsterdam University Medical Center, Amsterdam, the Netherlands (N.W.v.d.H., H.E., A.C.v.R.); Department of Medicine, Duke University School of Medicine, Durham, NC (R.J.K.); Department of Cardiology, Maastricht University Medical Center, Maastricht, the Netherlands (S.C.A.M.B.); Huntington Medical Research Institutes, Pasadena, Calif (R.A.K.); and Division of Cardiovascular Medicine, Department of Medicine, Keck School of Medicine of University of Southern California, Los Angeles, Calif (R.A.K.)
| | - Niels van Royen
- From the Department of Cardiology, Radboud University Medical Center, Geert Grooteplein Zuid 10, 6525 GA Nijmegen, the Netherlands (C.W.H.B., L.S.F.K., S.E.M., N.v.R., R.N.); Department of Cardiology, Amsterdam University Medical Center, Amsterdam, the Netherlands (N.W.v.d.H., H.E., A.C.v.R.); Department of Medicine, Duke University School of Medicine, Durham, NC (R.J.K.); Department of Cardiology, Maastricht University Medical Center, Maastricht, the Netherlands (S.C.A.M.B.); Huntington Medical Research Institutes, Pasadena, Calif (R.A.K.); and Division of Cardiovascular Medicine, Department of Medicine, Keck School of Medicine of University of Southern California, Los Angeles, Calif (R.A.K.)
| | - Robin Nijveldt
- From the Department of Cardiology, Radboud University Medical Center, Geert Grooteplein Zuid 10, 6525 GA Nijmegen, the Netherlands (C.W.H.B., L.S.F.K., S.E.M., N.v.R., R.N.); Department of Cardiology, Amsterdam University Medical Center, Amsterdam, the Netherlands (N.W.v.d.H., H.E., A.C.v.R.); Department of Medicine, Duke University School of Medicine, Durham, NC (R.J.K.); Department of Cardiology, Maastricht University Medical Center, Maastricht, the Netherlands (S.C.A.M.B.); Huntington Medical Research Institutes, Pasadena, Calif (R.A.K.); and Division of Cardiovascular Medicine, Department of Medicine, Keck School of Medicine of University of Southern California, Los Angeles, Calif (R.A.K.)
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Nicolau JC, Feitosa Filho GS, Petriz JL, Furtado RHDM, Précoma DB, Lemke W, Lopes RD, Timerman A, Marin Neto JA, Bezerra Neto L, Gomes BFDO, Santos ECL, Piegas LS, Soeiro ADM, Negri AJDA, Franci A, Markman Filho B, Baccaro BM, Montenegro CEL, Rochitte CE, Barbosa CJDG, Virgens CMBD, Stefanini E, Manenti ERF, Lima FG, Monteiro Júnior FDC, Correa Filho H, Pena HPM, Pinto IMF, Falcão JLDAA, Sena JP, Peixoto JM, Souza JAD, Silva LSD, Maia LN, Ohe LN, Baracioli LM, Dallan LADO, Dallan LAP, Mattos LAPE, Bodanese LC, Ritt LEF, Canesin MF, Rivas MBDS, Franken M, Magalhães MJG, Oliveira Júnior MTD, Filgueiras Filho NM, Dutra OP, Coelho OR, Leães PE, Rossi PRF, Soares PR, Lemos Neto PA, Farsky PS, Cavalcanti RRC, Alves RJ, Kalil RAK, Esporcatte R, Marino RL, Giraldez RRCV, Meneghelo RS, Lima RDSL, Ramos RF, Falcão SNDRS, Dalçóquio TF, Lemke VDMG, Chalela WA, Mathias Júnior W. Brazilian Society of Cardiology Guidelines on Unstable Angina and Acute Myocardial Infarction without ST-Segment Elevation - 2021. Arq Bras Cardiol 2021; 117:181-264. [PMID: 34320090 PMCID: PMC8294740 DOI: 10.36660/abc.20210180] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Affiliation(s)
- José Carlos Nicolau
- Instituto do Coração (InCor), Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP - Brasil
| | - Gilson Soares Feitosa Filho
- Escola Bahiana de Medicina e Saúde Pública, Salvador, BA - Brasil
- Centro Universitário de Tecnologia e Ciência (UniFTC), Salvador, BA - Brasil
| | - João Luiz Petriz
- Hospital Barra D'Or, Rede D'Or São Luiz, Rio de Janeiro, RJ - Brasil
| | | | | | - Walmor Lemke
- Clínica Cardiocare, Curitiba, PR - Brasil
- Hospital das Nações, Curitiba, PR - Brasil
| | | | - Ari Timerman
- Instituto Dante Pazzanese de Cardiologia, São Paulo, SP - Brasil
| | - José A Marin Neto
- Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Ribeirão Preto, SP - Brasil
| | | | - Bruno Ferraz de Oliveira Gomes
- Hospital Barra D'Or, Rede D'Or São Luiz, Rio de Janeiro, RJ - Brasil
- Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ - Brasil
| | | | | | | | | | | | | | | | | | - Carlos Eduardo Rochitte
- Hospital do Coração (HCor), São Paulo, SP - Brasil
- Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP - Brasil
| | | | | | - Edson Stefanini
- Escola Paulista de Medicina da Universidade Federal de São Paulo (UNIFESP), São Paulo, SP - Brasil
| | | | - Felipe Gallego Lima
- Instituto do Coração (InCor), Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP - Brasil
| | | | | | | | | | | | | | - José Maria Peixoto
- Universidade José do Rosário Vellano (UNIFENAS), Belo Horizonte, MG - Brasil
| | - Juliana Ascenção de Souza
- Instituto do Coração (InCor), Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP - Brasil
| | | | - Lilia Nigro Maia
- Faculdade de Medicina de São José do Rio Preto (FAMERP), São José do Rio Preto, SP - Brasil
| | | | - Luciano Moreira Baracioli
- Instituto do Coração (InCor), Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP - Brasil
| | - Luís Alberto de Oliveira Dallan
- Instituto do Coração (InCor), Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP - Brasil
| | - Luis Augusto Palma Dallan
- Instituto do Coração (InCor), Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP - Brasil
| | | | - Luiz Carlos Bodanese
- Pontifícia Universidade Católica do Rio Grande do Sul (PUC-RS), Porto Alegre, RS - Brasil
| | | | | | - Marcelo Bueno da Silva Rivas
- Rede D'Or São Luiz, Rio de Janeiro, RJ - Brasil
- Universidade do Estado do Rio de Janeiro (UERJ), Rio de Janeiro, RJ - Brasil
| | | | | | - Múcio Tavares de Oliveira Júnior
- Instituto do Coração (InCor), Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP - Brasil
| | - Nivaldo Menezes Filgueiras Filho
- Universidade do Estado da Bahia (UNEB), Salvador, BA - Brasil
- Universidade Salvador (UNIFACS), Salvador, BA - Brasil
- Hospital EMEC, Salvador, BA - Brasil
| | - Oscar Pereira Dutra
- Instituto de Cardiologia - Fundação Universitária de Cardiologia do Rio Grande do Sul, Porto Alegre, RS - Brasil
| | - Otávio Rizzi Coelho
- Faculdade de Ciências Médicas da Universidade Estadual de Campinas (UNICAMP), Campinas, SP - Brasil
| | | | | | - Paulo Rogério Soares
- Instituto do Coração (InCor), Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP - Brasil
| | | | | | | | | | | | - Roberto Esporcatte
- Universidade do Estado do Rio de Janeiro (UERJ), Rio de Janeiro, RJ - Brasil
| | | | | | | | | | | | | | - Talia Falcão Dalçóquio
- Instituto do Coração (InCor), Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP - Brasil
| | | | - William Azem Chalela
- Instituto do Coração (InCor), Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP - Brasil
| | - Wilson Mathias Júnior
- Instituto do Coração (InCor), Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP - Brasil
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24
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Heidenreich JF, Gassenmaier T, Ankenbrand MJ, Bley TA, Wech T. Self-configuring nnU-net pipeline enables fully automatic infarct segmentation in late enhancement MRI after myocardial infarction. Eur J Radiol 2021; 141:109817. [PMID: 34144308 DOI: 10.1016/j.ejrad.2021.109817] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 05/07/2021] [Accepted: 06/07/2021] [Indexed: 10/21/2022]
Abstract
PURPOSE To fully automatically derive quantitative parameters from late gadolinium enhancement (LGE) cardiac MR (CMR) in patients with myocardial infarction and to investigate if phase sensitive or magnitude reconstructions or a combination of both results in best segmentation accuracy. METHODS In this retrospective single center study, a convolutional neural network with a U-Net architecture with a self-configuring framework ("nnU-net") was trained for segmentation of left ventricular myocardium and infarct zone in LGE-CMR. A database of 170 examinations from 78 patients with history of myocardial infarction was assembled. Separate fitting of the model was performed, using phase sensitive inversion recovery, the magnitude reconstruction or both contrasts as input channels. Manual labelling served as ground truth. In a subset of 10 patients, the performance of the trained models was evaluated and quantitatively compared by determination of the Sørensen-Dice similarity coefficient (DSC) and volumes of the infarct zone compared with the manual ground truth using Pearson's r correlation and Bland-Altman analysis. RESULTS The model achieved high similarity coefficients for myocardium and scar tissue. No significant difference was observed between using PSIR, magnitude reconstruction or both contrasts as input (PSIR and MAG; mean DSC: 0.83 ± 0.03 for myocardium and 0.72 ± 0.08 for scars). A strong correlation for volumes of infarct zone was observed between manual and model-based approach (r = 0.96), with a significant underestimation of the volumes obtained from the neural network. CONCLUSION The self-configuring nnU-net achieves predictions with strong agreement compared to manual segmentation, proving the potential as a promising tool to provide fully automatic quantitative evaluation of LGE-CMR.
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Affiliation(s)
- Julius F Heidenreich
- Department of Diagnostic and Interventional Radiology, University Hospital Würzburg, Germany.
| | - Tobias Gassenmaier
- Department of Diagnostic and Interventional Radiology, University Hospital Würzburg, Germany
| | - Markus J Ankenbrand
- Department of Cellular and Molecular Imaging, Comprehensive Heart Failure Center, University Hospital Würzburg, Germany; Center for Computational and Theoretical Biology, University of Würzburg, Germany
| | - Thorsten A Bley
- Department of Diagnostic and Interventional Radiology, University Hospital Würzburg, Germany
| | - Tobias Wech
- Department of Diagnostic and Interventional Radiology, University Hospital Würzburg, Germany
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25
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Mandoli GE, D'Ascenzi F, Vinco G, Benfari G, Ricci F, Focardi M, Cavigli L, Pastore MC, Sisti N, De Vivo O, Santoro C, Mondillo S, Cameli M. Novel Approaches in Cardiac Imaging for Non-invasive Assessment of Left Heart Myocardial Fibrosis. Front Cardiovasc Med 2021; 8:614235. [PMID: 33937354 PMCID: PMC8081830 DOI: 10.3389/fcvm.2021.614235] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 03/22/2021] [Indexed: 12/21/2022] Open
Abstract
In the past, the identification of myocardial fibrosis was only possible through invasive histologic assessment. Although endomyocardial biopsy remains the gold standard, recent advances in cardiac imaging techniques have enabled non-invasive tissue characterization of the myocardium, which has also provided valuable insights into specific disease processes. The diagnostic accuracy, incremental yield and prognostic value of speckle tracking echocardiography, late gadolinium enhancement and parametric mapping modules by cardiac magnetic resonance and cardiac computed tomography have been validated against tissue samples and tested in broad patient populations, overall providing relevant clinical information to the cardiologist. This review describes the patterns of left ventricular and left atrial fibrosis, and their characterization by advanced echocardiography, cardiac magnetic resonance and cardiac computed tomography, allowing for clinical applications in sudden cardiac death and management of atrial fibrillation.
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Affiliation(s)
- Giulia Elena Mandoli
- Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Siena, Italy
| | - Flavio D'Ascenzi
- Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Siena, Italy
| | - Giulia Vinco
- Section of Cardiology, Department of Medicine, University of Verona, Verona, Italy
| | - Giovanni Benfari
- Section of Cardiology, Department of Medicine, University of Verona, Verona, Italy
| | - Fabrizio Ricci
- Department of Neuroscience, Imaging and Clinical Sciences, Institute of Advanced Biomedical Technologies, "G.d'Annunzio" University of Chieti-Pescara, Chieti, Italy.,Department of Clinical Sciences, Lund University, Malmö, Sweden.,Casa di Cura Villa Serena, Città Sant'Angelo, Italy
| | - Marta Focardi
- Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Siena, Italy
| | - Luna Cavigli
- Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Siena, Italy
| | - Maria Concetta Pastore
- Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Siena, Italy
| | - Nicolò Sisti
- Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Siena, Italy
| | - Oreste De Vivo
- Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Siena, Italy
| | - Ciro Santoro
- Department of Advanced Biomedical Science, Federico II University Hospital Naples, Naples, Italy
| | - Sergio Mondillo
- Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Siena, Italy
| | - Matteo Cameli
- Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Siena, Italy
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26
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Abstract
Purpose of Review The purpose of this review is to summarize the application of cardiac magnetic resonance (CMR) in the diagnostic and prognostic evaluation of patients with heart failure (HF). Recent Findings CMR is an important non-invasive imaging modality in the assessment of ventricular volumes and function and in the analysis of myocardial tissue characteristics. The information derived from CMR provides a comprehensive evaluation of HF. Its unique ability of tissue characterization not only helps to reveal the underlying etiologies of HF but also offers incremental prognostic information. Summary CMR is a useful non-invasive tool for the diagnosis and assessment of prognosis in patients suffering from heart failure.
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Affiliation(s)
- Chuanfen Liu
- Cardiovascular Division, Department of Medicine, Perelman School of Medicine of the University of Pennsylvania, Philadelphia, PA USA
- Department of Cardiology, Peking University People’s Hospital, Beijing, China
| | - Victor A. Ferrari
- Cardiovascular Division, Department of Medicine, Perelman School of Medicine of the University of Pennsylvania, Philadelphia, PA USA
| | - Yuchi Han
- Cardiovascular Division, Department of Medicine, Perelman School of Medicine of the University of Pennsylvania, Philadelphia, PA USA
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27
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Abstract
This review describes the current role and potential future applications of cardiac magnetic resonance (CMR) for the management of heart failure (HF). CMR allows noninvasive morphologic and functional assessment, tissue characterization, blood flow, and perfusion evaluation. CMR overcomes echocardiography limitations (geometric assumptions, interobserver variability and poor acoustic window) and provides incremental information in relation to cause, prognosis, and treatment monitoring of patients with HF.
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28
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Aboul Enein F, Allaaboun S, Khayyat S, Andijani M, Alkhuzai MM, Aljunied AA, Al Adhreai M. Association Between Myocardial Scar Burden and Left Ventricular Ejection Fraction in Ischemic Cardiomyopathy. Cureus 2020; 12:e12110. [PMID: 33364136 PMCID: PMC7749857 DOI: 10.7759/cureus.12110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Background This study was conducted to assess the relationship between scar burden (extent and severity) and the follow-up left ventricular ejection fraction (LVEF). Methods Patients were referred for viability assessment with late gadolinium enhancement (LGE) on cardiovascular magnetic resonance imaging. To measure the transmural extent of LGE in each segment (scar score), we used a five-point scale system. Baseline ejection fraction (EF) and at follow-up were recorded. LVEF classified as non-severe and severely depressed. Results The study included 178 patients (males: 88.8%; mean age: 57.1±10.02 years; mean baseline LVEF: 28.61±10.39). In patients with severe baseline LVEF, the mean scar percentage was higher than that in patients who had non-severe LVEF (38.8±19.41 vs. 24.61±21.21; p˂0.001). On linear regression analysis, aldosterone antagonist and total scar score significantly predicted follow-up ejection fraction (EF) (B=-7.083, p˂0.001 and B=-3.038, p=0.038, respectively). Left anterior descending artery (LAD) territory viability and baseline EF significantly predicted change in EF in patients with LVEF ≤ 35% (B=5.389, p=0.009 and B=-0.581, p˂0.001, respectively). On binary regression analysis for the prediction of at least 5% improvement in EF in patients with baseline EF ≤ 35%, baseline EF and LAD viability were significant (B=-0.15, p=0.014 and B=1.042 and p=0.054, respectively). Conclusions The extent of myocardial scar and viability of LAD territory are identified as the important and independent parameters for the predictions of improvement in EF even after adjustment for demographics and baseline EF and following the standards of care medication.
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29
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Yang T, Lu M, Ouyang W, Li B, Yang Y, Zhao S, Sun H. Prognostic value of myocardial scar by magnetic resonance imaging in patients undergoing coronary artery bypass graft. Int J Cardiol 2020; 326:49-54. [PMID: 33296720 DOI: 10.1016/j.ijcard.2020.10.052] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 07/01/2020] [Accepted: 10/16/2020] [Indexed: 10/22/2022]
Abstract
BACKGROUND Previous studies demonstrated that scar tissue assessed by late gadolinium enhancement cardiovascular magnetic resonance imaging (LGE-CMR) is associated with recovery of cardiac function after coronary artery bypass graft (CABG) in patients with a history of myocardial infarction (MI). However, information on the association between myocardial scar at baseline and long-term survival after CABG in these patients is lacking. METHODS From April 2010 to May 2013, consecutive patients with multivessel coronary artery disease (CAD, > 70% stenosis in ≥2 vessels) and MI (> 3 months) who underwent LGE-CMR within 1 month prior to isolated CABG were enrolled. Left ventricular functional parameters and scar tissue were assessed by LGE-CMR before surgery. A standard 17-segment model was used for scar quantification. Predictors for cardiovascular events (CVEs) were analyzed. RESULTS Of 148 patients who met the study inclusion/exclusion criteria, 140 cases had follow-up data and were included in final analysis. Of the latter, 27 (19.3%) patients suffered CVEs perioperatively or during mean 89.6 ± 12.0 months follow-up. In Cox proportional hazard regression model, the most significant predictor for CVEs after CABG was the number of scar segments on LGE-CMR (Hazard ratio 2.078, 95% Confidence Interval 1.133-3.814, P= 0.018). In Receiver-Operator-Characteristic (ROC) analysis, number of scar segments ≥6 predicted CVEs (sensitivity, 74.1%; specificity, 95.6%; area under the curve [AUC] = 0.934, P < 0.001). CONCLUSIONS Scar tissue identified by LGE-CMR appears to be an independent predictor of CVEs after CABG in patients with a history of MI, which might allow preoperative risk stratification.
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Affiliation(s)
- Tao Yang
- Department of Cardiovascular Surgery, Cardiovascular Institute and Fu Wai Hospital,Chinese Academy of Medical Sciences and Peking Union Medical College, National Center for Cardiovascular Diseases, No.167 North Lishi Road, Xicheng District, Beijing, 100037, China
| | - Minjie Lu
- Department of Radiology, Cardiovascular Institute and Fu Wai Hospital,Chinese Academy of Medical Sciences and Peking Union Medical College, National Center for Cardiovascular Diseases, No.167 North Lishi Road, Xicheng District, Beijing 100037, China
| | - Wenbin Ouyang
- Department of Cardiovascular Surgery, Cardiovascular Institute and Fu Wai Hospital,Chinese Academy of Medical Sciences and Peking Union Medical College, National Center for Cardiovascular Diseases, No.167 North Lishi Road, Xicheng District, Beijing, 100037, China
| | - Baotong Li
- Department of Cardiovascular Surgery, Cardiovascular Institute and Fu Wai Hospital,Chinese Academy of Medical Sciences and Peking Union Medical College, National Center for Cardiovascular Diseases, No.167 North Lishi Road, Xicheng District, Beijing, 100037, China
| | - Yan Yang
- Department of Cardiovascular Surgery, Cardiovascular Institute and Fu Wai Hospital,Chinese Academy of Medical Sciences and Peking Union Medical College, National Center for Cardiovascular Diseases, No.167 North Lishi Road, Xicheng District, Beijing, 100037, China
| | - Shihua Zhao
- Department of Radiology, Cardiovascular Institute and Fu Wai Hospital,Chinese Academy of Medical Sciences and Peking Union Medical College, National Center for Cardiovascular Diseases, No.167 North Lishi Road, Xicheng District, Beijing 100037, China
| | - Hansong Sun
- Department of Cardiovascular Surgery, Cardiovascular Institute and Fu Wai Hospital,Chinese Academy of Medical Sciences and Peking Union Medical College, National Center for Cardiovascular Diseases, No.167 North Lishi Road, Xicheng District, Beijing, 100037, China..
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Imamura S, Hirata K, Takemoto K, Orii M, Shimamura K, Shiono Y, Tanimoto T, Matsuo Y, Ino Y, Kitabata H, Kubo T, Tanaka A, Hozumi T, Akasaka T. Assessment of myocardial damage after acute myocardial infarction by diastolic deceleration time of coronary flow velocity using echocardiography and contrast‐enhanced magnetic resonance imaging. Echocardiography 2020; 37:1981-1988. [DOI: 10.1111/echo.14903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 09/25/2020] [Accepted: 10/03/2020] [Indexed: 11/30/2022] Open
Affiliation(s)
- Sari Imamura
- Department of Cariology Wakayama Medical University Wakayama Japan
| | - Kumiko Hirata
- Division of Medical Science Department of Education Osaka Educational University Osaka Japan
| | - Kazushi Takemoto
- Department of Cariology Wakayama Medical University Wakayama Japan
| | - Makoto Orii
- Department of Cariology Wakayama Medical University Wakayama Japan
| | | | - Yasutsugu Shiono
- Department of Cariology Wakayama Medical University Wakayama Japan
| | - Takashi Tanimoto
- Department of Cariology Wakayama Medical University Wakayama Japan
| | - Yoshiki Matsuo
- Department of Cariology Wakayama Medical University Wakayama Japan
| | - Yasushi Ino
- Department of Cariology Wakayama Medical University Wakayama Japan
| | | | - Takashi Kubo
- Department of Cariology Wakayama Medical University Wakayama Japan
| | - Atsushi Tanaka
- Department of Cariology Wakayama Medical University Wakayama Japan
| | - Takeshi Hozumi
- Department of Cariology Wakayama Medical University Wakayama Japan
| | - Takashi Akasaka
- Department of Cariology Wakayama Medical University Wakayama Japan
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31
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Ahmed SW, Sultan FAT, Awan S, Ahmed I. Prognostic Significance of CMR Findings in Patients with Known Coronary Artery Disease - Experience from a South Asian Country. J Clin Imaging Sci 2020; 10:75. [PMID: 33274119 PMCID: PMC7708965 DOI: 10.25259/jcis_153_2020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Accepted: 10/25/2020] [Indexed: 12/25/2022] Open
Abstract
Objectives: South Asians (SA) have a higher burden of coronary artery disease (CAD) and are known to have a worse prognosis compared to other ethnicities. Therefore, it is imperative to improve the risk stratification of SA patient with CAD and to seek out newer prognostic markers beyond the conventional echocardiography.The aim of this study was to investigate whether variables obtained by cardiac magnetic resonance (CMR) improve risk stratification of South Asian patients with known CAD. Material and Methods: We retrospectively analyzed 147 patients with evidence of CAD that had a CMR at our center between January 2011 and January 2019. LV volumes and regional wall motions were acquired by cine images, while infarct size (IS) was measured by late gadolinium enhancement. At a mean follow-up of 3.36 ± 2.22 years, cardiac events (non-fatal myocardial infarction, hospitalization due to heart failure, life-threatening arrhythmia, or cardiac death) occurred in 49 patients. An IS ≥35%, left ventricular ejection fraction (LVEF) ≤31%, and a wall motion score index (WMSI) ≥1.9 were strongly associated with follow-up cardiac events (P < 0.001). Patients that had none or less than 3 of these factors, showed a lower risk of cardiac events (HR 0.22 CI [0.11–0.44] P < 0.001 and HR 0.12 CI [0.04–0.32] P < 0.001, respectively) compared to those with all three factors. Conclusion: Integration of CMR derived factors such as IS and WMSI with LVEF can improve the prognostication of the SA population with CAD. Better risk stratification of patients can lead to improved and cost-effective therapeutic strategies to ameliorate the prognosis of these patients.
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Affiliation(s)
- Syed Waqar Ahmed
- Department of Medicine, Section of Cardiology, Aga Khan University Hospital, Karachi, Pakistan
| | - Fateh Ali Tipoo Sultan
- Department of Medicine, Section of Cardiology, Aga Khan University Hospital, Karachi, Pakistan
| | - Safia Awan
- Department of Medicine, Aga Khan University Hospital, Karachi, Pakistan
| | - Imran Ahmed
- Department of Radiology, Aga Khan University Hospital, Karachi, Pakistan
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Abstract
Myocardial fibrosis, the expansion of the cardiac interstitium through deposition of extracellular matrix proteins, is a common pathophysiologic companion of many different myocardial conditions. Fibrosis may reflect activation of reparative or maladaptive processes. Activated fibroblasts and myofibroblasts are the central cellular effectors in cardiac fibrosis, serving as the main source of matrix proteins. Immune cells, vascular cells and cardiomyocytes may also acquire a fibrogenic phenotype under conditions of stress, activating fibroblast populations. Fibrogenic growth factors (such as transforming growth factor-β and platelet-derived growth factors), cytokines [including tumour necrosis factor-α, interleukin (IL)-1, IL-6, IL-10, and IL-4], and neurohumoral pathways trigger fibrogenic signalling cascades through binding to surface receptors, and activation of downstream signalling cascades. In addition, matricellular macromolecules are deposited in the remodelling myocardium and regulate matrix assembly, while modulating signal transduction cascades and protease or growth factor activity. Cardiac fibroblasts can also sense mechanical stress through mechanosensitive receptors, ion channels and integrins, activating intracellular fibrogenic cascades that contribute to fibrosis in response to pressure overload. Although subpopulations of fibroblast-like cells may exert important protective actions in both reparative and interstitial/perivascular fibrosis, ultimately fibrotic changes perturb systolic and diastolic function, and may play an important role in the pathogenesis of arrhythmias. This review article discusses the molecular mechanisms involved in the pathogenesis of cardiac fibrosis in various myocardial diseases, including myocardial infarction, heart failure with reduced or preserved ejection fraction, genetic cardiomyopathies, and diabetic heart disease. Development of fibrosis-targeting therapies for patients with myocardial diseases will require not only understanding of the functional pluralism of cardiac fibroblasts and dissection of the molecular basis for fibrotic remodelling, but also appreciation of the pathophysiologic heterogeneity of fibrosis-associated myocardial disease.
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Affiliation(s)
- Nikolaos G Frangogiannis
- Department of Medicine (Cardiology), The Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, 1300 Morris Park Avenue Forchheimer G46B, Bronx, NY 10461, USA
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López K, Neji R, Mukherjee RK, Whitaker J, Phinikaridou A, Razavi R, Prieto C, Roujol S, Botnar R. Contrast-free high-resolution 3D magnetization transfer imaging for simultaneous myocardial scar and cardiac vein visualization. MAGMA (NEW YORK, N.Y.) 2020; 33:627-640. [PMID: 32078075 PMCID: PMC7502043 DOI: 10.1007/s10334-020-00833-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 01/27/2020] [Accepted: 01/29/2020] [Indexed: 12/26/2022]
Abstract
OBJECTIVE To develop a three-dimensional (3D) high-resolution free-breathing magnetization transfer ratio (MTR) sequence for contrast-free assessment of myocardial infarct and coronary vein anatomy. MATERIALS AND METHODS Two datasets with and without off-resonance magnetization transfer preparation were sequentially acquired to compute MTR. 2D image navigators enabled beat-to-beat translational and bin-to-bin non-rigid motion correction. Two different imaging sequences were explored. MTR scar localization was compared against 3D late gadolinium enhancement (LGE) in a porcine model of myocardial infarction. MTR variability across the left ventricle and vessel sharpness in the coronary veins were evaluated in healthy human subjects. RESULTS A decrease in MTR was observed in areas with LGE in all pigs (non-infarct: 25.1 ± 1.7% vs infarct: 16.8 ± 1.9%). The average infarct volume overlap on MTR and LGE was 62.5 ± 19.2%. In humans, mean MTR in myocardium was between 37 and 40%. Spatial variability was between 15 and 20% of the mean value. 3D whole heart MT-prepared datasets enabled coronary vein visualization with up to 8% improved vessel sharpness for non-rigid compared to translational motion correction. DISCUSSION MTR and LGE showed agreement in infarct detection and localization in a swine model. Free-breathing 3D MTR maps are feasible in humans but high spatial variability was observed. Further clinical studies are warranted.
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Affiliation(s)
- Karina López
- School of Biomedical Engineering and Imaging Sciences, King's College London, St Thomas' Hospital, 3rd Floor Lambeth Wing, London, SE1 7EH, UK.
| | - Radhouene Neji
- School of Biomedical Engineering and Imaging Sciences, King's College London, St Thomas' Hospital, 3rd Floor Lambeth Wing, London, SE1 7EH, UK
- MR Research Collaborations, Siemens Healthcare Limited, Frimley, UK
| | - Rahul K Mukherjee
- School of Biomedical Engineering and Imaging Sciences, King's College London, St Thomas' Hospital, 3rd Floor Lambeth Wing, London, SE1 7EH, UK
| | - John Whitaker
- School of Biomedical Engineering and Imaging Sciences, King's College London, St Thomas' Hospital, 3rd Floor Lambeth Wing, London, SE1 7EH, UK
| | - Alkystis Phinikaridou
- School of Biomedical Engineering and Imaging Sciences, King's College London, St Thomas' Hospital, 3rd Floor Lambeth Wing, London, SE1 7EH, UK
| | - Reza Razavi
- School of Biomedical Engineering and Imaging Sciences, King's College London, St Thomas' Hospital, 3rd Floor Lambeth Wing, London, SE1 7EH, UK
| | - Claudia Prieto
- School of Biomedical Engineering and Imaging Sciences, King's College London, St Thomas' Hospital, 3rd Floor Lambeth Wing, London, SE1 7EH, UK
| | - Sébastien Roujol
- School of Biomedical Engineering and Imaging Sciences, King's College London, St Thomas' Hospital, 3rd Floor Lambeth Wing, London, SE1 7EH, UK
| | - René Botnar
- School of Biomedical Engineering and Imaging Sciences, King's College London, St Thomas' Hospital, 3rd Floor Lambeth Wing, London, SE1 7EH, UK
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Miller RJH, Klein E, Gransar H, Slomka PJ, Friedman JD, Hayes S, Thomson L, Tamarappoo B, Rozanski A, Berman DS. Prognostic significance of previous myocardial infarction and previous revascularization in patients undergoing SPECT MPI. Int J Cardiol 2020; 313:9-15. [PMID: 32349938 DOI: 10.1016/j.ijcard.2020.04.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 03/31/2020] [Accepted: 04/03/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND Accurate risk stratification in patients with known coronary artery disease (CAD) is critical for patient management. Prior myocardial infarction (MI) or revascularization without MI are often equated as known CAD. We compared the prognostic significance of prior MI and previous revascularization in patients undergoing single photon emission computed tomography (SPECT) myocardial perfusion imaging (MPI). METHODS Consecutive patients undergoing SPECT MPI at Cedars-Sinai Medical Center between 1992 and 2012 were included. Medical history, including history of MI or revascularization, was collected prospectively. Association with all-cause mortality was assessed with multivariable Cox analysis, adjusted for patient demographics, medical history, medications, and SPECT MPI results. RESULTS In total, 50,121 patients were identified including 7428 (14.8%) with a history of previous MI and 3608 (7.2%) with a history of revascularization without prior MI. During a median follow-up of 8.0 years, 19,696 (39.3%) patients died including 4467 (60.1%) with a history of MI and 1880 (52.1%) with a history of revascularization. Prior MI (adjusted HR 1.12, p=0.001) and prior revascularization without MI (adjusted HR 1.15, p<0.001) were independently associated with increased all-cause mortality. Previous MI (adjusted HR 1.27, p<0.001) and previous revascularization without MI (adjusted HR 1.21, p<0.001) were significantly associated with increased all-cause mortality only in patients without ischemia. CONCLUSIONS In this large cohort of patients undergoing SPECT MPI, previous MI and previous revascularization without MI were independent predictors of all-cause mortality, with no significant difference in associated risk. History of CAD may be particularly important for risk stratification in patients without ischemia.
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Affiliation(s)
- Robert J H Miller
- Departments of Imaging and Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA; Department of Cardiac Sciences, University of Calgary, Calgary, AB, Canada
| | - Eyal Klein
- Departments of Imaging and Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Heidi Gransar
- Departments of Imaging and Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Piotr J Slomka
- Departments of Imaging and Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - John D Friedman
- Departments of Imaging and Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Sean Hayes
- Departments of Imaging and Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Louise Thomson
- Departments of Imaging and Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Balaji Tamarappoo
- Departments of Imaging and Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Alan Rozanski
- Division of Cardiology, Mount Sinai St. Luke's Hospital, Mount Sinai Heart and the Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Daniel S Berman
- Departments of Imaging and Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
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Li W. Biomechanics of infarcted left Ventricle-A review of experiments. J Mech Behav Biomed Mater 2020; 103:103591. [PMID: 32090920 DOI: 10.1016/j.jmbbm.2019.103591] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 12/06/2019] [Accepted: 12/09/2019] [Indexed: 01/14/2023]
Abstract
Myocardial infarction (MI) is one of leading diseases to contribute to annual death rate of 5% in the world. In the past decades, significant work has been devoted to this subject. Biomechanics of infarcted left ventricle (LV) is associated with MI diagnosis, understanding of remodelling, MI micro-structure and biomechanical property characterizations as well as MI therapy design and optimization, but the subject has not been reviewed presently. In the article, biomechanics of infarcted LV was reviewed in terms of experiments achieved in the subject so far. The concerned content includes experimental remodelling, kinematics and kinetics of infarcted LVs. A few important issues were discussed and several essential topics that need to be investigated further were summarized. Microstructure of MI tissue should be observed even carefully and compared between different methods for producing MI scar in the same animal model, and eventually correlated to passive biomechanical property by establishing innovative constitutive laws. More uniaxial or biaxial tensile tests are desirable on MI, border and remote tissues, and viscoelastic property identification should be performed in various time scales. Active contraction experiments on LV wall with MI should be conducted to clarify impaired LV pumping function and supply necessary data to the function modelling. Pressure-volume curves of LV with MI during diastole and systole for the human are also desirable to propose and validate constitutive laws for LV walls with MI.
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Affiliation(s)
- Wenguang Li
- School of Engineering, University of Glasgow, Glasgow, G12 8QQ, UK.
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Kolentinis M, Le M, Nagel E, Puntmann VO. Contemporary Cardiac MRI in Chronic Coronary Artery Disease. Eur Cardiol 2020; 15:e50. [PMID: 32612708 PMCID: PMC7312615 DOI: 10.15420/ecr.2019.17] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 02/17/2020] [Indexed: 12/12/2022] Open
Abstract
Chronic coronary artery disease remains an unconquered clinical problem, affecting an increasing number of people worldwide. Despite the improved understanding of the disease development, the implementation of the many advances in diagnosis and therapy is lacking. Many clinicians continue to rely on patient's symptoms and diagnostic methods, which do not enable optimal clinical decisions. For example, echocardiography and invasive coronary catheterisation remain the mainstay investigations for stable angina patients in many places, despite the evidence on their limitations and availability of better diagnostic options. Cardiac MRI is a powerful diagnostic method, supporting robust measurements of crucial markers of cardiac structure and function, myocardial perfusion and scar, as well as providing detailed insight into myocardial tissue. Accurate and informative diagnostic readouts can help with guiding therapy, monitoring disease progress and tailoring the response to treatment. In this article, the authors outline the evidence supporting the state-of-art applications based on cardiovascular magnetic resonance, allowing the clinician optimal use of this insightful diagnostic method in everyday clinical practice.
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Affiliation(s)
- Michalis Kolentinis
- Institute of Experimental and Translational Cardiovascular Imaging, German Centre for Cardiovascular Research (DZHK) Centre for Cardiovascular Imaging, Partner Site Rhein-Main, University Hospital Frankfurt Frankfurt, Germany
| | - Melanie Le
- Institute of Experimental and Translational Cardiovascular Imaging, German Centre for Cardiovascular Research (DZHK) Centre for Cardiovascular Imaging, Partner Site Rhein-Main, University Hospital Frankfurt Frankfurt, Germany
| | - Eike Nagel
- Institute of Experimental and Translational Cardiovascular Imaging, German Centre for Cardiovascular Research (DZHK) Centre for Cardiovascular Imaging, Partner Site Rhein-Main, University Hospital Frankfurt Frankfurt, Germany
| | - Valentina O Puntmann
- Institute of Experimental and Translational Cardiovascular Imaging, German Centre for Cardiovascular Research (DZHK) Centre for Cardiovascular Imaging, Partner Site Rhein-Main, University Hospital Frankfurt Frankfurt, Germany
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Zhao L, Feng S, Wang S, Fan M, Jin W, Li X, Wang C, Yang Y. Production of bioactive recombinant human myeloid-derived growth factor in Escherichia coli and its mechanism on vascular endothelial cell proliferation. J Cell Mol Med 2020; 24:1189-1199. [PMID: 31758636 PMCID: PMC6991672 DOI: 10.1111/jcmm.14602] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 07/25/2019] [Accepted: 07/26/2019] [Indexed: 12/22/2022] Open
Abstract
Myeloid-derived growth factor (MYDGF) is a novel protein secreted by bone marrow cells that features important physiological functions. In recent years, MYDGF has gained considerable interest due to their extensive beneficial effect on cardiac repair and protects cardiomyocytes from cell death. However, its precise molecular mechanisms have not been well elucidated. The purpose of this study was to produce sufficient amount of biologically active recombinant human (rh) MYDGF more economically and effectively by using in vitro molecular cloning techniques to study its clinical application. The prokaryotic expression system of Escherichia coli was established for the preparation of rhMYDGF. Finally, a large amount of high biologically active and purified form of recombinant protein was obtained. Moreover, we investigated the potential mechanism of rhMYDGF-mediated proliferation and survival in human coronary artery endothelial cells (HCAECs). Mechanistically, the results suggested that MAPK/STAT3 and the cyclin D1 signalling pathways are indispensable for rhMYDGF-mediated HCAEC proliferation and survival. Therefore, this study successfully established a preparation protocol for biologically active rhMYDGF and it may be a most economical way to produce high-quality active rhMYDGF for future clinical application.
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Affiliation(s)
- Longwei Zhao
- School of Life Science and TechnologyChina Pharmaceutical UniversityNanjingChina
- Center for New Drug Safety Evaluation and ResearchChina Pharmaceutical UniversityNanjingChina
| | - Shuang Feng
- Center for New Drug Safety Evaluation and ResearchChina Pharmaceutical UniversityNanjingChina
| | - Shen Wang
- School of Life Science and TechnologyChina Pharmaceutical UniversityNanjingChina
| | - Miaojuan Fan
- School of Pharmaceutical Sciences & Center for Structural BiologyWenzhou Medical UniversityWenzhouZhejiangChina
| | - Wei Jin
- School of Pharmaceutical Sciences & Center for Structural BiologyWenzhou Medical UniversityWenzhouZhejiangChina
| | - Xianjing Li
- School of Life Science and TechnologyChina Pharmaceutical UniversityNanjingChina
- Center for New Drug Safety Evaluation and ResearchChina Pharmaceutical UniversityNanjingChina
| | - Chen Wang
- School of Life Science and TechnologyChina Pharmaceutical UniversityNanjingChina
| | - Yong Yang
- School of Life Science and TechnologyChina Pharmaceutical UniversityNanjingChina
- Center for New Drug Safety Evaluation and ResearchChina Pharmaceutical UniversityNanjingChina
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Affiliation(s)
- Rong Bing
- Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
| | - Marc Richard Dweck
- Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
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Ahmed N. Cardioprotective mechanism of FTY720 in ischemia reperfusion injury. J Basic Clin Physiol Pharmacol 2019; 30:jbcpp-2019-0063. [PMID: 31469655 DOI: 10.1515/jbcpp-2019-0063] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 07/06/2019] [Indexed: 12/17/2022]
Abstract
Cardioprotection is a very challenging area in the field of cardiovascular sciences. Myocardial damage accounts for nearly 50% of injury due to reperfusion, yet there is no effective strategy to prevent this to reduce the burden of heart failure. During last couple of decades, by combining genetic and bimolecular studies, many new drugs have been developed to treat hypertension, heart failure, and cancer. The use of percutaneous coronary intervention has reduced the mortality and morbidity of acute coronary syndrome dramatically. However, there is no standard therapy available that can mitigate cardiac reperfusion injury, which contributes to up to half of myocardial infarcts. Literature shows that the activation of sphingosine receptors, which are G protein-coupled receptors, induces cardioprotection both in vitro and in vivo. The exact mechanism of this protection is not clear yet. In this review, we discuss the mechanism of ischemia reperfusion injury and the role of the FDA-approved sphingosine 1 phosphate drug fingolimod in cardioprotection.
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Affiliation(s)
- Naseer Ahmed
- The Aga Khan University, Medical College, Karachi, Pakistan, Phone: +92 21 3486 4465
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Puntmann VO, Carr-White G, Jabbour A, Yu CY, Gebker R, Kelle S, Rolf A, Zitzmann S, Peker E, D'Angelo T, Pathan F, Elen, Valbuena S, Hinojar R, Arendt C, Narula J, Herrmann E, Zeiher AM, Nagel E. Native T1 and ECV of Noninfarcted Myocardium and Outcome in Patients With Coronary Artery Disease. J Am Coll Cardiol 2019; 71:766-778. [PMID: 29447739 DOI: 10.1016/j.jacc.2017.12.020] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 12/07/2017] [Accepted: 12/07/2017] [Indexed: 02/06/2023]
Abstract
BACKGROUND Coronary artery disease (CAD) remains the major cause of cardiac morbidity and mortality worldwide, despite the advances in treatment with coronary revascularization and modern antiremodeling therapy. Risk stratification in CAD patients is primarily based on left ventricular volumes, ejection fraction (LVEF), risk scores, and the presence and extent of late gadolinium enhancement (LGE). The prognostic role of T1 mapping in noninfarcted myocardium in CAD patients has not yet been determined. OBJECTIVES This study sought to examine prognostic significance of native T1 mapping of noninfarcted myocardium in patients with CAD. METHODS A prospective, observational, multicenter longitudinal study of consecutive patients undergoing routine cardiac magnetic resonance imaging with T1 mapping and LGE. The primary endpoint was all-cause mortality. Major adverse cardiocerebrovascular events (MACCE) (cardiac mortality, nonfatal acute coronary syndrome, stroke, and appropriate device discharge) are also reported. RESULTS A total of 34 deaths and 71 MACCE (n = 665, males n = 424, median age [interquartile range] 57 [22] years; 64%; median follow-up period of 17 [11] months) were observed. Native T1 and extracellular volume were univariate predictors of outcome. Native T1 and LGE were stronger predictors of survival and MACCE compared with extracellular volume, LVEF, cardiac volumes, and clinical scores (p < 0.001). Native T1 of noninfarcted myocardium was the sole independent predictor of all-cause mortality (chi-square = 21.7; p < 0.001), which was accentuated in the absence of LGE or LVEF ≤35%. For MACCE, native T1 and LGE extent were joint independent predictors (chi-square = 25.6; p < 0.001). CONCLUSIONS Characterization of noninfarcted myocardium by native T1 is an important predictor of outcome in CAD patients, over and above the traditional risk stratifiers. The current study's results provide a basis for a novel risk stratification model in CAD based on a complementary assessment of noninfarcted myocardium and post-infarction scar, by native T1 mapping and LGE, respectively.
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Affiliation(s)
- Valentina O Puntmann
- Institute of Experimental and Translational Cardiac Imaging, DZHK Centre for Cardiovascular Imaging, Goethe University Frankfurt, Frankfurt am Main, Germany; Department of Cardiovascular Services, Guy's and St. Thomas' NHS Trust, London, United Kingdom; Department of Cardiology, University Hospital Frankfurt, Frankfurt-am Main, Germany.
| | - Gerry Carr-White
- Department of Cardiovascular Services, Guy's and St. Thomas' NHS Trust, London, United Kingdom; King's College Hospital NHS Trust, Denmark Hill, London, United Kingdom
| | - Andrew Jabbour
- Department of Cardiology, St. Vincent's University, Sydney, New South Wales, Australia
| | - Chung-Yao Yu
- Department of Cardiology, St. Vincent's University, Sydney, New South Wales, Australia
| | - Rolf Gebker
- Department of Cardiology, German Heart Institute Berlin, Berlin, Germany
| | - Sebastian Kelle
- Department of Cardiology, German Heart Institute Berlin, Berlin, Germany
| | - Andreas Rolf
- Department of Cardiology, Kerckhoff Hospital, University Giessen, Bad Nauheim, Germany
| | - Sabine Zitzmann
- Department of Cardiology, Kerckhoff Hospital, University Giessen, Bad Nauheim, Germany
| | - Elif Peker
- Institute of Experimental and Translational Cardiac Imaging, DZHK Centre for Cardiovascular Imaging, Goethe University Frankfurt, Frankfurt am Main, Germany; Department of Radiology, Ankara University Hospital, Ankara, Turkey
| | - Tommaso D'Angelo
- Institute of Experimental and Translational Cardiac Imaging, DZHK Centre for Cardiovascular Imaging, Goethe University Frankfurt, Frankfurt am Main, Germany; Department of Biomedical Sciences and Morphological and Functional Imaging, G. Martino University Hospital Messina, Messina, Italy
| | - Faraz Pathan
- Institute of Experimental and Translational Cardiac Imaging, DZHK Centre for Cardiovascular Imaging, Goethe University Frankfurt, Frankfurt am Main, Germany; Department of Cardiovascular Imaging, Menzies Institute for Medical Research, Hobart Tasmania, Australia
| | - Elen
- Institute of Experimental and Translational Cardiac Imaging, DZHK Centre for Cardiovascular Imaging, Goethe University Frankfurt, Frankfurt am Main, Germany; Department of Cardiology, University Hospital Jakarta, Jakarta, Indonesia
| | - Silvia Valbuena
- Institute of Experimental and Translational Cardiac Imaging, DZHK Centre for Cardiovascular Imaging, Goethe University Frankfurt, Frankfurt am Main, Germany; Department of Cardiology, University Hospital La Paz, Madrid, Spain
| | - Rocio Hinojar
- Institute of Experimental and Translational Cardiac Imaging, DZHK Centre for Cardiovascular Imaging, Goethe University Frankfurt, Frankfurt am Main, Germany; Department of Cardiology, University Hospital Ramón y Cajal, Madrid, Spain
| | - Christophe Arendt
- Institute of Experimental and Translational Cardiac Imaging, DZHK Centre for Cardiovascular Imaging, Goethe University Frankfurt, Frankfurt am Main, Germany; Department of Radiology, University Hospital Frankfurt, Frankfurt-am Main, Germany
| | - Jagat Narula
- Department of Cardiology, Mount Sinai School of Medicine, New York, New York
| | - Eva Herrmann
- DZHK Institute of Biostatistics and Mathematical Modelling at Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Andreas M Zeiher
- Department of Cardiology, University Hospital Frankfurt, Frankfurt-am Main, Germany
| | - Eike Nagel
- Institute of Experimental and Translational Cardiac Imaging, DZHK Centre for Cardiovascular Imaging, Goethe University Frankfurt, Frankfurt am Main, Germany; Department of Cardiovascular Services, Guy's and St. Thomas' NHS Trust, London, United Kingdom; Department of Cardiology, University Hospital Frankfurt, Frankfurt-am Main, Germany; Department of Radiology, University Hospital Frankfurt, Frankfurt-am Main, Germany
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Nordlund D, Engblom H, Bonnet JL, Hansen HS, Atar D, Erlinge D, Ekelund U, Heiberg E, Carlsson M, Arheden H. Gender but not diabetes, hypertension or smoking affects infarct evolution in ST-elevation myocardial infarction patients - data from the CHILL-MI, MITOCARE and SOCCER trials. BMC Cardiovasc Disord 2019; 19:161. [PMID: 31269907 PMCID: PMC6610840 DOI: 10.1186/s12872-019-1139-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 06/24/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Infarct evolution rate and response to acute reperfusion therapy may differ between patients, which is important to consider for accurate management and treatment of patients with ST-elevation myocardial infarction (STEMI). The aim of this study was therefore to investigate the association of infarct size and myocardial salvage with gender, smoking status, presence of diabetes or history of hypertension in a cohort of STEMI-patients. METHODS Patients (n = 301) with first-time STEMI from the three recent multi-center trials (CHILL-MI, MITOCARE and SOCCER) underwent cardiac magnetic resonance (CMR) imaging to determine myocardium at risk (MaR) and infarct size (IS). Myocardial salvage index (MSI) was calculated as MSI = 1-IS/MaR. Pain to balloon time, culprit vessel, trial treatments, age, TIMI grade flow and collateral flow by Rentrop grading were included as explanatory variables in the statistical model. RESULTS Women (n = 66) had significantly smaller MaR (mean difference: 5.0 ± 1.5% of left ventricle (LV), p < 0.01), smaller IS (mean difference: 5.1 ± 1.4% of LV, p = 0.03), and larger MSI (mean difference: 9.6 ± 2.8% of LV, p < 0.01) compared to men (n = 238). These differences remained significant when adjusting for other explanatory variables. There were no significant effects on MaR, IS or MSI for diabetes, hypertension or smoking. CONCLUSIONS Female gender is associated with higher myocardial salvage and smaller infarct size suggesting a pathophysiological difference in infarct evolution between men and women.
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Affiliation(s)
- David Nordlund
- Department of Clinical Physiology, Clinical Sciences, Lund University, Lund, Sweden
| | - Henrik Engblom
- Department of Clinical Physiology, Clinical Sciences, Lund University, Lund, Sweden
| | - Jean-Louis Bonnet
- Assistance Publique Hôpitaux de Marseille, Hôpital La Timone, Marseille, France
| | | | - Dan Atar
- Department of Cardiology B, Oslo University Hospital Ullevål, and Faculty of Medicine, University of Oslo, Oslo, Norway
| | - David Erlinge
- Department of Cardiology, Clinical Sciences, Lund University, Lund, Sweden
| | - Ulf Ekelund
- Department of Emergency Medicine, Clinical Sciences, Lund University, Lund, Sweden
| | - Einar Heiberg
- Department of Clinical Physiology, Clinical Sciences, Lund University, Lund, Sweden.,Department of Biomedical Engineering, Faculty of Engineering, Lund University, Lund, Sweden
| | - Marcus Carlsson
- Department of Clinical Physiology, Clinical Sciences, Lund University, Lund, Sweden
| | - Håkan Arheden
- Department of Clinical Physiology, Clinical Sciences, Lund University, Lund, Sweden.
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Nelson T, Garg P, Clayton RH, Lee J. The Role of Cardiac MRI in the Management of Ventricular Arrhythmias in Ischaemic and Non-ischaemic Dilated Cardiomyopathy. Arrhythm Electrophysiol Rev 2019; 8:191-201. [PMID: 31463057 PMCID: PMC6702467 DOI: 10.15420/aer.2019.5.1] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 04/25/2019] [Indexed: 02/07/2023] Open
Abstract
Ventricular tachycardia (VT) and VF account for the majority of sudden cardiac deaths worldwide. Treatments for VT/VF include anti-arrhythmic drugs, ICDs and catheter ablation, but these treatments vary in effectiveness and carry substantial risks and/or expense. Current methods of selecting patients for ICD implantation are imprecise and fail to identify some at-risk patients, while leading to others being overtreated. In this article, the authors discuss the current role and future direction of cardiac MRI (CMRI) in refining diagnosis and personalising ventricular arrhythmia management. The capability of CMRI with gadolinium contrast delayed-enhancement patterns and, more recently, T1 mapping to determine the aetiology of patients presenting with heart failure is well established. Although CMRI imaging in patients with ICDs can be challenging, recent technical developments have started to overcome this. CMRI can contribute to risk stratification, with precise and reproducible assessment of ejection fraction, quantification of scar and 'border zone' volumes, and other indices. Detailed tissue characterisation has begun to enable creation of personalised computer models to predict an individual patient's arrhythmia risk. When patients require VT ablation, a substrate-based approach is frequently employed as haemodynamic instability may limit electrophysiological activation mapping. Beyond accurate localisation of substrate, CMRI could be used to predict the location of re-entrant circuits within the scar to guide ablation.
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Affiliation(s)
- Tom Nelson
- Sheffield Teaching Hospitals NHS Foundation TrustSheffield, UK
- Department of Immunity, Infection and Cardiovascular Disease, University of SheffieldSheffield, UK
| | - Pankaj Garg
- Sheffield Teaching Hospitals NHS Foundation TrustSheffield, UK
- Department of Immunity, Infection and Cardiovascular Disease, University of SheffieldSheffield, UK
| | - Richard H Clayton
- INSIGNEO Institute for In-Silico Medicine, University of SheffieldSheffield, UK
- Department of Computer Science, University of SheffieldSheffield, UK
| | - Justin Lee
- Sheffield Teaching Hospitals NHS Foundation TrustSheffield, UK
- Department of Immunity, Infection and Cardiovascular Disease, University of SheffieldSheffield, UK
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Santos-Gallego CG, Requena-Ibanez JA, San Antonio R, Ishikawa K, Watanabe S, Picatoste B, Flores E, Garcia-Ropero A, Sanz J, Hajjar RJ, Fuster V, Badimon JJ. Empagliflozin Ameliorates Adverse Left Ventricular Remodeling in Nondiabetic Heart Failure by Enhancing Myocardial Energetics. J Am Coll Cardiol 2019; 73:1931-1944. [DOI: 10.1016/j.jacc.2019.01.056] [Citation(s) in RCA: 391] [Impact Index Per Article: 78.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 01/11/2019] [Accepted: 01/14/2019] [Indexed: 01/22/2023]
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Foley JRJ, Broadbent DA, Fent GJ, Garg P, Brown LAE, Chew PG, Dobson LE, Swoboda PP, Plein S, Higgins DM, Greenwood JP. Clinical evaluation of two dark blood methods of late gadolinium quantification of ischemic scar. J Magn Reson Imaging 2019; 50:146-152. [PMID: 30604492 DOI: 10.1002/jmri.26613] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 11/25/2018] [Accepted: 11/26/2018] [Indexed: 11/07/2022] Open
Abstract
BACKGROUND Late gadolinium enhancement (LGE) imaging was validated for diagnosis and quantification of myocardial infarction (MI). Despite good contrast between scar and normal myocardium, contrast between blood pool and myocardial scar can be limited. Dark blood LGE sequences attempt to overcome this issue. PURPOSE To evaluate T1 rho (T1 ρ)-prepared dark blood sequence and compare to blood nulled (BN) phase sensitive inversion recovery (PSIR) and standard myocardium nulled (MN) PSIR for detection and quantification of scar. STUDY TYPE Prospective. POPULATION Thirty patients with prior MI. FIELD STRENGTH/SEQUENCE Patients underwent identical 1.5 T MRI protocols. Following routine LGE imaging, a slice with scar, remote myocardium, and blood pool was selected. PSIR LGE was repeated with inversion time set to MN, to BN, and T1 ρ FIDDLE (flow-independent dark-blood delayed enhancement) in random order. ASSESSMENT Three observers. Qualitative assessment of confidence scores in scar detection and degree of transmurality. Quantitative assessment of myocardial scar mass (grams), and contrast-to-noise ratio (CNR) measurements between scar, blood pool, and myocardium. STATISTICAL TESTS Repeated-measures analysis of variance (ANOVA) with Bonferroni correction, coefficient of variation, and the Cohen κ statistic. RESULTS CNRscar-blood was significantly increased for both BN (27.1 ± 10.4) and T1 ρ (30.2 ± 15.1) compared with MN (15.3 ± 8.4 P < 0.001 for both sequences). There was no significant difference in CNRscar-myo between BN (55.9 ± 17.3) and MN (51.1 ± 17.8 P = 0.512); both had significantly higher CNRscar-myo compared with the T1 ρ (42.6 ± 16.9 P = 0.007 and P = 0.014, respectively). No significant difference in scar size between LGE methods: MN (2.28 ± 1.58 g) BN (2.16 ± 1.57 g) and T1 ρ (2.29 ± 2.5 g). Confidence scores were significantly higher for BN (3.87 ± 0.346) compared with MN (3.1 ± 0.76 P < 0.001) and T1 ρ (3.20 ± 0.71 P < 0.001). DATA CONCLUSION PSIR with inversion time (TI) set for blood nulling and the T1 ρ LGE sequence demonstrated significantly higher scar to blood CNR compared with routine MN. PSIR with TI set for blood nulling demonstrated significantly higher reader confidence scores compared with routine MN and T1 ρ LGE, suggesting routine adoption of a BN PSIR approach might be appropriate for LGE imaging. LEVEL OF EVIDENCE 2 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2019;50:146-152.
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Affiliation(s)
- James R J Foley
- Multidisciplinary Cardiovascular Research Centre (MCRC) & Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
| | - David A Broadbent
- Multidisciplinary Cardiovascular Research Centre (MCRC) & Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK.,Medical Physics and Engineering, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - Graham J Fent
- Multidisciplinary Cardiovascular Research Centre (MCRC) & Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
| | - Pankaj Garg
- Multidisciplinary Cardiovascular Research Centre (MCRC) & Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
| | - Louise A E Brown
- Multidisciplinary Cardiovascular Research Centre (MCRC) & Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
| | - Pei G Chew
- Multidisciplinary Cardiovascular Research Centre (MCRC) & Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
| | - Laura E Dobson
- Multidisciplinary Cardiovascular Research Centre (MCRC) & Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
| | - Peter P Swoboda
- Multidisciplinary Cardiovascular Research Centre (MCRC) & Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
| | - Sven Plein
- Multidisciplinary Cardiovascular Research Centre (MCRC) & Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
| | | | - John P Greenwood
- Multidisciplinary Cardiovascular Research Centre (MCRC) & Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
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Mangion K, Carrick D, Carberry J, Mahrous A, McComb C, Oldroyd KG, Eteiba H, Lindsay M, McEntegart M, Hood S, Petrie MC, Watkins S, Davie A, Zhong X, Epstein FH, Haig CE, Berry C. Circumferential Strain Predicts Major Adverse Cardiovascular Events Following an Acute ST-Segment-Elevation Myocardial Infarction. Radiology 2018; 290:329-337. [PMID: 30457480 DOI: 10.1148/radiol.2018181253] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Purpose To investigate the prognostic value of circumferential left ventricular (LV) strain measured by using cardiac MRI for prediction of major adverse cardiac events (MACE) following an acute ST-segment-elevation myocardial infarction (STEMI). Materials and Methods Participants with acute STEMI were prospectively enrolled from May 11, 2011, to November 22, 2012. Cardiac MRI was performed at 1.5 T during the index hospitalization. Displacement encoding with stimulated echoes (DENSE) and feature tracking of cine cardiac MRI was used to assess circumferential LV strain. MACE that occurred after discharge were independently assessed by cardiologists blinded to the baseline observations. Results A total of 259 participants (mean age, 58 years ± 11 [standard deviation]; 198 men [mean age, 58 years ± 11] and 61 women [mean age, 58 years ± 12]) underwent cardiac MRI 2.2 days ± 1.9 after STEMI. Average infarct size was 18% ± 13 of LV mass and circumferential strain was -13% ± 3 (DENSE method) and -24% ± 7 (feature- tracking method). Fifty-one percent (131 of 259 participants) had presence of microvascular obstruction. During a median follow-up period of 4 years, 8% (21 of 259) experienced MACE. Area under the curve (AUC) for DENSE was different from that of feature tracking (AUC, 0.76 vs 0.62; P = .03). AUC for DENSE was similar to that of initial infarct size (P = .06) and extent of microvascular obstruction (P = .08). DENSE-derived strain provided incremental prognostic benefit over infarct size for prediction of MACE (hazard ratio, 1.3; P < .01). Conclusion Circumferential strain has independent prognostic importance in study participants with acute ST-segment-elevation myocardial infarction. Published under a CC BY 4.0 license. Online supplemental material is available for this article. See also the editorial by Kramer in this issue.
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Affiliation(s)
- Kenneth Mangion
- From the British Heart Foundation Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences (K.M., D.C., J.C., C.M., M.C.P., C.B.), and Robertson Centre for Biostatistics (C.E.H.), University of Glasgow, 126 University Place, Glasgow G12 8TA, Scotland; West of Scotland Heart and Lung Centre, Golden Jubilee National Hospital, Clydebank, Scotland (K.M., D.C., A.M., K.G.O., H.E., M.L., M.M., S.H., M.C.P., S.W., A.D., C.B.); Department of Clinical Physics, NHS Greater Glasgow and Clyde, Glasgow, Scotland (C.M.); Department of MR R&D Collaborations, Siemens Healthcare, Atlanta, Ga (X.Z.); and Department of Biomedical Engineering, University of Virginia, Charlottesville, Va (F.H.E.)
| | - David Carrick
- From the British Heart Foundation Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences (K.M., D.C., J.C., C.M., M.C.P., C.B.), and Robertson Centre for Biostatistics (C.E.H.), University of Glasgow, 126 University Place, Glasgow G12 8TA, Scotland; West of Scotland Heart and Lung Centre, Golden Jubilee National Hospital, Clydebank, Scotland (K.M., D.C., A.M., K.G.O., H.E., M.L., M.M., S.H., M.C.P., S.W., A.D., C.B.); Department of Clinical Physics, NHS Greater Glasgow and Clyde, Glasgow, Scotland (C.M.); Department of MR R&D Collaborations, Siemens Healthcare, Atlanta, Ga (X.Z.); and Department of Biomedical Engineering, University of Virginia, Charlottesville, Va (F.H.E.)
| | - Jaclyn Carberry
- From the British Heart Foundation Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences (K.M., D.C., J.C., C.M., M.C.P., C.B.), and Robertson Centre for Biostatistics (C.E.H.), University of Glasgow, 126 University Place, Glasgow G12 8TA, Scotland; West of Scotland Heart and Lung Centre, Golden Jubilee National Hospital, Clydebank, Scotland (K.M., D.C., A.M., K.G.O., H.E., M.L., M.M., S.H., M.C.P., S.W., A.D., C.B.); Department of Clinical Physics, NHS Greater Glasgow and Clyde, Glasgow, Scotland (C.M.); Department of MR R&D Collaborations, Siemens Healthcare, Atlanta, Ga (X.Z.); and Department of Biomedical Engineering, University of Virginia, Charlottesville, Va (F.H.E.)
| | - Ahmed Mahrous
- From the British Heart Foundation Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences (K.M., D.C., J.C., C.M., M.C.P., C.B.), and Robertson Centre for Biostatistics (C.E.H.), University of Glasgow, 126 University Place, Glasgow G12 8TA, Scotland; West of Scotland Heart and Lung Centre, Golden Jubilee National Hospital, Clydebank, Scotland (K.M., D.C., A.M., K.G.O., H.E., M.L., M.M., S.H., M.C.P., S.W., A.D., C.B.); Department of Clinical Physics, NHS Greater Glasgow and Clyde, Glasgow, Scotland (C.M.); Department of MR R&D Collaborations, Siemens Healthcare, Atlanta, Ga (X.Z.); and Department of Biomedical Engineering, University of Virginia, Charlottesville, Va (F.H.E.)
| | - Christie McComb
- From the British Heart Foundation Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences (K.M., D.C., J.C., C.M., M.C.P., C.B.), and Robertson Centre for Biostatistics (C.E.H.), University of Glasgow, 126 University Place, Glasgow G12 8TA, Scotland; West of Scotland Heart and Lung Centre, Golden Jubilee National Hospital, Clydebank, Scotland (K.M., D.C., A.M., K.G.O., H.E., M.L., M.M., S.H., M.C.P., S.W., A.D., C.B.); Department of Clinical Physics, NHS Greater Glasgow and Clyde, Glasgow, Scotland (C.M.); Department of MR R&D Collaborations, Siemens Healthcare, Atlanta, Ga (X.Z.); and Department of Biomedical Engineering, University of Virginia, Charlottesville, Va (F.H.E.)
| | - Keith G Oldroyd
- From the British Heart Foundation Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences (K.M., D.C., J.C., C.M., M.C.P., C.B.), and Robertson Centre for Biostatistics (C.E.H.), University of Glasgow, 126 University Place, Glasgow G12 8TA, Scotland; West of Scotland Heart and Lung Centre, Golden Jubilee National Hospital, Clydebank, Scotland (K.M., D.C., A.M., K.G.O., H.E., M.L., M.M., S.H., M.C.P., S.W., A.D., C.B.); Department of Clinical Physics, NHS Greater Glasgow and Clyde, Glasgow, Scotland (C.M.); Department of MR R&D Collaborations, Siemens Healthcare, Atlanta, Ga (X.Z.); and Department of Biomedical Engineering, University of Virginia, Charlottesville, Va (F.H.E.)
| | - Hany Eteiba
- From the British Heart Foundation Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences (K.M., D.C., J.C., C.M., M.C.P., C.B.), and Robertson Centre for Biostatistics (C.E.H.), University of Glasgow, 126 University Place, Glasgow G12 8TA, Scotland; West of Scotland Heart and Lung Centre, Golden Jubilee National Hospital, Clydebank, Scotland (K.M., D.C., A.M., K.G.O., H.E., M.L., M.M., S.H., M.C.P., S.W., A.D., C.B.); Department of Clinical Physics, NHS Greater Glasgow and Clyde, Glasgow, Scotland (C.M.); Department of MR R&D Collaborations, Siemens Healthcare, Atlanta, Ga (X.Z.); and Department of Biomedical Engineering, University of Virginia, Charlottesville, Va (F.H.E.)
| | - Mitchell Lindsay
- From the British Heart Foundation Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences (K.M., D.C., J.C., C.M., M.C.P., C.B.), and Robertson Centre for Biostatistics (C.E.H.), University of Glasgow, 126 University Place, Glasgow G12 8TA, Scotland; West of Scotland Heart and Lung Centre, Golden Jubilee National Hospital, Clydebank, Scotland (K.M., D.C., A.M., K.G.O., H.E., M.L., M.M., S.H., M.C.P., S.W., A.D., C.B.); Department of Clinical Physics, NHS Greater Glasgow and Clyde, Glasgow, Scotland (C.M.); Department of MR R&D Collaborations, Siemens Healthcare, Atlanta, Ga (X.Z.); and Department of Biomedical Engineering, University of Virginia, Charlottesville, Va (F.H.E.)
| | - Margaret McEntegart
- From the British Heart Foundation Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences (K.M., D.C., J.C., C.M., M.C.P., C.B.), and Robertson Centre for Biostatistics (C.E.H.), University of Glasgow, 126 University Place, Glasgow G12 8TA, Scotland; West of Scotland Heart and Lung Centre, Golden Jubilee National Hospital, Clydebank, Scotland (K.M., D.C., A.M., K.G.O., H.E., M.L., M.M., S.H., M.C.P., S.W., A.D., C.B.); Department of Clinical Physics, NHS Greater Glasgow and Clyde, Glasgow, Scotland (C.M.); Department of MR R&D Collaborations, Siemens Healthcare, Atlanta, Ga (X.Z.); and Department of Biomedical Engineering, University of Virginia, Charlottesville, Va (F.H.E.)
| | - Stuart Hood
- From the British Heart Foundation Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences (K.M., D.C., J.C., C.M., M.C.P., C.B.), and Robertson Centre for Biostatistics (C.E.H.), University of Glasgow, 126 University Place, Glasgow G12 8TA, Scotland; West of Scotland Heart and Lung Centre, Golden Jubilee National Hospital, Clydebank, Scotland (K.M., D.C., A.M., K.G.O., H.E., M.L., M.M., S.H., M.C.P., S.W., A.D., C.B.); Department of Clinical Physics, NHS Greater Glasgow and Clyde, Glasgow, Scotland (C.M.); Department of MR R&D Collaborations, Siemens Healthcare, Atlanta, Ga (X.Z.); and Department of Biomedical Engineering, University of Virginia, Charlottesville, Va (F.H.E.)
| | - Mark C Petrie
- From the British Heart Foundation Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences (K.M., D.C., J.C., C.M., M.C.P., C.B.), and Robertson Centre for Biostatistics (C.E.H.), University of Glasgow, 126 University Place, Glasgow G12 8TA, Scotland; West of Scotland Heart and Lung Centre, Golden Jubilee National Hospital, Clydebank, Scotland (K.M., D.C., A.M., K.G.O., H.E., M.L., M.M., S.H., M.C.P., S.W., A.D., C.B.); Department of Clinical Physics, NHS Greater Glasgow and Clyde, Glasgow, Scotland (C.M.); Department of MR R&D Collaborations, Siemens Healthcare, Atlanta, Ga (X.Z.); and Department of Biomedical Engineering, University of Virginia, Charlottesville, Va (F.H.E.)
| | - Stuart Watkins
- From the British Heart Foundation Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences (K.M., D.C., J.C., C.M., M.C.P., C.B.), and Robertson Centre for Biostatistics (C.E.H.), University of Glasgow, 126 University Place, Glasgow G12 8TA, Scotland; West of Scotland Heart and Lung Centre, Golden Jubilee National Hospital, Clydebank, Scotland (K.M., D.C., A.M., K.G.O., H.E., M.L., M.M., S.H., M.C.P., S.W., A.D., C.B.); Department of Clinical Physics, NHS Greater Glasgow and Clyde, Glasgow, Scotland (C.M.); Department of MR R&D Collaborations, Siemens Healthcare, Atlanta, Ga (X.Z.); and Department of Biomedical Engineering, University of Virginia, Charlottesville, Va (F.H.E.)
| | - Andrew Davie
- From the British Heart Foundation Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences (K.M., D.C., J.C., C.M., M.C.P., C.B.), and Robertson Centre for Biostatistics (C.E.H.), University of Glasgow, 126 University Place, Glasgow G12 8TA, Scotland; West of Scotland Heart and Lung Centre, Golden Jubilee National Hospital, Clydebank, Scotland (K.M., D.C., A.M., K.G.O., H.E., M.L., M.M., S.H., M.C.P., S.W., A.D., C.B.); Department of Clinical Physics, NHS Greater Glasgow and Clyde, Glasgow, Scotland (C.M.); Department of MR R&D Collaborations, Siemens Healthcare, Atlanta, Ga (X.Z.); and Department of Biomedical Engineering, University of Virginia, Charlottesville, Va (F.H.E.)
| | - Xiaodong Zhong
- From the British Heart Foundation Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences (K.M., D.C., J.C., C.M., M.C.P., C.B.), and Robertson Centre for Biostatistics (C.E.H.), University of Glasgow, 126 University Place, Glasgow G12 8TA, Scotland; West of Scotland Heart and Lung Centre, Golden Jubilee National Hospital, Clydebank, Scotland (K.M., D.C., A.M., K.G.O., H.E., M.L., M.M., S.H., M.C.P., S.W., A.D., C.B.); Department of Clinical Physics, NHS Greater Glasgow and Clyde, Glasgow, Scotland (C.M.); Department of MR R&D Collaborations, Siemens Healthcare, Atlanta, Ga (X.Z.); and Department of Biomedical Engineering, University of Virginia, Charlottesville, Va (F.H.E.)
| | - Frederick H Epstein
- From the British Heart Foundation Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences (K.M., D.C., J.C., C.M., M.C.P., C.B.), and Robertson Centre for Biostatistics (C.E.H.), University of Glasgow, 126 University Place, Glasgow G12 8TA, Scotland; West of Scotland Heart and Lung Centre, Golden Jubilee National Hospital, Clydebank, Scotland (K.M., D.C., A.M., K.G.O., H.E., M.L., M.M., S.H., M.C.P., S.W., A.D., C.B.); Department of Clinical Physics, NHS Greater Glasgow and Clyde, Glasgow, Scotland (C.M.); Department of MR R&D Collaborations, Siemens Healthcare, Atlanta, Ga (X.Z.); and Department of Biomedical Engineering, University of Virginia, Charlottesville, Va (F.H.E.)
| | - Caroline E Haig
- From the British Heart Foundation Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences (K.M., D.C., J.C., C.M., M.C.P., C.B.), and Robertson Centre for Biostatistics (C.E.H.), University of Glasgow, 126 University Place, Glasgow G12 8TA, Scotland; West of Scotland Heart and Lung Centre, Golden Jubilee National Hospital, Clydebank, Scotland (K.M., D.C., A.M., K.G.O., H.E., M.L., M.M., S.H., M.C.P., S.W., A.D., C.B.); Department of Clinical Physics, NHS Greater Glasgow and Clyde, Glasgow, Scotland (C.M.); Department of MR R&D Collaborations, Siemens Healthcare, Atlanta, Ga (X.Z.); and Department of Biomedical Engineering, University of Virginia, Charlottesville, Va (F.H.E.)
| | - Colin Berry
- From the British Heart Foundation Glasgow Cardiovascular Research Centre, Institute of Cardiovascular and Medical Sciences (K.M., D.C., J.C., C.M., M.C.P., C.B.), and Robertson Centre for Biostatistics (C.E.H.), University of Glasgow, 126 University Place, Glasgow G12 8TA, Scotland; West of Scotland Heart and Lung Centre, Golden Jubilee National Hospital, Clydebank, Scotland (K.M., D.C., A.M., K.G.O., H.E., M.L., M.M., S.H., M.C.P., S.W., A.D., C.B.); Department of Clinical Physics, NHS Greater Glasgow and Clyde, Glasgow, Scotland (C.M.); Department of MR R&D Collaborations, Siemens Healthcare, Atlanta, Ga (X.Z.); and Department of Biomedical Engineering, University of Virginia, Charlottesville, Va (F.H.E.)
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Development and testing of a deep learning-based strategy for scar segmentation on CMR-LGE images. MAGNETIC RESONANCE MATERIALS IN PHYSICS BIOLOGY AND MEDICINE 2018; 32:187-195. [PMID: 30460430 DOI: 10.1007/s10334-018-0718-4] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 11/01/2018] [Accepted: 11/08/2018] [Indexed: 02/03/2023]
Abstract
OBJECTIVE The aim of this paper is to investigate the use of fully convolutional neural networks (FCNNs) to segment scar tissue in the left ventricle from cardiac magnetic resonance with late gadolinium enhancement (CMR-LGE) images. METHODS A successful FCNN in the literature (the ENet) was modified and trained to provide scar-tissue segmentation. Two segmentation protocols (Protocol 1 and Protocol 2) were investigated, the latter limiting the scar-segmentation search area to the left ventricular myocardial tissue region. CMR-LGE from 30 patients with ischemic-heart disease were retrospectively analyzed, for a total of 250 images, presenting high variability in terms of scar dimension and location. Segmentation results were assessed against manual scar-tissue tracing using one-patient-out cross validation. RESULTS Protocol 2 outperformed Protocol 1 significantly (p value < 0.05), with median sensitivity and Dice similarity coefficient equal to 88.07% [inter-quartile range (IQR) 18.84%] and 71.25% (IQR 31.82%), respectively. DISCUSSION Both segmentation protocols were able to detect scar tissues in the CMR-LGE images but higher performance was achieved when limiting the search area to the myocardial region. The findings of this paper represent an encouraging starting point for the use of FCNNs for the segmentation of nonviable scar tissue from CMR-LGE images.
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Puntmann VO, Valbuena S, Hinojar R, Petersen SE, Greenwood JP, Kramer CM, Kwong RY, McCann GP, Berry C, Nagel E. Society for Cardiovascular Magnetic Resonance (SCMR) expert consensus for CMR imaging endpoints in clinical research: part I - analytical validation and clinical qualification. J Cardiovasc Magn Reson 2018; 20:67. [PMID: 30231886 PMCID: PMC6147157 DOI: 10.1186/s12968-018-0484-5] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 08/05/2018] [Indexed: 02/07/2023] Open
Abstract
Cardiovascular disease remains a leading cause of morbidity and mortality globally. Changing natural history of the disease due to improved care of acute conditions and ageing population necessitates new strategies to tackle conditions which have more chronic and indolent course. These include an increased deployment of safe screening methods, life-long surveillance, and monitoring of both disease activity and tailored-treatment, by way of increasingly personalized medical care. Cardiovascular magnetic resonance (CMR) is a non-invasive, ionising radiation-free method, which can support a significant number of clinically relevant measurements and offers new opportunities to advance the state of art of diagnosis, prognosis and treatment. The objective of the SCMR Clinical Trial Taskforce was to summarizes the evidence to emphasize where currently CMR-guided clinical care can indeed translate into meaningful use and efficient deployment of resources results in meaningful and efficient use. The objective of the present initiative was to provide an appraisal of evidence on analytical validation, including the accuracy and precision, and clinical qualification of parameters in disease context, clarifying the strengths and weaknesses of the state of art, as well as the gaps in the current evidence This paper is complementary to the existing position papers on standardized acquisition and post-processing ensuring robustness and transferability for widespread use. Themed imaging-endpoint guidance on trial design to support drug-discovery or change in clinical practice (part II), will be presented in a follow-up paper in due course. As CMR continues to undergo rapid development, regular updates of the present recommendations are foreseen.
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Affiliation(s)
- Valentina O Puntmann
- Institute of Experimental and Translational Cardiovascular Imaging, Goethe University Hospital Frankfurt, Frankfurt, Germany
- Department of Cardiology, Goethe University Hospital Frankfurt, Frankfurt, Germany
| | - Silvia Valbuena
- Department of Cardiology, University Hospital La Paz, Madrid, Germany
| | - Rocio Hinojar
- Department of Cardiology, University Hospital Ramón y Cajal, Madrid, Spain
| | - Steffen E Petersen
- William Harvey Research Institute, Queen Mary University of London, Barts and the London NIHR Biomedical Research Centre at Barts, London, UK
| | - John P Greenwood
- Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
| | - Christopher M Kramer
- Department of Medicine (Cardiology) and Radiology, Cardiovascular Imaging Center, University of Virginia Health System, Charlottesville, Virginia, USA
| | - Raymond Y Kwong
- Cardiovascular Division, Department of Medicine, Brigham and Womens' Hospital, Boston, Massachusetts, USA
| | - Gerry P McCann
- Department of Cardiovascular Sciences, University of Leicester, Leicester, UK
- the NIHR Leicester Cardiovascular Biomedical Centre, University Hospitals of Leicester NHS Trust, Glenfield Hospital, Leicester, UK
| | - Colin Berry
- British Heart Foundation Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow, UK
- West of Scotland Heart and Lung Centre, Golden Jubilee National Hospital, Clydebank, UK
| | - Eike Nagel
- Institute of Experimental and Translational Cardiovascular Imaging, Goethe University Hospital Frankfurt, Frankfurt, Germany.
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Cardiac Magnetic Resonance in Stable Coronary Artery Disease: Added Prognostic Value to Conventional Risk Profiling. BIOMED RESEARCH INTERNATIONAL 2018; 2018:2806148. [PMID: 30035118 PMCID: PMC6032669 DOI: 10.1155/2018/2806148] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Accepted: 05/22/2018] [Indexed: 12/13/2022]
Abstract
Aims Cardiovascular magnetic resonance (CMR) permits a comprehensive evaluation of stable coronary artery disease (CAD). We sought to assess whether, in a large contemporaneous population receiving optimal medical therapy, CMR independently predicts prognosis beyond conventional cardiovascular risk factors (RF). Methods We performed a single centre, observational prospective study that enrolled 465 CAD patients (80% males; 63±11 years), optimally treated with ACE-inhibitors/ARB, aspirin, and statins (76-85%). Assessments included conventional evaluation (clinical history, atherosclerosis RF, electrocardiography, and echocardiography) and a comprehensive CMR with LV dimensions/function, late gadolinium enhancement (LGE), and stress perfusion CMR (SPCMR). Results During a median follow-up of 62 months (IQR 23-74) there were 50 deaths and 92 major adverse cardiovascular events (MACE). CMR variables improved multivariate model prediction power of mortality and MACE over traditional RF alone (F-test p<0.05 and p<0.001, respectively). LGE was an independent prognostic factor of mortality (hazard ratio [95% CI]: 3.4 [1.3−8.8]); moreover, LGE (3.3 [1.7−6.3]) and SPCMR (2.1 [1.4−3.2]) were the best predictors of MACE. Conclusion LGE is an independent noninvasive marker of mortality in the long term in patients with stable CAD and optimized medical therapy. Furthermore, LGE and SPCMR independently predict MACE beyond conventional risk stratification.
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Towards the Clinical Management of Cardiac Involvement in Systemic Inflammatory Conditions—a Central Role for CMR. CURRENT CARDIOVASCULAR IMAGING REPORTS 2018. [DOI: 10.1007/s12410-018-9451-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Stillman AE, Oudkerk M, Bluemke DA, de Boer MJ, Bremerich J, Garcia EV, Gutberlet M, van der Harst P, Hundley WG, Jerosch-Herold M, Kuijpers D, Kwong RY, Nagel E, Lerakis S, Oshinski J, Paul JF, Slart RHJA, Thourani V, Vliegenthart R, Wintersperger BJ. Imaging the myocardial ischemic cascade. Int J Cardiovasc Imaging 2018; 34:1249-1263. [PMID: 29556943 DOI: 10.1007/s10554-018-1330-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 03/05/2018] [Indexed: 01/25/2023]
Abstract
Non-invasive imaging plays a growing role in the diagnosis and management of ischemic heart disease from its earliest manifestations of endothelial dysfunction to myocardial infarction along the myocardial ischemic cascade. Experts representing the North American Society for Cardiovascular Imaging and the European Society of Cardiac Radiology have worked together to organize the role of non-invasive imaging along the framework of the ischemic cascade. The current status of non-invasive imaging for ischemic heart disease is reviewed along with the role of imaging for guiding surgical planning. The issue of cost effectiveness is also considered. Preclinical disease is primarily assessed through the coronary artery calcium score and used for risk assessment. Once the patient becomes symptomatic, other imaging tests including echocardiography, CCTA, SPECT, PET and CMR may be useful. CCTA appears to be a cost-effective gatekeeper. Post infarction CMR and PET are the preferred modalities. Imaging is increasingly used for surgical planning of patients who may require coronary artery bypass.
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Affiliation(s)
- Arthur E Stillman
- Department of Radiology and Imaging Sciences, Emory University, 1365 Clifton Rd NE, Atlanta, GA, 30322, USA.
| | - Matthijs Oudkerk
- Center of Medical Imaging, University Medical Center Groningen, Groningen, The Netherlands
| | - David A Bluemke
- Department of Radiology and Imaging Sciences, National Institute of Biomedical Imaging and Bioengineering, Bethesda, MD, USA
| | - Menko Jan de Boer
- Department of Cardiology, Radboud University Medical Center Nijmegen, Nijmegen, The Netherlands
| | - Jens Bremerich
- Department of Radiology, University of Basel Hospital, Basel, Switzerland
| | - Ernest V Garcia
- Department of Radiology and Imaging Sciences, Emory University, 1365 Clifton Rd NE, Atlanta, GA, 30322, USA
| | - Matthias Gutberlet
- Diagnostic and Interventional Radiology, University Hospital Leipzig, Leipzig, Germany
| | - Pim van der Harst
- Department of Genetics, University Medical Center Groningen, Groningen, The Netherlands
| | - W Gregory Hundley
- Departments of Internal Medicine & Radiology, Wake Forest University, Winston-Salem, NC, USA
| | | | - Dirkjan Kuijpers
- Department of Radiology, Haaglanden Medical Center, The Hague, The Netherlands
| | - Raymond Y Kwong
- Department of Cardiology, Brigham and Women's Hospital, Boston, MA, USA
| | - Eike Nagel
- Institute for Experimental and Translational Cardiovascular Imaging, DZHK Centre for Cardiovascular Imaging, University Hospital, Frankfurt/Main, Germany
| | | | - John Oshinski
- Department of Radiology and Imaging Sciences, Emory University, 1365 Clifton Rd NE, Atlanta, GA, 30322, USA
| | | | - Riemer H J A Slart
- Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Vinod Thourani
- Department of Cardiac Surgery, MedStar Heart and Vascular Institute, Georgetown University, Washington, DC, USA
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