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Muscogiuri E, van Assen M, Tessarin G, Razavi AC, Schoebinger M, Wels M, Gulsun MA, Sharma P, Fung GSK, De Cecco CN. Clinical Validation of a Deep Learning Algorithm for Automated Coronary Artery Disease Detection and Classification Using a Heterogeneous Multivendor Coronary Computed Tomography Angiography Data Set. J Thorac Imaging 2024:00005382-990000000-00144. [PMID: 39034758 DOI: 10.1097/rti.0000000000000798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/23/2024]
Abstract
PURPOSE We sought to clinically validate a fully automated deep learning (DL) algorithm for coronary artery disease (CAD) detection and classification in a heterogeneous multivendor cardiac computed tomography angiography data set. MATERIALS AND METHODS In this single-centre retrospective study, we included patients who underwent cardiac computed tomography angiography scans between 2010 and 2020 with scanners from 4 vendors (Siemens Healthineers, Philips, General Electrics, and Canon). Coronary Artery Disease-Reporting and Data System (CAD-RADS) classification was performed by a DL algorithm and by an expert reader (reader 1, R1), the gold standard. Variability analysis was performed with a second reader (reader 2, R2) and the radiologic reports on a subset of cases. Statistical analysis was performed stratifying patients according to the presence of CAD (CAD-RADS >0) and obstructive CAD (CAD-RADS ≥3). RESULTS Two hundred ninety-six patients (average age: 53.66 ± 13.65, 169 males) were enrolled. For the detection of CAD only, the DL algorithm showed sensitivity, specificity, accuracy, and area under the curve of 95.3%, 79.7%, 87.5%, and 87.5%, respectively. For the detection of obstructive CAD, the DL algorithm showed sensitivity, specificity, accuracy, and area under the curve of 89.4%, 92.8%, 92.2%, and 91.1%, respectively. The variability analysis for the detection of obstructive CAD showed an accuracy of 92.5% comparing the DL algorithm with R1, and 96.2% comparing R1 with R2 and radiology reports. The time of analysis was lower using the DL algorithm compared with R1 (P < 0.001). CONCLUSIONS The DL algorithm demonstrated robust performance and excellent agreement with the expert readers' analysis for the evaluation of CAD, which also corresponded with significantly reduced image analysis time.
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Affiliation(s)
- Emanuele Muscogiuri
- Division of Cardiothoracic Imaging, Department of Radiology and Imaging Sciences
- Department of Cardiology, Emory University Hospital, Emory Healthcare Inc., Atlanta, GA
| | - Marly van Assen
- Division of Cardiothoracic Imaging, Department of Radiology and Imaging Sciences
| | - Giovanni Tessarin
- Division of Cardiothoracic Imaging, Department of Radiology and Imaging Sciences
- Division of Thoracic Imaging, Department of Radiology, University Hospitals Leuven, Leuven, Belgium
- Department of Medicine-DIMED, Institute of Radiology, University of Padova, Padua
| | | | - Max Schoebinger
- Computed Tomography, Siemens Healthineers, Forchheim, Germany
| | - Michael Wels
- Computed Tomography, Siemens Healthineers, Forchheim, Germany
| | | | | | | | - Carlo N De Cecco
- Division of Cardiothoracic Imaging, Department of Radiology and Imaging Sciences
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Yu L, Yu Y, Li M, Ling R, Li Y, Wang A, Wang X, Song Y, Zhang X, Dong P, Zhan Y, Wu D, Zhang J. Deep learning reconstruction for coronary CT angiography in patients with origin anomaly, stent or bypass graft. LA RADIOLOGIA MEDICA 2024:10.1007/s11547-024-01846-3. [PMID: 39023665 DOI: 10.1007/s11547-024-01846-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Accepted: 07/01/2024] [Indexed: 07/20/2024]
Abstract
PURPOSE To develop and validate a deep learning (DL)-model for automatic reconstruction for coronary CT angiography (CCTA) in patients with origin anomaly, stent or bypass graft. MATERIAL AND METHODS In this retrospective study, a DL model for automatic CCTA reconstruction was developed with training and validation sets from 6063 and 1962 patients. The algorithm was evaluated on an independent external test set of 812 patients (357 with origin anomaly or revascularization, 455 without). The image quality of DL reconstruction and manual reconstruction (using dedicated cardiac reconstruction software provided by CT vendors) was compared using a 5-point scale. The successful reconstruction rates and post-processing time for two methods were recorded. RESULTS In the external test set, 812 patients (mean age, 64.0 ± 11.6, 100 with origin anomalies, 152 with stents, 105 with bypass grafts) were evaluated. The successful rates for automatic reconstruction were 100% (455/455), 97% (97/100), 100% (152/152), and 76.2% (80/105) in patients with native vessel, origin anomaly, stent, and bypass graft, respectively. The image quality scores were significantly higher for DL reconstruction than those for manual approach in all subgroups (4 vs. 3 for native vessel, 4 vs. 4 for origin anomaly, 4 vs. 3 for stent and 4 vs. 3 for bypass graft, all p < 0.001). The overall post-processing time was remarkably reduced for DL reconstruction compared to manual method (11 s vs. 465 s, p < 0.001). CONCLUSIONS The developed DL model enabled accurate automatic CCTA reconstruction of bypass graft, stent and origin anomaly. It significantly reduced post-processing time and improved clinical workflow.
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Affiliation(s)
- Lihua Yu
- Department of Radiology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, #85 Wujin Rd, Shanghai, 200080, China
| | - Yarong Yu
- Department of Radiology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, #85 Wujin Rd, Shanghai, 200080, China
| | - Meiling Li
- Department of Radiology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, #85 Wujin Rd, Shanghai, 200080, China
| | - Runjianya Ling
- Institute of Diagnostic and Interventional Radiology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, #600, Yishan Rd, Shanghai, China
| | - Yuehua Li
- Institute of Diagnostic and Interventional Radiology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, #600, Yishan Rd, Shanghai, China
| | - Ai Wang
- Department of Radiology, Shanghai General Hospital, Jiading Branch, #800, Huangjiahuayuan Rd, Shanghai, China
| | - Xifu Wang
- Department of Radiology, Shanghai General Hospital, Jiading Branch, #800, Huangjiahuayuan Rd, Shanghai, China
| | - Yanli Song
- Shanghai United Imaging Intelligence Co., Ltd, #2879 Longteng Ave, Shanghai, China
| | - Xiao Zhang
- School of Information Science and Technology, Northwest University, Xi'an, China
| | - Pei Dong
- Shanghai United Imaging Intelligence Co., Ltd, #2879 Longteng Ave, Shanghai, China
| | - Yiqiang Zhan
- Shanghai United Imaging Intelligence Co., Ltd, #2879 Longteng Ave, Shanghai, China
| | - Dijia Wu
- Shanghai United Imaging Intelligence Co., Ltd, #2879 Longteng Ave, Shanghai, China
| | - Jiayin Zhang
- Department of Radiology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, #85 Wujin Rd, Shanghai, 200080, China.
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Pan JA, Patel AR. The Role of Multimodality Imaging in Cardiomyopathy. Curr Cardiol Rep 2024; 26:689-703. [PMID: 38753290 PMCID: PMC11236518 DOI: 10.1007/s11886-024-02068-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/24/2024] [Indexed: 06/25/2024]
Abstract
PURPOSE OF REVIEW There has been increasing use of multimodality imaging in the evaluation of cardiomyopathies. RECENT FINDINGS Echocardiography, cardiac magnetic resonance (CMR), cardiac nuclear imaging, and cardiac computed tomography (CCT) play an important role in the diagnosis, risk stratification, and management of patients with cardiomyopathies. Echocardiography is essential in the initial assessment of suspected cardiomyopathy, but a multimodality approach can improve diagnostics and management. CMR allows for accurate measurement of volumes and function, and can easily detect unique pathologic structures. In addition, contrast imaging and parametric mapping enable the characterization of tissue features such as scar, edema, infiltration, and deposition. In non-ischemic cardiomyopathies, metabolic and molecular nuclear imaging is used to diagnose rare but life-threatening conditions such amyloidosis and sarcoidosis. There is an expanding use of CCT for planning electrophysiology procedures such as cardioversion, ablations, and device placement. Furthermore, CCT can evaluate for complications associated with advanced heart failure therapies such as cardiac transplant and mechanical support devices. Innovations in multimodality cardiac imaging should lead to increased volumes and better outcomes.
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Affiliation(s)
- Jonathan A Pan
- Cardiovascular Division, Department of Medicine, University of Virginia Health System, 1215 Lee Street, Box 800158, Charlottesville, VA, 22908, USA
| | - Amit R Patel
- Cardiovascular Division, Department of Medicine, University of Virginia Health System, 1215 Lee Street, Box 800158, Charlottesville, VA, 22908, USA.
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Larsen BS, Biering-Sørensen T, Olsen FJ. Ischemic stroke and the emerging role of left atrial function. Expert Rev Cardiovasc Ther 2024; 22:289-300. [PMID: 38943632 DOI: 10.1080/14779072.2024.2370814] [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: 02/11/2024] [Accepted: 06/18/2024] [Indexed: 07/01/2024]
Abstract
INTRODUCTION Ischemic stroke is a leading cause of morbidity and mortality worldwide. Emerging evidence suggests that left atrial (LA) dysfunction could play a role in the pathophysiology of ischemic stroke, as a possible contributor and as a predictive biomarker. AREAS COVERED This narrative review details the intricate relationship between LA function, atrial fibrillation (AF), and ischemic stroke. We discuss imaging techniques used to assess LA function, the mechanisms by which impaired LA function may contribute to stroke, and its potential as a prognostic marker of stroke. EXPERT OPINION There is a lack of evidence-based treatments of LA dysfunction in both primary and secondary stroke prevention. This is partly due to the lack of a practical clinical definition and unanswered questions concerning the clinical implications of LA dysfunction in patients without AF. Until such questions are resolved, addressing well-known cardiovascular risk factors, like hypertension and obesity, should be prioritized for preventing AF and ischemic stroke. These risk factors are closely tied to atrial remodeling, emphasizing the importance of targeting primary modifiable factors for preventing future morbidity and mortality.
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Affiliation(s)
- Bjørn Strøier Larsen
- Department of Cardiology, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark
- Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Tor Biering-Sørensen
- Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Cardiology, Copenhagen University Hospital - Herlev and Gentofte, Hellerup, Denmark
| | - Flemming Javier Olsen
- Department of Cardiology, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark
- Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Cardiology, Copenhagen University Hospital - Herlev and Gentofte, Hellerup, Denmark
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Bär S, Maaniitty T, Nabeta T, Bax JJ, Earls JP, Min JK, Saraste A, Knuuti J. Prognostic value of a novel artificial intelligence-based coronary CTA-derived ischemia algorithm among patients with normal or abnormal myocardial perfusion. J Cardiovasc Comput Tomogr 2024; 18:366-374. [PMID: 38664074 DOI: 10.1016/j.jcct.2024.04.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 04/11/2024] [Accepted: 04/11/2024] [Indexed: 07/03/2024]
Abstract
BACKGROUND Among patients with obstructive coronary artery disease (CAD) on coronary computed tomography angiography (CTA), downstream positron emission tomography (PET) perfusion imaging can be performed to assess the presence of myocardial ischemia. A novel artificial-intelligence-guided quantitative computed tomography ischemia algorithm (AI-QCTischemia) aims to predict ischemia directly from coronary CTA images. We aimed to study the prognostic value of AI-QCTischemia among patients with obstructive CAD on coronary CTA and normal or abnormal downstream PET perfusion. METHODS AI-QCTischemia was calculated by blinded analysts among patients from the retrospective coronary CTA cohort at Turku University Hospital, Finland, with obstructive CAD on initial visual reading (diameter stenosis ≥50%) being referred for downstream 15O-H2O-PET adenosine stress perfusion imaging. All coronary arteries with their side branches were assessed by AI-QCTischemia. Absolute stress myocardial blood flow ≤2.3 ml/g/min in ≥2 adjacent segments was considered abnormal. The primary endpoint was death, myocardial infarction, or unstable angina pectoris. The median follow-up was 6.2 [IQR 4.4-8.3] years. RESULTS 662 of 768 (86%) patients had conclusive AI-QCTischemia result. In patients with normal 15O-H2O-PET perfusion, an abnormal AI-QCTischemia result (n = 147/331) vs. normal AI-QCTischemia result (n = 184/331) was associated with a significantly higher crude and adjusted rates of the primary endpoint (adjusted HR 2.47, 95% CI 1.17-5.21, p = 0.018). This did not pertain to patients with abnormal 15O-H2O-PET perfusion (abnormal AI-QCTischemia result (n = 269/331) vs. normal AI-QCTischemia result (n = 62/331); adjusted HR 1.09, 95% CI 0.58-2.02, p = 0.794) (p-interaction = 0.039). CONCLUSION Among patients with obstructive CAD on coronary CTA referred for downstream 15O-H2O-PET perfusion imaging, AI-QCTischemia showed incremental prognostic value among patients with preserved perfusion by 15O-H2O-PET imaging, but not among those with reduced perfusion.
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Affiliation(s)
- Sarah Bär
- Turku PET Centre, Turku University Hospital and University of Turku, Turku, Finland; Department of Cardiology, Bern University Hospital Inselspital, Bern, Switzerland
| | - Teemu Maaniitty
- Turku PET Centre, Turku University Hospital and University of Turku, Turku, Finland; Department of Clinical Physiology, Nuclear Medicine, and PET, Turku University Hospital, Turku, Finland
| | - Takeru Nabeta
- Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Jeroen J Bax
- Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands
| | | | | | - Antti Saraste
- Turku PET Centre, Turku University Hospital and University of Turku, Turku, Finland; Heart Center, Turku University Hospital and University of Turku, Turku, Finland
| | - Juhani Knuuti
- Turku PET Centre, Turku University Hospital and University of Turku, Turku, Finland; Department of Clinical Physiology, Nuclear Medicine, and PET, Turku University Hospital, Turku, Finland.
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Christensen EW, Rula EY, Newhouse JH. Share of Diagnostic Imaging Interpretation: Radiology and Other Specialties. J Am Coll Radiol 2024:S1546-1440(24)00453-8. [PMID: 38944790 DOI: 10.1016/j.jacr.2024.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 05/02/2024] [Accepted: 05/15/2024] [Indexed: 07/01/2024]
Abstract
PURPOSE The aim of this study was to examine radiology's and other specialties' market shares for diagnostic imaging interpretation for Medicare fee-for-service claims by modality, body region, and place of service. METHODS In this cross-sectional study of Physician/Supplier Procedure Summary data for 2022, the authors examined the proportion of diagnostic imaging interpretation by specialty. All claims for CT, MR, nuclear medicine (NM), ultrasound, and radiography and fluoroscopy (XR) were included. Claims were aggregated into 52 specialty groups using Medicare specialty codes. The market share for each specialty group was computed by modality, body region, and place of service. RESULTS For Medicare fee-for-service beneficiaries, there were 122,851,716 imaging studies, of which 88,559,272 (72.1%) were interpreted by radiologists. This percentage varied by modality: 97.3% for CT, 91.0% for MR, 76.6% for XR, 50.9% for NM, and 33.9% for ultrasound. Radiologists interpreted a lower percentage of cardiac (67.6% for CT, 42.2% for MR, 11.8% for NM, and 0.4% for ultrasound) than noncardiac studies (97.6% for CT, 91.4% for MR, 95.6% for NM, and 53.0% for ultrasound). Among noncardiac studies, radiologists interpreted nearly all in the outpatient hospital, inpatient, and emergency department (99.5% for CT, 99.4% for MR, 98.9% for NM, 79.3% for ultrasound, and 97.9% for XR) compared with the office setting (84.4% for CT, 78.7% for MR, 85.4% for NM, 29.2% for ultrasound, and 43.1% for XR). CONCLUSIONS Radiologists perform the dominant share of CT and MR interpretation and more so for noncardiac imaging and imaging performed in outpatient hospital, inpatient, and emergency department places of service.
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Affiliation(s)
- Eric W Christensen
- Director, Economic and Health Services Research, Harvey L. Neiman Health Policy Institute, Reston, Virginia; University of Minnesota, St. Paul, Minnesota.
| | - Elizabeth Y Rula
- Executive Director, Harvey L. Neiman Health Policy Institute, Reston, Virginia
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Schaab JA, Candreva A, Rossi A, Markendorf S, Sager D, Messerli M, Pazhenkottil AP, Benz DC, Kaufmann PA, Buechel RR, Stähli BE, Giannopoulos AA. A simple coronary CT angiography-based jeopardy score for the identification of extensive coronary artery disease: Validation against invasive coronary angiography. Diagn Interv Imaging 2024; 105:151-158. [PMID: 38007373 DOI: 10.1016/j.diii.2023.11.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 11/03/2023] [Accepted: 11/08/2023] [Indexed: 11/27/2023]
Abstract
PURPOSE The invasive British Cardiovascular Intervention Society Jeopardy Score (iBCIS-JS) is a simple angiographic scoring system, enabling quantification of the extent of jeopardized myocardium related to clinically significant coronary artery disease (CAD). The purpose of this study was to develop and validate the coronary CT angiography-based BCIS-JS (CT-BCIS-JS) against the iBCIS-JS in patients with suspected or stable CAD. MATERIALS AND METHODS Patients who underwent coronary CT angiography followed by invasive coronary angiography, within 90 days were retrospectively included. CT-BCIS-JS and iBCIS-JS were calculated, with a score ≥ 6 indicating extensive CAD. Correlation between the CT-BCIS-JS and iBCIS-JS was searched for using Spearman's coefficient, and agreement with weighted Kappa (κ) analyses. RESULTS A total of 122 patients were included. There were 102 men and 20 women with a median age of 62 years (Q1, Q3: 54, 68; age range: 19-83 years). No differences in median CT-BCIS-JS (4; Q1, Q3: 0, 8) and median iBCIS-JS (4; Q1, Q3: 0, 8) were found (P = 0.18). Extensive CAD was identified in 53 (43.4%) and 52 (42.6%) patients using CT-BCIS-JS and iBCIS-JS, respectively (P = 0.88). CT-based and iBCIS-JS showed excellent correlation (r = 0.98; P < 0.001) and almost perfect agreement (κ = 0.93; 95% confidence interval: 0.90-0.97). Agreement for identification of an iBCIS-JS ≥ 6 was almost perfect (κ = 0.94; 95 % confidence interval: 0.87-0.99). CONCLUSION The CT-BCIS-JS represents a feasible, and accurate method for quantification of CAD, with capabilities not different from those of iBCIS-JS. It enables simple, non-invasive identification of patients with anatomically extensive CAD.
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Affiliation(s)
- Jan A Schaab
- Department of Nuclear Medicine, Cardiac Imaging, University Hospital Zurich, CH-8091 Zurich, Switzerland
| | - Alessandro Candreva
- Department of Cardiology, University Heart Center, University Hospital Zurich, CH-8091 Zurich, Switzerland
| | - Alexia Rossi
- Department of Nuclear Medicine, Cardiac Imaging, University Hospital Zurich, CH-8091 Zurich, Switzerland
| | - Susanne Markendorf
- Department of Nuclear Medicine, Cardiac Imaging, University Hospital Zurich, CH-8091 Zurich, Switzerland
| | - Dominik Sager
- Department of Nuclear Medicine, Cardiac Imaging, University Hospital Zurich, CH-8091 Zurich, Switzerland
| | - Michael Messerli
- Department of Nuclear Medicine, Cardiac Imaging, University Hospital Zurich, CH-8091 Zurich, Switzerland
| | - Aju P Pazhenkottil
- Department of Nuclear Medicine, Cardiac Imaging, University Hospital Zurich, CH-8091 Zurich, Switzerland; Department of Cardiology, University Heart Center, University Hospital Zurich, CH-8091 Zurich, Switzerland
| | - Dominik C Benz
- Department of Nuclear Medicine, Cardiac Imaging, University Hospital Zurich, CH-8091 Zurich, Switzerland; Department of Cardiology, University Heart Center, University Hospital Zurich, CH-8091 Zurich, Switzerland
| | - Philipp A Kaufmann
- Department of Nuclear Medicine, Cardiac Imaging, University Hospital Zurich, CH-8091 Zurich, Switzerland
| | - Ronny R Buechel
- Department of Nuclear Medicine, Cardiac Imaging, University Hospital Zurich, CH-8091 Zurich, Switzerland
| | - Barbara E Stähli
- Department of Cardiology, University Heart Center, University Hospital Zurich, CH-8091 Zurich, Switzerland
| | - Andreas A Giannopoulos
- Department of Nuclear Medicine, Cardiac Imaging, University Hospital Zurich, CH-8091 Zurich, Switzerland.
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Murayama M, Sugimori H, Yoshimura T, Kaga S, Shima H, Tsuneta S, Mukai A, Nagai Y, Yokoyama S, Nishino H, Nakamura J, Sato T, Tsujino I. Deep learning to assess right ventricular ejection fraction from two-dimensional echocardiograms in precapillary pulmonary hypertension. Echocardiography 2024; 41:e15812. [PMID: 38634241 DOI: 10.1111/echo.15812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 03/10/2024] [Accepted: 03/25/2024] [Indexed: 04/19/2024] Open
Abstract
BACKGROUND Precapillary pulmonary hypertension (PH) is characterized by a sustained increase in right ventricular (RV) afterload, impairing systolic function. Two-dimensional (2D) echocardiography is the most performed cardiac imaging tool to assess RV systolic function; however, an accurate evaluation requires expertise. We aimed to develop a fully automated deep learning (DL)-based tool to estimate the RV ejection fraction (RVEF) from 2D echocardiographic videos of apical four-chamber views in patients with precapillary PH. METHODS We identified 85 patients with suspected precapillary PH who underwent cardiac magnetic resonance imaging (MRI) and echocardiography. The data was divided into training (80%) and testing (20%) datasets, and a regression model was constructed using 3D-ResNet50. Accuracy was assessed using five-fold cross validation. RESULTS The DL model predicted the cardiac MRI-derived RVEF with a mean absolute error of 7.67%. The DL model identified severe RV systolic dysfunction (defined as cardiac MRI-derived RVEF < 37%) with an area under the curve (AUC) of .84, which was comparable to the AUC of RV fractional area change (FAC) and tricuspid annular plane systolic excursion (TAPSE) measured by experienced sonographers (.87 and .72, respectively). To detect mild RV systolic dysfunction (defined as RVEF ≤ 45%), the AUC from the DL-predicted RVEF also demonstrated a high discriminatory power of .87, comparable to that of FAC (.90), and significantly higher than that of TAPSE (.67). CONCLUSION The fully automated DL-based tool using 2D echocardiography could accurately estimate RVEF and exhibited a diagnostic performance for RV systolic dysfunction comparable to that of human readers.
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Affiliation(s)
- Michito Murayama
- Department of Medical Laboratory Science, Faculty of Health Sciences, Hokkaido University, Sapporo, Japan
- Diagnostic Center for Sonography, Hokkaido University Hospital, Sapporo, Japan
| | - Hiroyuki Sugimori
- Department of Biomedical Science and Engineering, Faculty of Health Sciences, Hokkaido University, Sapporo, Japan
- Clinical AI Human Resources Development Program, Faculty of Medicine, Hokkaido University, Sapporo, Japan
- Global Center for Biomedical Science and Engineering, Faculty of Medicine, Hokkaido University, Sapporo, Japan
| | - Takaaki Yoshimura
- Clinical AI Human Resources Development Program, Faculty of Medicine, Hokkaido University, Sapporo, Japan
- Global Center for Biomedical Science and Engineering, Faculty of Medicine, Hokkaido University, Sapporo, Japan
- Department of Health Sciences and Technology, Faculty of Health Sciences, Hokkaido University, Sapporo, Japan
- Department of Medical Physics, Hokkaido University Hospital, Sapporo, Japan
| | - Sanae Kaga
- Department of Medical Laboratory Science, Faculty of Health Sciences, Hokkaido University, Sapporo, Japan
- Diagnostic Center for Sonography, Hokkaido University Hospital, Sapporo, Japan
| | - Hideki Shima
- Department of Respiratory Medicine, Faculty of Medicine, Hokkaido University, Sapporo, Japan
| | - Satonori Tsuneta
- Department of Radiology, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Aoi Mukai
- Graduate School of Health Sciences, Hokkaido University, Sapporo, Japan
| | - Yui Nagai
- Graduate School of Health Sciences, Hokkaido University, Sapporo, Japan
| | - Shinobu Yokoyama
- Diagnostic Center for Sonography, Hokkaido University Hospital, Sapporo, Japan
| | - Hisao Nishino
- Diagnostic Center for Sonography, Hokkaido University Hospital, Sapporo, Japan
| | - Junichi Nakamura
- Department of Respiratory Medicine, Faculty of Medicine, Hokkaido University, Sapporo, Japan
| | - Takahiro Sato
- Department of Respiratory Medicine, Faculty of Medicine, Hokkaido University, Sapporo, Japan
- Division of Respiratory and Cardiovascular Innovative Research, Faculty of Medicine, Hokkaido University, Sapporo, Japan
| | - Ichizo Tsujino
- Department of Respiratory Medicine, Faculty of Medicine, Hokkaido University, Sapporo, Japan
- Division of Respiratory and Cardiovascular Innovative Research, Faculty of Medicine, Hokkaido University, Sapporo, Japan
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Aquino GJ, Mastrodicasa D, Alabed S, Abohashem S, Wen L, Gill RR, Bardo DME, Abbara S, Hanneman K. Radiology: Cardiothoracic Imaging Highlights 2023. Radiol Cardiothorac Imaging 2024; 6:e240020. [PMID: 38602468 PMCID: PMC11056755 DOI: 10.1148/ryct.240020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 02/15/2024] [Accepted: 02/28/2024] [Indexed: 04/12/2024]
Abstract
Radiology: Cardiothoracic Imaging publishes novel research and technical developments in cardiac, thoracic, and vascular imaging. The journal published many innovative studies during 2023 and achieved an impact factor for the first time since its inaugural issue in 2019, with an impact factor of 7.0. The current review article, led by the Radiology: Cardiothoracic Imaging trainee editorial board, highlights the most impactful articles published in the journal between November 2022 and October 2023. The review encompasses various aspects of coronary CT, photon-counting detector CT, PET/MRI, cardiac MRI, congenital heart disease, vascular imaging, thoracic imaging, artificial intelligence, and health services research. Key highlights include the potential for photon-counting detector CT to reduce contrast media volumes, utility of combined PET/MRI in the evaluation of cardiac sarcoidosis, the prognostic value of left atrial late gadolinium enhancement at MRI in predicting incident atrial fibrillation, the utility of an artificial intelligence tool to optimize detection of incidental pulmonary embolism, and standardization of medical terminology for cardiac CT. Ongoing research and future directions include evaluation of novel PET tracers for assessment of myocardial fibrosis, deployment of AI tools in clinical cardiovascular imaging workflows, and growing awareness of the need to improve environmental sustainability in imaging. Keywords: Coronary CT, Photon-counting Detector CT, PET/MRI, Cardiac MRI, Congenital Heart Disease, Vascular Imaging, Thoracic Imaging, Artificial Intelligence, Health Services Research © RSNA, 2024.
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Affiliation(s)
| | | | - Samer Alabed
- From the Department of Radiology, SUNY Upstate Medical University,
750 E Adams St, Syracuse, NY, 13210 (G.J.A); Department of Radiology, University
of Washington School of Medicine, UW Medical Center Montlake, Seattle, Wash
(D.M.); Department of Radiology, OncoRad/Tumor Imaging Metrics Core (TIMC),
University of Washington School of Medicine, Seattle, Wash (D.M.); Division of
Clinical Medicine, School of Medicine and Population Health, University of
Sheffield, Sheffield, United Kingdom (S. Alabed); National Institute for Health
and Care Research, Sheffield Biomedical Research Centre, Sheffield, United
Kingdom (S. Alabed); Department of Radiology, Cardiovascular Imaging Research
Center, Massachusetts General Hospital and Harvard Medical School, Boston, Mass
(S. Abohashem); Department of Radiology, Key Laboratory of Birth Defects and
Related Diseases of Women and Children, Ministry of Education, West China Second
University Hospital, Sichuan University, Sichuan, China (L.W.); Department of
Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston,
Mass (R.R.G.); Department of Medical Imaging, Ann & Robert H. Lurie
Children’s Hospital of Chicago, Chicago, Ill (D.M.E.B.); Department of
Radiology, UT Southwestern Medical Center, Dallas, Tex (S. Abbara); Department
of Medical Imaging, University Medical Imaging Toronto, University of Toronto,
Toronto, Ontario, Canada (K.H.); and Peter Munk Cardiac Centre, Toronto General
Hospital, University of Toronto, Toronto, Ontario, Canada (K.H.)
| | - Shady Abohashem
- From the Department of Radiology, SUNY Upstate Medical University,
750 E Adams St, Syracuse, NY, 13210 (G.J.A); Department of Radiology, University
of Washington School of Medicine, UW Medical Center Montlake, Seattle, Wash
(D.M.); Department of Radiology, OncoRad/Tumor Imaging Metrics Core (TIMC),
University of Washington School of Medicine, Seattle, Wash (D.M.); Division of
Clinical Medicine, School of Medicine and Population Health, University of
Sheffield, Sheffield, United Kingdom (S. Alabed); National Institute for Health
and Care Research, Sheffield Biomedical Research Centre, Sheffield, United
Kingdom (S. Alabed); Department of Radiology, Cardiovascular Imaging Research
Center, Massachusetts General Hospital and Harvard Medical School, Boston, Mass
(S. Abohashem); Department of Radiology, Key Laboratory of Birth Defects and
Related Diseases of Women and Children, Ministry of Education, West China Second
University Hospital, Sichuan University, Sichuan, China (L.W.); Department of
Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston,
Mass (R.R.G.); Department of Medical Imaging, Ann & Robert H. Lurie
Children’s Hospital of Chicago, Chicago, Ill (D.M.E.B.); Department of
Radiology, UT Southwestern Medical Center, Dallas, Tex (S. Abbara); Department
of Medical Imaging, University Medical Imaging Toronto, University of Toronto,
Toronto, Ontario, Canada (K.H.); and Peter Munk Cardiac Centre, Toronto General
Hospital, University of Toronto, Toronto, Ontario, Canada (K.H.)
| | - Lingyi Wen
- From the Department of Radiology, SUNY Upstate Medical University,
750 E Adams St, Syracuse, NY, 13210 (G.J.A); Department of Radiology, University
of Washington School of Medicine, UW Medical Center Montlake, Seattle, Wash
(D.M.); Department of Radiology, OncoRad/Tumor Imaging Metrics Core (TIMC),
University of Washington School of Medicine, Seattle, Wash (D.M.); Division of
Clinical Medicine, School of Medicine and Population Health, University of
Sheffield, Sheffield, United Kingdom (S. Alabed); National Institute for Health
and Care Research, Sheffield Biomedical Research Centre, Sheffield, United
Kingdom (S. Alabed); Department of Radiology, Cardiovascular Imaging Research
Center, Massachusetts General Hospital and Harvard Medical School, Boston, Mass
(S. Abohashem); Department of Radiology, Key Laboratory of Birth Defects and
Related Diseases of Women and Children, Ministry of Education, West China Second
University Hospital, Sichuan University, Sichuan, China (L.W.); Department of
Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston,
Mass (R.R.G.); Department of Medical Imaging, Ann & Robert H. Lurie
Children’s Hospital of Chicago, Chicago, Ill (D.M.E.B.); Department of
Radiology, UT Southwestern Medical Center, Dallas, Tex (S. Abbara); Department
of Medical Imaging, University Medical Imaging Toronto, University of Toronto,
Toronto, Ontario, Canada (K.H.); and Peter Munk Cardiac Centre, Toronto General
Hospital, University of Toronto, Toronto, Ontario, Canada (K.H.)
| | - Ritu R. Gill
- From the Department of Radiology, SUNY Upstate Medical University,
750 E Adams St, Syracuse, NY, 13210 (G.J.A); Department of Radiology, University
of Washington School of Medicine, UW Medical Center Montlake, Seattle, Wash
(D.M.); Department of Radiology, OncoRad/Tumor Imaging Metrics Core (TIMC),
University of Washington School of Medicine, Seattle, Wash (D.M.); Division of
Clinical Medicine, School of Medicine and Population Health, University of
Sheffield, Sheffield, United Kingdom (S. Alabed); National Institute for Health
and Care Research, Sheffield Biomedical Research Centre, Sheffield, United
Kingdom (S. Alabed); Department of Radiology, Cardiovascular Imaging Research
Center, Massachusetts General Hospital and Harvard Medical School, Boston, Mass
(S. Abohashem); Department of Radiology, Key Laboratory of Birth Defects and
Related Diseases of Women and Children, Ministry of Education, West China Second
University Hospital, Sichuan University, Sichuan, China (L.W.); Department of
Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston,
Mass (R.R.G.); Department of Medical Imaging, Ann & Robert H. Lurie
Children’s Hospital of Chicago, Chicago, Ill (D.M.E.B.); Department of
Radiology, UT Southwestern Medical Center, Dallas, Tex (S. Abbara); Department
of Medical Imaging, University Medical Imaging Toronto, University of Toronto,
Toronto, Ontario, Canada (K.H.); and Peter Munk Cardiac Centre, Toronto General
Hospital, University of Toronto, Toronto, Ontario, Canada (K.H.)
| | - Dianna M. E. Bardo
- From the Department of Radiology, SUNY Upstate Medical University,
750 E Adams St, Syracuse, NY, 13210 (G.J.A); Department of Radiology, University
of Washington School of Medicine, UW Medical Center Montlake, Seattle, Wash
(D.M.); Department of Radiology, OncoRad/Tumor Imaging Metrics Core (TIMC),
University of Washington School of Medicine, Seattle, Wash (D.M.); Division of
Clinical Medicine, School of Medicine and Population Health, University of
Sheffield, Sheffield, United Kingdom (S. Alabed); National Institute for Health
and Care Research, Sheffield Biomedical Research Centre, Sheffield, United
Kingdom (S. Alabed); Department of Radiology, Cardiovascular Imaging Research
Center, Massachusetts General Hospital and Harvard Medical School, Boston, Mass
(S. Abohashem); Department of Radiology, Key Laboratory of Birth Defects and
Related Diseases of Women and Children, Ministry of Education, West China Second
University Hospital, Sichuan University, Sichuan, China (L.W.); Department of
Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston,
Mass (R.R.G.); Department of Medical Imaging, Ann & Robert H. Lurie
Children’s Hospital of Chicago, Chicago, Ill (D.M.E.B.); Department of
Radiology, UT Southwestern Medical Center, Dallas, Tex (S. Abbara); Department
of Medical Imaging, University Medical Imaging Toronto, University of Toronto,
Toronto, Ontario, Canada (K.H.); and Peter Munk Cardiac Centre, Toronto General
Hospital, University of Toronto, Toronto, Ontario, Canada (K.H.)
| | - Suhny Abbara
- From the Department of Radiology, SUNY Upstate Medical University,
750 E Adams St, Syracuse, NY, 13210 (G.J.A); Department of Radiology, University
of Washington School of Medicine, UW Medical Center Montlake, Seattle, Wash
(D.M.); Department of Radiology, OncoRad/Tumor Imaging Metrics Core (TIMC),
University of Washington School of Medicine, Seattle, Wash (D.M.); Division of
Clinical Medicine, School of Medicine and Population Health, University of
Sheffield, Sheffield, United Kingdom (S. Alabed); National Institute for Health
and Care Research, Sheffield Biomedical Research Centre, Sheffield, United
Kingdom (S. Alabed); Department of Radiology, Cardiovascular Imaging Research
Center, Massachusetts General Hospital and Harvard Medical School, Boston, Mass
(S. Abohashem); Department of Radiology, Key Laboratory of Birth Defects and
Related Diseases of Women and Children, Ministry of Education, West China Second
University Hospital, Sichuan University, Sichuan, China (L.W.); Department of
Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston,
Mass (R.R.G.); Department of Medical Imaging, Ann & Robert H. Lurie
Children’s Hospital of Chicago, Chicago, Ill (D.M.E.B.); Department of
Radiology, UT Southwestern Medical Center, Dallas, Tex (S. Abbara); Department
of Medical Imaging, University Medical Imaging Toronto, University of Toronto,
Toronto, Ontario, Canada (K.H.); and Peter Munk Cardiac Centre, Toronto General
Hospital, University of Toronto, Toronto, Ontario, Canada (K.H.)
| | - Kate Hanneman
- From the Department of Radiology, SUNY Upstate Medical University,
750 E Adams St, Syracuse, NY, 13210 (G.J.A); Department of Radiology, University
of Washington School of Medicine, UW Medical Center Montlake, Seattle, Wash
(D.M.); Department of Radiology, OncoRad/Tumor Imaging Metrics Core (TIMC),
University of Washington School of Medicine, Seattle, Wash (D.M.); Division of
Clinical Medicine, School of Medicine and Population Health, University of
Sheffield, Sheffield, United Kingdom (S. Alabed); National Institute for Health
and Care Research, Sheffield Biomedical Research Centre, Sheffield, United
Kingdom (S. Alabed); Department of Radiology, Cardiovascular Imaging Research
Center, Massachusetts General Hospital and Harvard Medical School, Boston, Mass
(S. Abohashem); Department of Radiology, Key Laboratory of Birth Defects and
Related Diseases of Women and Children, Ministry of Education, West China Second
University Hospital, Sichuan University, Sichuan, China (L.W.); Department of
Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston,
Mass (R.R.G.); Department of Medical Imaging, Ann & Robert H. Lurie
Children’s Hospital of Chicago, Chicago, Ill (D.M.E.B.); Department of
Radiology, UT Southwestern Medical Center, Dallas, Tex (S. Abbara); Department
of Medical Imaging, University Medical Imaging Toronto, University of Toronto,
Toronto, Ontario, Canada (K.H.); and Peter Munk Cardiac Centre, Toronto General
Hospital, University of Toronto, Toronto, Ontario, Canada (K.H.)
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10
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Pelzl CE, Freedman S, Gutman R, Tsur M, Christensen EW. Ultrasound Utilization Among Medicare Beneficiaries From 2009 to 2021 by Billing Specialty and Place of Service. AJR Am J Roentgenol 2024; 222:e2330324. [PMID: 38090805 DOI: 10.2214/ajr.23.30324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Affiliation(s)
- Casey E Pelzl
- Harvey L. Neiman Health Policy Institute, Reston, VA
| | | | | | | | - Eric W Christensen
- Harvey L. Neiman Health Policy Institute, Reston, VA
- University of Minnesota, Falcon Heights, MN
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11
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Villines TC, Rodriguez-Lozano P, Mallawaarachchi I, Williams MC, Hirschfeld C, Better N, Shaw LJ, Vitola JV, Cerci RJ, Dorbala S, Bucciarelli-Ducci C, Karthikeyan G, Cohen YA, Malkovskiy E, Randazzo MJ, Choi AD, Pascual TNB, Pynda Y, Dondi M, Paez D, Einstein AJ. Disparities in Noninvasive Traditional and Advanced Testing for Coronary Artery Disease: Findings from the INCAPS-COVID 2 Study. Am J Cardiol 2024; 214:85-93. [PMID: 38218393 DOI: 10.1016/j.amjcard.2023.12.048] [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: 08/17/2023] [Revised: 12/10/2023] [Accepted: 12/24/2023] [Indexed: 01/15/2024]
Abstract
The COVID-19 pandemic disrupted the delivery of cardiovascular care, including noninvasive testing protocols and test selection for the evaluation of coronary artery disease (CAD). Trends in test selection in traditional versus advanced noninvasive tests for CAD during the pandemic and in countries of varying income status have not been well studied. The International Atomic Energy Agency conducted a global survey to assess the pandemic-related changes in the practice of cardiovascular diagnostic testing. Site procedural volumes for noninvasive tests to evaluate CAD from March 2019 (prepandemic), April 2020 (onset), and April 2021 (initial recovery) were collected. We considered traditional testing modalities, such as exercise electrocardiography, stress echocardiography, and stress single-photon emission computed tomography, and advanced testing modalities, such as stress cardiac magnetic resonance, coronary computed tomography angiography, and stress positron emission tomography. Survey data were obtained from 669 centers in 107 countries, reporting the performance of 367,933 studies for CAD during the study period. Compared with 2019, traditional tests were performed 14% less frequently (recovery rate 82%) in 2021 versus advanced tests, which were performed 15% more frequently (128% recovery rate). Coronary computed tomography angiography, stress cardiac magnetic resonance, and stress positron emission tomography showed 14%, 25%, and 25% increases in volumes from 2019 to 2021, respectively. The increase in advanced testing was isolated to high- and upper middle-income countries, with 132% recovery in advanced tests by 2021 compared with 55% in lower income nations. The COVID-19 pandemic exacerbated economic disparities in CAD testing practice between wealthy and poorer countries. Greater recovery rates and even new growth were observed for advanced imaging modalities; however, this growth was restricted to wealthy countries. Efforts to reduce practice variations in CAD testing because of economic status are warranted.
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Affiliation(s)
- Todd C Villines
- University of Virginia Health System, Charlottesville, Virginia.
| | | | | | - Michelle C Williams
- Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, United Kingdom
| | - Cole Hirschfeld
- Division of Cardiology, Weill Cornell Medicine and NewYork-Presbyterian Hospital, New York, New York
| | - Nathan Better
- Department of Cardiology and Nuclear Medicine, Cabrini Health, Royal Melbourne Hospital, University of Melbourne, Australia
| | - Leslee J Shaw
- Blavatnik Family Women'S Health Research Institute, Mount Sinai Medical Center, New York, New York
| | | | | | | | - Chiara Bucciarelli-Ducci
- Royal Brompton and Harefield Hospitals, Guys' and St Thomas NHS Trust and King's College London, London, United Kingdom
| | - Ganesan Karthikeyan
- Department of Cardiology, All India Institute of Medical Sciences, New Delhi, India
| | - Yosef A Cohen
- Department of Epidimiology, Columbia-Mailman School of Public Health, New York, New York
| | - Eli Malkovskiy
- Seymour, Paul and Gloria Milstein Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center and NewYork-Presbyterian Hospital, New York, New York; Department of Medicine, Columbia University Irving Medical Center and New York-Presbyterian Hospital, New York, New York
| | - Michael J Randazzo
- Section of Cardiology, University of Chicago Medical Center, Chicago, Illinois
| | - Andrew D Choi
- Division of Cardiology and Department of Radiology, The George Washington University School of Medicine, Washington, District of Columbia
| | | | - Yaroslav Pynda
- Division of Human Health, Department of Nuclear Sciences and Applications, International Atomic Energy Agency, Vienna, Austria
| | - Maurizio Dondi
- Division of Human Health, Department of Nuclear Sciences and Applications, International Atomic Energy Agency, Vienna, Austria
| | - Diana Paez
- Division of Human Health, Department of Nuclear Sciences and Applications, International Atomic Energy Agency, Vienna, Austria
| | - Andrew J Einstein
- Seymour, Paul and Gloria Milstein Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center and NewYork-Presbyterian Hospital, New York, New York; Department of Medicine, Columbia University Irving Medical Center and New York-Presbyterian Hospital, New York, New York
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12
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Catapano F, Moser LJ, Francone M, Catalano C, Vliegenthart R, Budde RPJ, Salgado R, Hrabak Paar M, Pirnat M, Loewe C, Nikolaou K, Williams MC, Muscogiuri G, Natale L, Lehmkuhl L, Sieren MM, Gutberlet M, Alkadhi H. Competence of radiologists in cardiac CT and MR imaging in Europe: insights from the ESCR Registry. Eur Radiol 2024:10.1007/s00330-024-10644-4. [PMID: 38418626 DOI: 10.1007/s00330-024-10644-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 01/22/2024] [Accepted: 01/25/2024] [Indexed: 03/02/2024]
Abstract
RATIONALE To provide an overview of the current status of cardiac multimodality imaging practices in Europe and radiologist involvement using data from the European Society of Cardiovascular Radiology (ESCR) MRCT-registry. MATERIALS AND METHODS Numbers on cardiac CT and MRI examinations were extracted from the MRCT-registry of the ESCR, entered between January 2011 and October 2023 (n = 432,265). Data collection included the total/annual numbers of examinations, indications, complications, and reporting habits. RESULTS Thirty-two countries contributed to the MRCT-registry, including 29 European countries. Between 2011 and 2022, there was a 4.5-fold increase in annually submitted CT examinations, from 3368 to 15,267, and a 3.8-fold increase in MRI examinations, from 3445 to 13,183. The main indications for cardiac CT were suspected coronary artery disease (CAD) (59%) and transcatheter aortic valve replacement planning (21%). The number of patients with intermediate pretest probability who underwent CT for suspected CAD showed an increase from 61% in 2012 to 82% in 2022. The main MRI indications were suspected myocarditis (26%), CAD (21%), and suspected cardiomyopathy (19%). Adverse event rates were very low for CT (0.3%) and MRI (0.7%) examinations. Reporting of CT and MRI examinations was performed mainly by radiologists (respectively 76% and 71%) and, to a lesser degree, in consensus with non-radiologists (19% and 27%, respectively). The remaining examinations (4.9% CT and 1.7% MRI) were reported by non-radiological specialties or in separate readings of radiologists and non-radiologists. CONCLUSIONS Real-life data on cardiac imaging in Europe using the largest available MRCT-registry demonstrate a considerable increase in examinations over the past years, the vast majority of which are read by radiologists. These findings indicate that radiologists contribute to meeting the increasing demands of competent and effective care in cardiac imaging to a relevant extent. CLINICAL RELEVANCE STATEMENT The number of cardiac CT and MRI examinations has risen over the past years, and radiologists read the vast majority of these studies as recorded in the MRCT-registry. KEY POINTS • The number of cardiac imaging examinations is constantly increasing. • Radiologists play a central role in providing cardiac CT and MR imaging services to a large volume of patients. • Cardiac CT and MR imaging examinations performed and read by radiologists show a good safety profile.
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Affiliation(s)
- Federica Catapano
- Department of Radiology, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Lukas Jakob Moser
- Diagnostic and Interventional Radiology, University Hospital Zurich, University of Zurich, Raemistrasse 100, CH-8091, Zurich, Switzerland
| | - Marco Francone
- Department of Radiology, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Carlo Catalano
- Department of Radiological Sciences, Policlinico Umberto I, Sapienza University of Rome, Rome, Italy
| | - Rozemarijn Vliegenthart
- Department of Radiology, University of Groningen/University Medical Center Groningen, Groningen, The Netherlands
| | - Ricardo P J Budde
- Department of Radiology and Nuclear Medicine, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Rodrigo Salgado
- Department of Radiology, Antwerp University Hospital & Antwerp University, Holy Heart Lier, Lier, Belgium
| | - Maja Hrabak Paar
- Department of Diagnostic and Interventional Radiology, University Hospital Centre Zagreb, Zagreb, Croatia
| | - Maja Pirnat
- Radiology Department, University Medical Centre Maribor, Maribor, Slovenia
| | - Christian Loewe
- Division of Cardiovascular and Interventional Radiology, Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Konstantin Nikolaou
- Department of Diagnostic and Interventional Radiology, University of Tübingen, Tübingen, Germany
| | - Michelle C Williams
- British Heart Foundation Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
| | - Giuseppe Muscogiuri
- Department of Radiology, IRCCS Istituto Auxologico Italiano, San Luca Hospital, Milan, Italy
- University of Milano-Bicocca, Milan, Italy
| | - Luigi Natale
- Department of Radiological Sciences - Institute of Radiology, Catholic University of Rome, A. Gemelli University Hospital, Rome, Italy
| | - Lukas Lehmkuhl
- Clinic for Radiology, Heart Center Bad Neustadt a.d. Saale, Bad Neustadt a.d. Saale, Germany
| | - Malte Maria Sieren
- Department of Radiology and Nuclear Medicine, University Hospital Schleswig-Holstein, Ratzeburger Lübeck, Germany
- Institute of Interventional Radiology, University Hospital Schleswig-Holstein, Ratzeburger Lübeck, Germany
| | - Matthias Gutberlet
- Department of Diagnostic and Interventional Radiology, University of Leipzig - Heart Centre, Leipzig, Germany
| | - Hatem Alkadhi
- Diagnostic and Interventional Radiology, University Hospital Zurich, University of Zurich, Raemistrasse 100, CH-8091, Zurich, Switzerland.
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13
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Olaisen S, Smistad E, Espeland T, Hu J, Pasdeloup D, Østvik A, Aakhus S, Rösner A, Malm S, Stylidis M, Holte E, Grenne B, Løvstakken L, Dalen H. Automatic measurements of left ventricular volumes and ejection fraction by artificial intelligence: clinical validation in real time and large databases. Eur Heart J Cardiovasc Imaging 2024; 25:383-395. [PMID: 37883712 PMCID: PMC11024810 DOI: 10.1093/ehjci/jead280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 10/11/2023] [Accepted: 10/15/2023] [Indexed: 10/28/2023] Open
Abstract
AIMS Echocardiography is a cornerstone in cardiac imaging, and left ventricular (LV) ejection fraction (EF) is a key parameter for patient management. Recent advances in artificial intelligence (AI) have enabled fully automatic measurements of LV volumes and EF both during scanning and in stored recordings. The aim of this study was to evaluate the impact of implementing AI measurements on acquisition and processing time and test-retest reproducibility compared with standard clinical workflow, as well as to study the agreement with reference in large internal and external databases. METHODS AND RESULTS Fully automatic measurements of LV volumes and EF by a novel AI software were compared with manual measurements in the following clinical scenarios: (i) in real time use during scanning of 50 consecutive patients, (ii) in 40 subjects with repeated echocardiographic examinations and manual measurements by 4 readers, and (iii) in large internal and external research databases of 1881 and 849 subjects, respectively. Real-time AI measurements significantly reduced the total acquisition and processing time by 77% (median 5.3 min, P < 0.001) compared with standard clinical workflow. Test-retest reproducibility of AI measurements was superior in inter-observer scenarios and non-inferior in intra-observer scenarios. AI measurements showed good agreement with reference measurements both in real time and in large research databases. CONCLUSION The software reduced the time taken to perform and volumetrically analyse routine echocardiograms without a decrease in accuracy compared with experts.
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Affiliation(s)
- Sindre Olaisen
- Centre for Innovative Ultrasound Solutions, Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Prinsesse Kristinas Gate 3, 7030 Trondheim, Norway
| | - Erik Smistad
- Centre for Innovative Ultrasound Solutions, Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Prinsesse Kristinas Gate 3, 7030 Trondheim, Norway
- Medical Image Analysis, Health Research, SINTEF Digital, Trondheim, Norway
| | - Torvald Espeland
- Centre for Innovative Ultrasound Solutions, Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Prinsesse Kristinas Gate 3, 7030 Trondheim, Norway
- Clinic of Cardiology, St.Olavs Hospital, Trondheim University Hospital, Prinsesse Kristinas Gate 3, 7030 Trondheim, Norway
| | - Jieyu Hu
- Centre for Innovative Ultrasound Solutions, Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Prinsesse Kristinas Gate 3, 7030 Trondheim, Norway
| | - David Pasdeloup
- Centre for Innovative Ultrasound Solutions, Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Prinsesse Kristinas Gate 3, 7030 Trondheim, Norway
| | - Andreas Østvik
- Centre for Innovative Ultrasound Solutions, Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Prinsesse Kristinas Gate 3, 7030 Trondheim, Norway
- Medical Image Analysis, Health Research, SINTEF Digital, Trondheim, Norway
| | - Svend Aakhus
- Centre for Innovative Ultrasound Solutions, Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Prinsesse Kristinas Gate 3, 7030 Trondheim, Norway
- Clinic of Cardiology, St.Olavs Hospital, Trondheim University Hospital, Prinsesse Kristinas Gate 3, 7030 Trondheim, Norway
| | - Assami Rösner
- Department of Cardiology, University Hospital of North Norway, Tromsø, Norway
- Institute for Clinical Medicine, UiT, The Arctic University of Norway, Tromsø, Norway
| | - Siri Malm
- Institute for Clinical Medicine, UiT, The Arctic University of Norway, Tromsø, Norway
- Department of Cardiology, University Hospital of North Norway, UNN Harstad, Tromsø, Norway
| | - Michael Stylidis
- Department of Cardiology, University Hospital of North Norway, Tromsø, Norway
- Department of Community Medicine, UiT, The Arctic University of Norway, Tromsø, Norway
| | - Espen Holte
- Centre for Innovative Ultrasound Solutions, Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Prinsesse Kristinas Gate 3, 7030 Trondheim, Norway
- Clinic of Cardiology, St.Olavs Hospital, Trondheim University Hospital, Prinsesse Kristinas Gate 3, 7030 Trondheim, Norway
| | - Bjørnar Grenne
- Centre for Innovative Ultrasound Solutions, Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Prinsesse Kristinas Gate 3, 7030 Trondheim, Norway
- Clinic of Cardiology, St.Olavs Hospital, Trondheim University Hospital, Prinsesse Kristinas Gate 3, 7030 Trondheim, Norway
| | - Lasse Løvstakken
- Centre for Innovative Ultrasound Solutions, Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Prinsesse Kristinas Gate 3, 7030 Trondheim, Norway
| | - Havard Dalen
- Centre for Innovative Ultrasound Solutions, Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Prinsesse Kristinas Gate 3, 7030 Trondheim, Norway
- Clinic of Cardiology, St.Olavs Hospital, Trondheim University Hospital, Prinsesse Kristinas Gate 3, 7030 Trondheim, Norway
- Department of Medicine, Levanger Hospital, Nord-Trøndelag Hospital Trust, Kirkegata 2, 7600 Levanger, Norway
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14
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Bullock-Palmer RP, Flores Rosario K, Douglas PS, Hahn RT, Lang RM, Chareonthaitawee P, Srichai MB, Ordovas KG, Baldassarre LA, Burroughs MS, Henderson CS, Woodard PK, Pressoir K, Swaminathan M, Blankstein R, Daubert MA. Multimodality Cardiac Imaging and the Imaging Workforce in the United States: Diversity, Disparities, and Future Directions. Circ Cardiovasc Imaging 2024; 17:e016409. [PMID: 38377238 DOI: 10.1161/circimaging.123.016409] [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] [Indexed: 02/22/2024]
Abstract
Innovations in cardiac imaging have fundamentally advanced the understanding and treatment of cardiovascular disease. These advances in noninvasive cardiac imaging have also expanded the role of the cardiac imager and dramatically increased the demand for imagers who are cross-trained in multiple modalities. However, we hypothesize that there is significant variation in the availability of cardiac imaging expertise and a disparity in the adoption of advanced imaging technologies across the United States. To evaluate this, we have brought together the leaders of cardiovascular imaging societies, imaging trainees, as well as collaborated with national imaging accreditation commissions and imaging certification boards to assess the state of cardiac imaging and the diversity of the imaging workforce in the United States. Aggregate data confirm the presence of critical gaps, such as limited access to imaging and imaging expertise in rural communities, as well as disparities in the imaging workforce, notably among women and underrepresented minorities. Based on these results, we have proposed solutions to promote and maintain a robust and diverse community of cardiac imagers and improve equity and accessibility for cardiac imaging technologies.
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Affiliation(s)
- Renee P Bullock-Palmer
- Clinical Associate Professor, Department of Medicine, Division of Cardiology, Thomas Jefferson University, Philadelphia, PA (R.P.B.P.)
- Department of Cardiology, Deborah Heart and Lung Center, Browns Mills, NJ (R.P.B.P., K.P.)
| | - Karen Flores Rosario
- Department of Medicine, Division of Cardiology (K.F.R., P.S.D., M.A.D.), Duke University Medical Center, Durham, NC
| | - Pamela S Douglas
- Department of Medicine, Division of Cardiology (K.F.R., P.S.D., M.A.D.), Duke University Medical Center, Durham, NC
| | - Rebecca T Hahn
- Department of Medicine, Columbia University Irving Medical Center, New York, NY (R.T.H.)
| | - Roberto M Lang
- Section of Cardiology, Heart and Vascular Center, University of Chicago, IL (R.M.L.)
| | | | - Monvadi B Srichai
- Department of Medicine and Radiology, Medstar Georgetown University Hospital, Medstar Heart and Vascular Institute, Washington, DC (M.B.S.)
| | - Karen G Ordovas
- Department of Radiology, University of Washington, Seattle, WA (K.G.O.)
| | - Lauren A Baldassarre
- Department of Medicine, Division of Cardiology, Yale School of Medicine, New Haven, CT (L.A.B.)
| | | | - Cory S Henderson
- Department of Medicine, Division of Cardiology, Department of Radiology, Boston Medical Center, MA (C.S.H.)
| | - Pamela K Woodard
- Department of Radiology, Mallinckrodt Institute of Radiology, Washington University, St Louis, MO (P.K.W.)
| | - Kathleen Pressoir
- Department of Cardiology, Deborah Heart and Lung Center, Browns Mills, NJ (R.P.B.P., K.P.)
| | - Madhav Swaminathan
- Department of Anesthesiology, Cardiothoracic Division (M.S.), Duke University Medical Center, Durham, NC
| | - Ron Blankstein
- Department of Medicine and Radiology, Brigham and Women's Hospital, Boston, MA (R.B.)
| | - Melissa A Daubert
- Department of Medicine, Division of Cardiology (K.F.R., P.S.D., M.A.D.), Duke University Medical Center, Durham, NC
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15
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Kampaktsis PN, Bohoran TA, Lebehn M, McLaughlin L, Leb J, Liu Z, Moustakidis S, Siouras A, Singh A, Hahn RT, McCann GP, Giannakidis A. An attention-based deep learning method for right ventricular quantification using 2D echocardiography: Feasibility and accuracy. Echocardiography 2024; 41:e15719. [PMID: 38126261 DOI: 10.1111/echo.15719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 11/01/2023] [Accepted: 11/05/2023] [Indexed: 12/23/2023] Open
Abstract
AIM To test the feasibility and accuracy of a new attention-based deep learning (DL) method for right ventricular (RV) quantification using 2D echocardiography (2DE) with cardiac magnetic resonance imaging (CMR) as reference. METHODS AND RESULTS We retrospectively analyzed images from 50 adult patients (median age 51, interquartile range 32-62 42% women) who had undergone CMR within 1 month of 2DE. RV planimetry of the myocardial border was performed in end-diastole (ED) and end-systole (ES) for eight standardized 2DE RV views with calculation of areas. The DL model comprised a Feature Tokenizer module and a stack of Transformer layers. Age, gender and calculated areas were used as inputs, and the output was RV volume in ED/ES. The dataset was randomly split into training, validation and testing subsets (35, 5 and 10 patients respectively). Mean RVEDV, RVESV and RV ejection fraction (EF) were 163 ± 70 mL, 82 ± 42 mL and 51% ± 8% respectively without differences among the subsets. The proposed method achieved good prediction of RV volumes (R2 = .953, absolute percentage error [APE] = 9.75% ± 6.23%) and RVEF (APE = 7.24% ± 4.55%). Per CMR, there was one patient with RV dilatation and three with RV dysfunction in the testing dataset. The DL model detected RV dilatation in 1/1 case and RV dysfunction in 4/3 cases. CONCLUSIONS An attention-based DL method for 2DE RV quantification showed feasibility and promising accuracy. The method requires validation in larger cohorts with wider range of RV size and function. Further research will focus on the reduction of the number of required 2DE to make the method clinically applicable.
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Affiliation(s)
- Polydoros N Kampaktsis
- Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center, New York, New York, USA
| | - Tuan A Bohoran
- School of Science and Technology, Nottingham Trent University, Nottingham, UK
| | - Mark Lebehn
- Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center, New York, New York, USA
| | - Laura McLaughlin
- Department of Medicine, Columbia University Irving Medical Center, New York, New York, USA
| | - Jay Leb
- Department of Radiology, Columbia University Irving Medical Center, New York, New York, USA
| | - Zhonghua Liu
- Department of Biostatistics, Columbia University Irving Medical Center, New York, New York, USA
| | | | | | - Anvesha Singh
- Department of Cardiovascular Sciences, University of Leicester and the NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Leicester, UK
| | - Rebecca T Hahn
- Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center, New York, New York, USA
| | - Gerry P McCann
- Department of Cardiovascular Sciences, University of Leicester and the NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Leicester, UK
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16
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Langguth P, Wolf C, Sedaghat S, Huhndorf M, Frank J, Both M, Jansen O, Salehi Ravesh M, Lebenatus A. Clinical Value of Using Heart Rate Variability Biofeedback Before Elective CT Coronary Angiography to Reduce Heart Rate and the Need for Beta-Blockers. Appl Psychophysiol Biofeedback 2023; 48:393-401. [PMID: 37341838 PMCID: PMC10581922 DOI: 10.1007/s10484-023-09590-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/10/2023] [Indexed: 06/22/2023]
Abstract
The value of biofeedback before elective coronary computed tomography angiography (CCTA) to reduce patients' heart rates (HR) was investigated in the current work. Sixty patients who received CCTA to exclude coronary artery disease were included in our study and separated into two groups: with biofeedback (W-BF) and without biofeedback (WO-BF). The W-BF group used a biofeedback device for 15 min before CCTA. HR was determined in each patient at four measurement time points (MTP): during the pre-examination interview (MTP1), positioning on the CT patient table before CCTA (MTP2), during CCTA image acquisition (MTP3), and after completing CCTA (MTP4). If necessary, beta-blockers were administered in both groups after MTP2 until a HR of less than 65 bpm was achieved. Two board-certified radiologists subsequently assessed the image quality and analyzed the findings. Overall, the need for beta-blockers was significantly lower in patients in the W-BF group than the WO-BF group (p = 0.032). In patients with a HR of 81-90, beta-blockers were not required in four of six cases in the W-BF group, whereas in the WO-BF group all patients needed beta-blockers (p = 0.03). The amount of HR reduction between MTP1 and MTP2 was significantly higher in the W-BF compared to the WO-BF group (p = 0.028). There was no significant difference between the W-BF and WO-BF groups regarding image quality (p = 0.179). By using biofeedback prior to elective CCTA, beta-blocker use could be decreased without compromising CT image quality and analysis, especially in patients with an initial HR of 81-90 bpm.
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Affiliation(s)
- Patrick Langguth
- Department for Radiology and Neuroradiology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany.
| | - Carmen Wolf
- Department for Radiology and Neuroradiology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Sam Sedaghat
- Department of Diagnostic and Interventional Radiology, University Hospital Heidelberg, Heidelberg, Germany
| | - Monika Huhndorf
- Department for Radiology and Neuroradiology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Johanne Frank
- Department for Internal Medicine III, Molecular Cardiology and Angiology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Marcus Both
- Department for Radiology and Neuroradiology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Olav Jansen
- Department for Radiology and Neuroradiology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Mona Salehi Ravesh
- Department for Radiology and Neuroradiology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Annett Lebenatus
- Department for Radiology and Neuroradiology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
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17
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Steitieh D, Klahr R, Greenfest A, Xu S, Cheung JW, Feldman DN, Singh HS, Minutello RM, Wong SC, Wang J, Lu DY, Karas MG, Kim LK. Trends in the Incidence of Cardiogenic Shock, and Utilization of Mechanical Circulatory Support in Myocarditis: Insights from the National Inpatient Sample 2016 to 2019. Am J Cardiol 2023; 205:406-412. [PMID: 37659261 DOI: 10.1016/j.amjcard.2023.07.183] [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: 04/30/2023] [Revised: 07/20/2023] [Accepted: 07/30/2023] [Indexed: 09/04/2023]
Abstract
A subset of patients with myocarditis present with cardiogenic shock. There is a lack of contemporary data assessing the use of mechanical circulatory support (MCS) in these patients. Myocarditis hospitalizations were analyzed using the National Inpatient Sample between 2016 and 2019. Characteristics of patients with and without cardiogenic shock were assessed. Trends in mortality, MCS, right-sided cardiac catheterization (RHC) and endomyocardial biopsy were evaluated. The impact of RHC on consequent MCS and mortality was studied. A total of 38,300 hospitalizations for myocarditis were included in the study, of which 3,490 hospitalizations (9.1%) had cardiogenic shock. Patients with cardiogenic shock were older (p <0.001) and had more chronic kidney disease and atrial fibrillation. Between 2016 and 2019, there was an increase in myocarditis admissions but no difference in rates of cardiogenic shock and mortality and the use of extracorporeal membrane oxygenation, percutaneous ventricular assist devices, intra-aortic balloon pumps, left ventricular assist devices, and cardiac transplant. The most common form of MCS used in myocarditis was extracorporeal membrane oxygenation. The rates of RHC (p = 0.02) and endomyocardial biopsy (p = 0.03) increased over time. Patients who underwent RHC were more likely to receive mechanical support, and in patients with shock, RHC was associated with lower mortality (adjusted odds ratio 0.34, p <0.01). Myocarditis admissions increased over time but with no increase in the rates of cardiogenic shock and MCS. In patients with cardiogenic shock, RHC resulted in lower mortality.
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Affiliation(s)
| | | | | | | | - Jim W Cheung
- Division of Cardiology; Weill Cornell Cardiovascular Outcomes Research Group (CORG), Division of Cardiology, Weill Cornell Medical College, New York Presbyterian Hospital, New York, New York
| | - Dmitriy N Feldman
- Division of Cardiology; Weill Cornell Cardiovascular Outcomes Research Group (CORG), Division of Cardiology, Weill Cornell Medical College, New York Presbyterian Hospital, New York, New York
| | | | - Robert M Minutello
- Division of Cardiology, Weill Cornell Medical College, New York Presbyterian Hospital-Queens, Queens, New York
| | | | | | - Daniel Y Lu
- Division of Cardiology; Weill Cornell Cardiovascular Outcomes Research Group (CORG), Division of Cardiology, Weill Cornell Medical College, New York Presbyterian Hospital, New York, New York
| | | | - Luke K Kim
- Division of Cardiology; Weill Cornell Cardiovascular Outcomes Research Group (CORG), Division of Cardiology, Weill Cornell Medical College, New York Presbyterian Hospital, New York, New York
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18
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Petretta M, Panico M, Mainolfi CG, Cuocolo A. Including myocardial flow reserve by PET in prediction models: Ready to fly? J Nucl Cardiol 2023; 30:2054-2057. [PMID: 37072671 DOI: 10.1007/s12350-023-03259-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 03/11/2023] [Indexed: 04/20/2023]
Affiliation(s)
- Mario Petretta
- IRCCS Synlab SDN, Via Gianturco 113, 80121, Naples, Italy
| | - Mariarosaria Panico
- Institute of Biostructure and Bioimaging, National Council of Research, Naples, Italy
| | | | - Alberto Cuocolo
- Department of Advanced Biomedical Sciences, University Federico II, Naples, Italy.
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19
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Mazloumi M, Van Gompel G, Tanaka K, Argacha JF, de Mey J, Buls N. The impact of iodine contrast agent on radiation dose of heart and blood: a comparison between coronary CT angiography and cardiac calcium scoring CT. Acta Radiol 2023; 64:2387-2392. [PMID: 37138465 DOI: 10.1177/02841851231170850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
BACKGROUND Iodine contrast agent (CA) is widely used in cardiac computed tomography (CT). The CA can increase the organ radiation doses due to the photoelectric effect. PURPOSE To investigate the impact of CA on radiation dose in cardiac CT by comparing the radiation dose between contrast coronary CT angiography (CCTA) and non-contrast calcium scoring CT (CSCT). MATERIAL AND METHODS Radiation doses were computationally calculated for 30 individual patients who received CSCT and CCTA in the same exam session. The geometry and acquisition parameters were modeled in the simulations based on individual patient CT images and acquisitions. Doses in the presence and absence of CA were obtained in the aorta, left ventricle (LV), right ventricle (RV), and myocardial tissue (MT). The dose values were normalized by size-specific dose estimate (SSDE). The dose enhancement factors (DEFSSDE) were calculated as the ratio of doses in CCTA over doses in CSCT. RESULTS Compared to the CSCT scans, doses increase in the CCTA scans in the aorta (DEFSSDE = 2.14 ± 0.20), LV (DEFSSDE = 1.78 ± 0.26), and RV (DEFSSDE = 1.31 ± 0.22). A linear relation is observed between the local CA concentrations and the dose increase in the heart; DEFSSDE = 0.07*I(mg/mL) + 0.80 (R2 = 0.8; p < 0.01). The DEFSSDE in the MT (DEFSSDE = 0.96 ± 0.08) showed no noticeable impact of CA on the dose in this tissue. In addition, patient variability in the dose distributions was observed. CONCLUSION A linear causal relation exists between local CA concentration and increase in radiation dose in cardiac CT. For the same CT exposure, dose to the heart is on average 55% higher in contrast cardiac CT.
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Affiliation(s)
- Mahta Mazloumi
- Department of Radiology, Vrije Universiteit Brussel, Universitair Ziekenhuis Brussel (UZ Brussel), Brussels, Belgium
| | - Gert Van Gompel
- Department of Radiology, Vrije Universiteit Brussel, Universitair Ziekenhuis Brussel (UZ Brussel), Brussels, Belgium
| | - Kaoru Tanaka
- Department of Radiology, Vrije Universiteit Brussel, Universitair Ziekenhuis Brussel (UZ Brussel), Brussels, Belgium
| | - Jean-François Argacha
- Department of Cardiology, Vrije Universiteit Brussel, Universitair Ziekenhuis Brussel (UZ Brussel), Brussels, Belgium
| | - Johan de Mey
- Department of Radiology, Vrije Universiteit Brussel, Universitair Ziekenhuis Brussel (UZ Brussel), Brussels, Belgium
| | - Nico Buls
- Department of Radiology, Vrije Universiteit Brussel, Universitair Ziekenhuis Brussel (UZ Brussel), Brussels, Belgium
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20
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Saad JM, Ahmed AI, Han Y, El Nihum LI, Alahdab F, Nabi F, Al-Mallah MH. Splenic switch-off in regadenoson 82Rb-PET myocardial perfusion imaging: assessment of clinical utility. J Nucl Cardiol 2023; 30:1484-1496. [PMID: 36607537 DOI: 10.1007/s12350-022-03158-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 11/05/2022] [Indexed: 01/07/2023]
Abstract
BACKGROUND Splenic switch-off (SSO) is a phenomenon describing a decrease in splenic radiotracer uptake after vasodilatory stress. We aimed to assess the diagnostic utility of regadenoson-induced SSO. METHODS We included consecutive patients who had clinically indicated Regadenoson Rb-82 PET-MPI for suspected CAD. This derivation cohort (no perfusion defects and myocardial flow reserves (MFR) ≥ 2) was used to calculate the splenic response ratio (SRR). The validation cohort was defined as patients who underwent both PET-MPI studies and invasive coronary angiography (ICA). RESULTS The derivation cohort (n = 100, 57.4 ± 11.6 years, 77% female) showed a decrease in splenic uptake from rest to stress (79.9 ± 16.8 kBq⋅mL vs 69.1 ± 16.2 kBq⋅mL, P < .001). From the validation cohort (n = 315, 66.3 ± 10.4 years, 67% male), 28% (via SRR = 0.88) and 15% (visually) were classified as splenic non-responders. MFR was lower in non-responders (SRR; 1.55 ± 0.65 vs 1.76 ± 0.78, P = .02 and visually; 1.18 ± 0.33 vs 1.79 ± 0.77, P < .001). Based on ICA, non-responders were more likely to note obstructive epicardial disease with normal PET scans especially in patients with MFR < 1.5 (SRR; 61% vs 34% P = .05 and visually; 68% vs 33%, P = .01). CONCLUSION Lack of splenic response based on visual or quantitative assessment of SSO may be used to identify an inadequate vasodilatory response.
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Affiliation(s)
- Jean Michel Saad
- Houston Methodist DeBakey Heart & Vascular Center, Houston, TX, USA
| | | | - Yushui Han
- Houston Methodist DeBakey Heart & Vascular Center, Houston, TX, USA
| | | | - Fares Alahdab
- Houston Methodist DeBakey Heart & Vascular Center, Houston, TX, USA
| | - Faisal Nabi
- Houston Methodist DeBakey Heart & Vascular Center, Houston, TX, USA
| | - Mouaz H Al-Mallah
- Houston Methodist DeBakey Heart & Vascular Center, Houston, TX, USA.
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21
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Pepe A, Crimì F, Vernuccio F, Cabrelle G, Lupi A, Zanon C, Gambato S, Perazzolo A, Quaia E. Medical Radiology: Current Progress. Diagnostics (Basel) 2023; 13:2439. [PMID: 37510183 PMCID: PMC10378672 DOI: 10.3390/diagnostics13142439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/10/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023] Open
Abstract
Recently, medical radiology has undergone significant improvements in patient management due to advancements in image acquisition by the last generation of machines, data processing, and the integration of artificial intelligence. In this way, cardiovascular imaging is one of the fastest-growing radiological subspecialties. In this study, a compressive review was focused on addressing how and why CT and MR have gained a I class indication in most cardiovascular diseases, and the potential impact of tissue and functional characterization by CT photon counting, quantitative MR mapping, and 4-D flow. Regarding rectal imaging, advances in cancer imaging using diffusion-weighted MRI sequences for identifying residual disease after neoadjuvant chemoradiotherapy and [18F] FDG PET/MRI were provided for high-resolution anatomical and functional data in oncological patients. The results present a large overview of the approach to the imaging of diffuse and focal liver diseases by US elastography, contrast-enhanced US, quantitative MRI, and CT for patient risk stratification. Italy is currently riding the wave of these improvements. The development of large networks will be crucial to create high-quality databases for patient-centered precision medicine using artificial intelligence. Dedicated radiologists with specific training and a close relationship with the referring clinicians will be essential human factors.
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Affiliation(s)
- Alessia Pepe
- Institute of Radiology, University Hospital of Padua-DIMED, Padua University Hospital, University of Padua, 35122 Padua, Italy
| | - Filippo Crimì
- Institute of Radiology, University Hospital of Padua-DIMED, Padua University Hospital, University of Padua, 35122 Padua, Italy
| | - Federica Vernuccio
- Department of Radiology, University Hospital of Padua, 35128 Padua, Italy
| | - Giulio Cabrelle
- Department of Radiology, University Hospital of Padua, 35128 Padua, Italy
| | - Amalia Lupi
- Institute of Radiology, University Hospital of Padua-DIMED, Padua University Hospital, University of Padua, 35122 Padua, Italy
| | - Chiara Zanon
- Institute of Radiology, University Hospital of Padua-DIMED, Padua University Hospital, University of Padua, 35122 Padua, Italy
| | - Sebastiano Gambato
- Institute of Radiology, University Hospital of Padua-DIMED, Padua University Hospital, University of Padua, 35122 Padua, Italy
| | - Anna Perazzolo
- Institute of Radiology, University Hospital of Padua-DIMED, Padua University Hospital, University of Padua, 35122 Padua, Italy
- Institute of Radiology, Department of Medicine, Azienda Ospedaliero-Universitaria Santa Maria della Misericordia, University of Udine, 33100 Udine, Italy
| | - Emilio Quaia
- Institute of Radiology, University Hospital of Padua-DIMED, Padua University Hospital, University of Padua, 35122 Padua, Italy
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22
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Lee C, Dow S, Henkin S, Morley BD, Rassias AJ, Taub C, Costa SP. A Sticky Situation: The Unfortunate Consequence of Chewing Gum. CASE (PHILADELPHIA, PA.) 2023; 7:212-214. [PMID: 37396473 PMCID: PMC10307584 DOI: 10.1016/j.case.2023.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
Foreign substances can interfere with the TEE probe, causing poor image quality. Operators should be aware of the reasons for diffusely anechoic TEE images. Poor identification of echocardiographic artifacts may lead to adverse outcomes.
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Affiliation(s)
- Christopher Lee
- Heart and Vascular Center, Dartmouth-Hitchcock Medical Center, New Hampshire, Lebanon
| | - Sam Dow
- Heart and Vascular Center, Dartmouth-Hitchcock Medical Center, New Hampshire, Lebanon
| | - Stanislav Henkin
- Heart and Vascular Center, Dartmouth-Hitchcock Medical Center, New Hampshire, Lebanon
| | - Benjamin D. Morley
- Department of Anesthesiology, Dartmouth-Hitchcock Medical Center, New Hampshire, Lebanon
| | - Athos J. Rassias
- Department of Anesthesiology, Dartmouth-Hitchcock Medical Center, New Hampshire, Lebanon
| | - Cynthia Taub
- Heart and Vascular Center, Dartmouth-Hitchcock Medical Center, New Hampshire, Lebanon
| | - Salvatore P. Costa
- Heart and Vascular Center, Dartmouth-Hitchcock Medical Center, New Hampshire, Lebanon
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Mastrodicasa D, Aquino GJ, Ordovas KG, Vargas D, Fleischmann D, Abbara S, Hanneman K. Radiology: Cardiothoracic Imaging Highlights 2022. Radiol Cardiothorac Imaging 2023; 5:e230042. [PMID: 37404783 PMCID: PMC10316293 DOI: 10.1148/ryct.230042] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 04/07/2023] [Accepted: 05/08/2023] [Indexed: 07/06/2023]
Abstract
Since its inaugural issue in 2019, Radiology: Cardiothoracic Imaging has disseminated the latest scientific advances and technical developments in cardiac, vascular, and thoracic imaging. In this review, we highlight select articles published in this journal between October 2021 and October 2022. The scope of the review encompasses various aspects of coronary artery and congenital heart diseases, vascular diseases, thoracic imaging, and health services research. Key highlights include changes in the revised Coronary Artery Disease Reporting and Data System 2.0, the value of coronary CT angiography in informing prognosis and guiding treatment decisions, cardiac MRI findings after COVID-19 vaccination or infection, high-risk features at CT angiography to identify patients with aortic dissection at risk for late adverse events, and CT-guided fiducial marker placement for preoperative planning for pulmonary nodules. Ongoing research and future directions include photon-counting CT and artificial intelligence applications in cardiovascular imaging. Keywords: Pediatrics, CT Angiography, CT-Perfusion, CT-Spectral Imaging, MR Angiography, PET/CT, Transcatheter Aortic Valve Implantation/Replacement (TAVI/TAVR), Cardiac, Pulmonary, Vascular, Aorta, Coronary Arteries © RSNA, 2023.
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Nayfeh M, Ahmed AI, Saad JM, Alahdab F, Al-Mallah M. The Role of Cardiac PET in Diagnosis and Prognosis of Ischemic Heart Disease: Optimal Modality Across Different Patient Populations. Curr Atheroscler Rep 2023:10.1007/s11883-023-01107-0. [PMID: 37162723 PMCID: PMC10170052 DOI: 10.1007/s11883-023-01107-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/25/2023] [Indexed: 05/11/2023]
Abstract
PURPOSE OF REVIEW Despite single-photon emission computerized tomography (SPECT) being the most used nuclear imaging technique for diagnosis of coronary artery disease (CAD), many now consider positron emission tomography (PET) as a superior modality. This review will focus on the advances of cardiac PET in recent years and its advantages compared to SPECT in diagnosis and prognosis of CAD. RECENT FINDINGS PET's higher resolution and enhanced diagnostic accuracy, as well as lower radiation exposure, all help explain the rationale for its wider spread and use. PET also allows for measurement of myocardial blood flow (MBF) and myocardial flow reserve (MFR), which aids in several different clinical scenarios, such as diagnosing multivessel disease or identifying non-responders. PET has also been shown to be useful in diagnosing CAD in various specific populations, such as patients with prior COVID-19 infection, cardiac transplant, and other comorbidities.
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Affiliation(s)
- Malek Nayfeh
- Houston Methodist Debakey Heart & Vascular Center, Houston Methodist Hospital, Houston, TX, USA
| | - Ahmed Ibrahim Ahmed
- Houston Methodist Debakey Heart & Vascular Center, Houston Methodist Hospital, Houston, TX, USA
| | - Jean Michel Saad
- Houston Methodist Debakey Heart & Vascular Center, Houston Methodist Hospital, Houston, TX, USA
| | - Fares Alahdab
- Houston Methodist Debakey Heart & Vascular Center, Houston Methodist Hospital, Houston, TX, USA
| | - Mouaz Al-Mallah
- Houston Methodist Debakey Heart & Vascular Center, Houston Methodist Hospital, Houston, TX, USA.
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Thavendiranathan P, Marwick TH, Chandrashekhar Y. Evidence-Based Cardiovascular Imaging: A Path Worth Paving! JACC Cardiovasc Imaging 2023; 16:405-407. [PMID: 36889854 DOI: 10.1016/j.jcmg.2023.02.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
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26
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Li W, Zhang J, Ruan Z, Zhao J, Zhang B, Zhang J. The effect of two different methods of planning landing zone for left atrial appendage closure by cardiac computed tomography angiography: a comparative study. ANNALS OF TRANSLATIONAL MEDICINE 2023; 11:75. [PMID: 36819592 PMCID: PMC9929771 DOI: 10.21037/atm-22-6183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 01/03/2023] [Indexed: 01/30/2023]
Abstract
Background To explore the value of 2 different methods for planning landing zone for left atrial appendage closure (LAAC) by cardiac computed tomography angiography (CCTA). Methods A retrospective analysis was performed on the clinical data of patients who successfully underwent LAAC with the Watchman device at The Affiliated Taizhou People's Hospital of Nanjing Medical University from August 2020 to February 2022. Two different methods were used to plan the landing zone and measure the longest diameter, average diameter, depth, and perimeter of the landing zone. The difference between the 2 methods and the correlation between their measurements and occluder size were analyzed. Results A total of 66 patients undergoing LAAC were included, with an average age of 69.35±7.1 years, of whom 30 (45.5%) were women. The mean error between the longest diameter measured by the traditional method and the actual value was 2.90±2.83 mm, and the mean absolute error (MAE) was 2.71 (1.17, 4.38) mm. The mean error between the longest diameter measured by the new method and the actual value was 0.9 (-0.13, 2.50) mm, and its MAE was 1.4 (0.40, 2.53) mm. The error of the longest diameter measured by the traditional method was larger than that measured by the new method (P<0.001). The mean error between the depth measured by the traditional method and the actual value was 1.40±3.45 mm, and the MAE was 2.36 (0.74, 4.58) mm. The mean error between the depth measured by the new method and the actual value was 0.10 (-1.33, 1.95) mm, and the MAE was 1.55 (0.60, 3.10) mm. Likewise, the depth error measured by the traditional method was larger than that measured by the new method (P<0.05). The correlation between the perimeter and the size of the occluder was the strongest (r=0.919, P<0.001). Conclusions With CCTA, the new method is more accurate in planning landing zone than the traditional method. It is particularly important to select the occluder size for the patients with flat oval landing zone ostium.
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Affiliation(s)
- Wei Li
- Department of Cardiology, The Affiliated Taizhou People’s Hospital of Nanjing Medical University, Taizhou School of Clinical Medicine, Nanjing Medical University, Taizhou, China
| | - Jian Zhang
- Imaging Department, The Affiliated Taizhou People’s Hospital of Nanjing Medical University, Taizhou School of Clinical Medicine, Nanjing Medical University, Taizhou, China
| | - Zhongbao Ruan
- Department of Cardiology, The Affiliated Taizhou People’s Hospital of Nanjing Medical University, Taizhou School of Clinical Medicine, Nanjing Medical University, Taizhou, China
| | - Juan Zhao
- Medical School, Nantong University, Nantong, China
| | - Bo Zhang
- Imaging Department, The Affiliated Taizhou People’s Hospital of Nanjing Medical University, Taizhou School of Clinical Medicine, Nanjing Medical University, Taizhou, China
| | - Ji Zhang
- Imaging Department, The Affiliated Taizhou People’s Hospital of Nanjing Medical University, Taizhou School of Clinical Medicine, Nanjing Medical University, Taizhou, China
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Sassoon DJ, Norris EC, Malone LJ, Weinman JP, Mong DA, Barker AJ, Browne LP. Unexpected extracardiac findings in cardiac computed tomography from neonates to young adults. Pediatr Radiol 2023; 53:885-891. [PMID: 36697721 DOI: 10.1007/s00247-023-05587-9] [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: 08/17/2022] [Revised: 12/18/2022] [Accepted: 12/30/2022] [Indexed: 01/27/2023]
Abstract
BACKGROUND Modern CT scanners with lower radiation doses have resulted in large numbers of cardiac CTs being performed in children. As seen in adults, pediatric cardiac CT has the potential to demonstrate extracardiac variants and pathology that can occur in conjunction with congenital heart disease (CHD). Prior publications demonstrated a high incidence of extracardiac findings in various locations but the prevalence of urgent unexpected extracardiac findings in children is unknown. OBJECTIVE The purpose of this study was to describe the incidence, distribution and clinical significance of the extracardiac findings on pediatric cardiac CT at a tertiary referral center. MATERIALS AND METHODS We reviewed all reports (n = 648) for 554 children through young adults who received a cardiac CT study between Jan. 2, 2018, and March 10, 2020, at our tertiary referral pediatric hospital. We interrogated CT reports for extracardiac findings and categorized them by system (airway, pulmonary, abdomen, malpositioned lines and musculoskeletal). We then subclassified each of these findings by level of clinical importance based upon the need for intervention or treatment into low, medium or high importance. High-importance findings were confirmed with a focused chart review. If a patient had more than one CT with a persistent extracardiac finding, the finding was only counted once. RESULTS We identified 562 individual extracardiac findings, with one or more extracardiac findings present in 91% of the study population. Extracardiac findings with high clinical importance, requiring urgent attention or intervention, were present in 10% (57/554) of cases. The most common location of extracardiac findings was pulmonary (50%; 280/562), followed by airway (22%; 125/562) and abdomen (9%; 52/562). CONCLUSION Unexpected highly important extracardiac findings were found in 10% of patients. Therefore, extracardiac structures should be scrutinized for the timely identification of potentially highly important findings.
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Affiliation(s)
- Daniel J Sassoon
- Department of Radiology, University of Colorado, Aurora, CO, USA
| | - Evan C Norris
- Department of Radiology, University of Colorado, Aurora, CO, USA
| | - LaDonna J Malone
- Department of Radiology, Children's Hospital Colorado, University of Colorado, 13123 E. 16th Ave., Box 125, Aurora, CO, 80045, USA
| | - Jason P Weinman
- Department of Radiology, Children's Hospital Colorado, University of Colorado, 13123 E. 16th Ave., Box 125, Aurora, CO, 80045, USA
| | - David A Mong
- Department of Radiology, Children's Hospital Colorado, University of Colorado, 13123 E. 16th Ave., Box 125, Aurora, CO, 80045, USA
| | - Alex J Barker
- Department of Radiology, Children's Hospital Colorado, University of Colorado, 13123 E. 16th Ave., Box 125, Aurora, CO, 80045, USA
| | - Lorna P Browne
- Department of Radiology, Children's Hospital Colorado, University of Colorado, 13123 E. 16th Ave., Box 125, Aurora, CO, 80045, USA.
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28
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Heidenreich PA. Can We Attribute Outcome Improvements to Improved Cardiac Imaging? JACC Cardiovasc Imaging 2023; 16:672-674. [PMID: 36881427 DOI: 10.1016/j.jcmg.2022.12.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 12/22/2022] [Indexed: 02/24/2023]
Affiliation(s)
- Paul A Heidenreich
- Department of Medicine, VA Palo Alto Healthcare System, Palo Alto, California, USA.
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Ahmed AI, Al Rifai M, Alahdab F, Saad JM, Han Y, Alfawara MS, Nabi F, Mahmarian JJ, Al-Mallah MH. Incremental prognostic value of digital positron emission tomography derived myocardial flow reserve: A prospective cohort study. Int J Cardiol 2023; 371:465-471. [PMID: 36096273 DOI: 10.1016/j.ijcard.2022.09.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/23/2022] [Accepted: 09/07/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND Positron Emission Tomography (PET) Myocardial Perfusion Imaging (MPI) is a robust diagnostic and prognostic test in patients with suspected or known coronary artery disease (CAD). We aimed to assess the incremental prognostic value of myocardial flow reserve (MFR) using the latest generation of digital PET scanners. METHODS Consecutive patients with clinically indicated PET MPI for suspected or known CAD were included. Myocardial blood flow (MBF) in ml/min/g was obtained from dynamic images at rest and peak hyperemia, and the myocardial flow reserve (MFR) was calculated as the ratio of stress to rest MBF. Patients were followed from the date of PET imaging for the occurrence of the primary outcome (composite of all-cause death, myocardial infarction, and Percutaneous Coronary Intervention or Coronary Artery Bypass Graft occurring >90 days after imaging). Nested multivariable Cox regression models were used to assess the incremental prognostic role of MFR over traditional risk factors and PET relative perfusion parameters. RESULTS The final cohort consisted of 3534 patients (mean age 67 ± 12 years, 48% female, 67% Caucasian, 53% obese, 55% hypertension, 32% diabetes, 42% dyslipidemia). During a median follow-up of 8.5 (3.0-15.4) months, 229 patients (6.5%, 6.4 per 1000 person-years) experienced the primary outcome. In nested multivariable Cox models, impaired MFR (MFR < 2) was significantly associated with the primary outcome (HR 2.9, 95% CI 2.0-4.1, p < 0.001) and significantly improved discrimination (Harrell's C 0.77, p = 0.002). CONCLUSION MFR derived from digital PET scanners has an independent and incremental prognostic role in patients with suspected or known CAD.
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Affiliation(s)
| | - Mahmoud Al Rifai
- Houston Methodist DeBakey Heart & Vascular Center, Houston, TX, USA
| | - Fares Alahdab
- Houston Methodist DeBakey Heart & Vascular Center, Houston, TX, USA
| | - Jean Michel Saad
- Houston Methodist DeBakey Heart & Vascular Center, Houston, TX, USA
| | - Yushui Han
- Houston Methodist DeBakey Heart & Vascular Center, Houston, TX, USA
| | | | - Faisal Nabi
- Houston Methodist DeBakey Heart & Vascular Center, Houston, TX, USA
| | - John J Mahmarian
- Houston Methodist DeBakey Heart & Vascular Center, Houston, TX, USA
| | - Mouaz H Al-Mallah
- Houston Methodist DeBakey Heart & Vascular Center, Houston, TX, USA.
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30
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Weberling LD, Lossnitzer D, Frey N, André F. Coronary Computed Tomography vs. Cardiac Magnetic Resonance Imaging in the Evaluation of Coronary Artery Disease. Diagnostics (Basel) 2022; 13:diagnostics13010125. [PMID: 36611417 PMCID: PMC9818886 DOI: 10.3390/diagnostics13010125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/23/2022] [Accepted: 12/28/2022] [Indexed: 01/04/2023] Open
Abstract
Coronary artery disease (CAD) represents a widespread burden to both individual and public health, steadily rising across the globe. The current guidelines recommend non-invasive anatomical or functional testing prior to invasive procedures. Both coronary computed tomography angiography (cCTA) and stress cardiac magnetic resonance imaging (CMR) are appropriate imaging modalities, which are increasingly used in these patients. Both exhibit excellent safety profiles and high diagnostic accuracy. In the last decade, cCTA image quality has improved, radiation exposure has decreased and functional information such as CT-derived fractional flow reserve or perfusion can complement anatomic evaluation. CMR has become more robust and faster, and advances have been made in functional assessment and tissue characterization allowing for earlier and better risk stratification. This review compares both imaging modalities regarding their strengths and weaknesses in the assessment of CAD and aims to give physicians rationales to select the most appropriate modality for individual patients.
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Affiliation(s)
- Lukas D. Weberling
- Department of Cardiology, Angiology and Pneumology, University Hospital Heidelberg, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Heidelberg/Mannheim, 69120 Heidelberg, Germany
- Correspondence: ; Tel.: +49-6221-8676
| | - Dirk Lossnitzer
- Department of Cardiology, Angiology and Pneumology, University Hospital Heidelberg, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany
| | - Norbert Frey
- Department of Cardiology, Angiology and Pneumology, University Hospital Heidelberg, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Heidelberg/Mannheim, 69120 Heidelberg, Germany
| | - Florian André
- Department of Cardiology, Angiology and Pneumology, University Hospital Heidelberg, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Heidelberg/Mannheim, 69120 Heidelberg, Germany
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31
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Dupouy P, Pernes JM. [Contribution of coroscanner in chronic coronary syndrome]. Ann Cardiol Angeiol (Paris) 2022; 71:356-361. [PMID: 36289031 DOI: 10.1016/j.ancard.2022.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Cardiac division imaging by coroscanner has progressed a lot in 20 years to gradually become an important and potentially indispensable tool of chronic coronary cardiology. The European and American recommendations are Grade I for the assessment of symptomatic patients at intermediate to high risk, at the same level as traditional functional tests. The development of sophisticated post-treatment algorithms that apply the equations of fluid mechanics makes it possible to calculate an FFR value at any point from the CT image of the coronary artery. This FFR-CT is correctly correlated with invasive FFR compared to a threshold value of 0.80 and helps guide therapeutic choices. Thus, the coroscanner is a complement or an alternative to traditional functional tests and is positioned as a filter of access to coronary angiography, especially since it combines, from the same examination, a precise anatomical description, and a functional evaluation of the various possible lesions. Which is the Holy Grail of coronary cardiology.
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Affiliation(s)
- Patrick Dupouy
- Pôle Cardio-Vasculaire Interventionnel, Clinique les Fontaines, 54 Boulevard Aristide Briand, 77000 Melun, France.
| | - Jean Marc Pernes
- Pôle Cardio-Vasculaire Interventionnel, Clinique les Fontaines, 54 Boulevard Aristide Briand, 77000 Melun, France
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32
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Cha MJ, Kim WD, Won H, Joo J, Kim H, Kim IC, Kim JY, Lee S, Cho I. Nationwide Trends of Gatekeeper to Invasive Coronary Angiography in Suspected Coronary Artery Disease. Korean Circ J 2022; 52:814-825. [PMID: 36217588 PMCID: PMC9643567 DOI: 10.4070/kcj.2022.0110] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 08/08/2022] [Accepted: 08/16/2022] [Indexed: 08/02/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Real-world trends in the utility and type of gatekeeping studies in invasive coronary angiography (ICA) requires further investigation. METHODS We identified outpatients who underwent noninvasive cardiac tests or directly ICA for suspected coronary artery disease (CAD) from the nationwide Korea Health Insurance Review and Assessment Service-National Patient Sample database between 2012 and 2018. RESULTS Among 71,401 patients, the percentage of patients who were evaluated for suspected CAD was 34.7% for treadmill test (TMT), 4.2% for single-photon emission computed tomography (SPECT), 24.2% for coronary computed tomography angiography (CCTA), 1.6% for multiple gatekeepers, and 32.3% for directly ICA without noninvasive studies. The proportion of CCTA as a gatekeeper showed linear increase, (18.6% in 2012 and 28.8% in 2018; p<0.001), while those of TMT, SPECT, and direct ICA have decreased (p<0.001, p=0.03, and p<0.001, respectively). The overall incidence of downstream ICA after gatekeeper was 13.8% (6,662/48,346), and SPECT showed higher ICA rate in pairwise comparison with TMT and CCTA (p<0.001). Patients who performed gatekeepers before ICA showed higher rate of subsequent PCI (34.7% vs. 32.3%; p<0.001) and CABG (3.5% vs. 1.0%; p<0.001), compared to those who directly underwent ICA, and CCTA was associated with higher revascularization rate after ICA in pairwise comparison with TMT and SPECT (p<0.001). CONCLUSIONS Nationwide database demonstrated that CCTA is utilized increasingly as a gatekeeper for ICA and is associated with high revascularization rate after ICA in outpatients with suspected CAD.
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Affiliation(s)
- Min Jae Cha
- Department of Radiology, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - William D Kim
- Division of Cardiology, Department of Internal Medicine, Yonsei University College of Medicine, Yonsei University Health System, Seoul, Korea
| | - Hoyoun Won
- Division of Cardiology, Department of Internal Medicine, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - Jaeeun Joo
- Data Science Team, Hanmi Pharm. Co., Ltd, Seoul, Korea
| | - Hasung Kim
- Data Science Team, Hanmi Pharm. Co., Ltd, Seoul, Korea
| | - In-Cheol Kim
- Division of Cardiology, Department of Internal Medicine, Keimyung University Dongsan Hospital, Keimyung University School of Medicine, Daegu, Korea
| | - Jin Young Kim
- Department of Radiology, Keimyung University Dongsan Hospital, Keimyung University School of Medicine, Daegu, Korea
| | - Seonhwa Lee
- Division of Cardiology, Department of Internal Medicine, Keimyung University Dongsan Hospital, Keimyung University School of Medicine, Daegu, Korea
| | - Iksung Cho
- Division of Cardiology, Department of Internal Medicine, Yonsei University College of Medicine, Yonsei University Health System, Seoul, Korea.
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33
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Janus SE, Karnib M, Al-Kindi SG. Reimagining Training in Cardiac CT for Cardiology Fellows. J Am Coll Cardiol 2022; 79:2543-2547. [PMID: 35738717 DOI: 10.1016/j.jacc.2022.02.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 01/21/2022] [Accepted: 02/08/2022] [Indexed: 11/16/2022]
Affiliation(s)
- Scott E Janus
- Harrington Heart and Vascular Institute, University Hospitals and Case Western Reserve University, Cleveland, Ohio, USA
| | - Mohamad Karnib
- Harrington Heart and Vascular Institute, University Hospitals and Case Western Reserve University, Cleveland, Ohio, USA
| | - Sadeer G Al-Kindi
- Harrington Heart and Vascular Institute, University Hospitals and Case Western Reserve University, Cleveland, Ohio, USA.
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34
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Einstein AJ, Hirschfeld C, Williams MC, Vitola JV, Better N, Villines TC, Cerci R, Shaw LJ, Choi AD, Dorbala S, Karthikeyan G, Lu B, Sinitsyn V, Ansheles AA, Kudo T, Bucciarelli-Ducci C, Nørgaard BL, Maurovich-Horvat P, Campisi R, Milan E, Louw L, Allam AH, Bhatia M, Sewanan L, Malkovskiy E, Cohen Y, Randazzo M, Narula J, Morozova O, Pascual TN, Pynda Y, Dondi M, Paez D. Worldwide Disparities in Recovery of Cardiac Testing 1 Year Into COVID-19. J Am Coll Cardiol 2022; 79:2001-2017. [PMID: 35589162 PMCID: PMC9109706 DOI: 10.1016/j.jacc.2022.03.348] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 02/21/2022] [Accepted: 03/10/2022] [Indexed: 01/27/2023]
Abstract
BACKGROUND The extent to which health care systems have adapted to the COVID-19 pandemic to provide necessary cardiac diagnostic services is unknown. OBJECTIVES The aim of this study was to determine the impact of the pandemic on cardiac testing practices, volumes and types of diagnostic services, and perceived psychological stress to health care providers worldwide. METHODS The International Atomic Energy Agency conducted a worldwide survey assessing alterations from baseline in cardiovascular diagnostic care at the pandemic's onset and 1 year later. Multivariable regression was used to determine factors associated with procedure volume recovery. RESULTS Surveys were submitted from 669 centers in 107 countries. Worldwide reduction in cardiac procedure volumes of 64% from March 2019 to April 2020 recovered by April 2021 in high- and upper middle-income countries (recovery rates of 108% and 99%) but remained depressed in lower middle- and low-income countries (46% and 30% recovery). Although stress testing was used 12% less frequently in 2021 than in 2019, coronary computed tomographic angiography was used 14% more, a trend also seen for other advanced cardiac imaging modalities (positron emission tomography and magnetic resonance; 22%-25% increases). Pandemic-related psychological stress was estimated to have affected nearly 40% of staff, impacting patient care at 78% of sites. In multivariable regression, only lower-income status and physicians' psychological stress were significant in predicting recovery of cardiac testing. CONCLUSIONS Cardiac diagnostic testing has yet to recover to prepandemic levels in lower-income countries. Worldwide, the decrease in standard stress testing is offset by greater use of advanced cardiac imaging modalities. Pandemic-related psychological stress among providers is widespread and associated with poor recovery of cardiac testing.
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Affiliation(s)
- Andrew J. Einstein
- Seymour, Paul and Gloria Milstein Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center and NewYork-Presbyterian Hospital, New York, New York, USA,Department of Medicine, Columbia University Irving Medical Center and NewYork-Presbyterian Hospital, New York, New York, USA,Department of Radiology, Columbia University Irving Medical Center and NewYork-Presbyterian Hospital, New York, New York, USA,Address for correspondence: Dr Andrew J. Einstein, Columbia University Irving Medical Center, Seymour, Paul and Gloria Milstein Division of Cardiology, 622 West 168th Street, PH 10-203, New York, New York 10032, USA
| | - Cole Hirschfeld
- Division of Cardiology, Weill Cornell Medicine and NewYork-Presbyterian Hospital, New York, New York, USA
| | - Michelle C. Williams
- BHF Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, United Kingdom
| | | | - Nathan Better
- Royal Melbourne Hospital and University of Melbourne, Melbourne, Victoria, Australia
| | | | | | - Leslee J. Shaw
- Blavatnik Family Women’s Health Research Institute, Mount Sinai Medical Center, New York, New York, USA
| | - Andrew D. Choi
- The George Washington University School of Medicine, Washington, District of Columbia, USA
| | | | - Ganesan Karthikeyan
- Department of Cardiology, All India Institute of Medical Sciences, New Delhi, India
| | - Bin Lu
- National Center for Cardiovascular Diseases, Beijing, China
| | - Valentin Sinitsyn
- University Hospital, Lomonosov Moscow State University, Moscow, Russian Federation
| | - Alexey A. Ansheles
- National Medical Research Center of Cardiology of Healthcare Ministry, Moscow, Russian Federation
| | | | - Chiara Bucciarelli-Ducci
- Royal Brompton and Harefield Hospitals, Guys’ and St Thomas NHS Trust and King’s College London, London, United Kingdom
| | | | - Pál Maurovich-Horvat
- Department of Radiology, Medical Imaging Centre, Semmelweis University, Budapest, Hungary
| | | | | | - Lizette Louw
- University of the Witwatersrand, Johannesburg, South Africa
| | | | - Mona Bhatia
- Fortis Escorts Heart Institute, New Delhi, India
| | - Lorenzo Sewanan
- Department of Medicine, Columbia University Irving Medical Center and NewYork-Presbyterian Hospital, New York, New York, USA
| | - Eli Malkovskiy
- Seymour, Paul and Gloria Milstein Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center and NewYork-Presbyterian Hospital, New York, New York, USA,Department of Medicine, Columbia University Irving Medical Center and NewYork-Presbyterian Hospital, New York, New York, USA
| | - Yosef Cohen
- Technion Israel Institute of Technology, Haifa, Israel
| | - Michael Randazzo
- Department of Medicine, Columbia University Irving Medical Center and NewYork-Presbyterian Hospital, New York, New York, USA
| | - Jagat Narula
- Mount Sinai Medical Center, New York, New York, USA
| | - Olga Morozova
- Division of Human Health, Department of Nuclear Sciences and Applications, International Atomic Energy Agency, Vienna, Austria
| | | | - Yaroslav Pynda
- Division of Human Health, Department of Nuclear Sciences and Applications, International Atomic Energy Agency, Vienna, Austria
| | - Maurizio Dondi
- Division of Human Health, Department of Nuclear Sciences and Applications, International Atomic Energy Agency, Vienna, Austria
| | - Diana Paez
- Division of Human Health, Department of Nuclear Sciences and Applications, International Atomic Energy Agency, Vienna, Austria
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Slomka P. Future of nuclear cardiology is bright: Promise of cardiac PET/CT and artificial intelligence. J Nucl Cardiol 2022; 29:389-391. [PMID: 35244874 DOI: 10.1007/s12350-022-02942-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 02/17/2022] [Indexed: 11/26/2022]
Affiliation(s)
- Piotr Slomka
- Division of Artificial Intelligence, Department of Medicine, Cedars-Sinai, Los Angeles, USA.
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36
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Sandfort V, Bluemke DA. Overcoming a Technological Hurdle: Coronary CT Angiography with Photon-counting CT. Radiology 2022; 303:314-316. [PMID: 35166592 DOI: 10.1148/radiol.212943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Veit Sandfort
- From the Department of Radiology, Stanford University School of Medicine, 300 Pasteur Dr, Stanford, CA 94305-5105 (V.S.); and Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, Wis (D.A.B.)
| | - David A Bluemke
- From the Department of Radiology, Stanford University School of Medicine, 300 Pasteur Dr, Stanford, CA 94305-5105 (V.S.); and Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, Wis (D.A.B.)
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