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Du Y, Ding S, Li C, Bai Y, Wang X, Li D, Xie Y, Fan G, Wu LM, Wang G. Coronary artery wall contrast enhancement imaging impact on disease activity assessment in IgG4-RD: a direct marker of coronary involvement. J Cardiovasc Magn Reson 2024; 26:101047. [PMID: 38825155 DOI: 10.1016/j.jocmr.2024.101047] [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: 01/10/2024] [Revised: 04/23/2024] [Accepted: 05/25/2024] [Indexed: 06/04/2024] Open
Abstract
BACKGROUND Coronary artery wall contrast enhancement (CE) has been applied to non-invasive visualization of changes to the coronary artery wall in systemic lupus erythematosus (SLE). This study investigated the feasibility of quantifying CE to detect coronary involvement in IgG4-related disease (IgG4-RD), as well as the influence on disease activity assessment. METHODS A total of 93 subjects (31 IgG4-RD; 29 SLE; 33 controls) were recruited in the study. Coronary artery wall imaging was performed in a 3.0 T MRI scanner. Serological markers and IgG4-RD Responder Index (IgG4-RD-RI) scores were collected for correlation analysis. RESULTS Coronary wall CE was observed in 29 (94 %) IgG4-RD patients and 22 (76 %) SLE patients. Contrast-to-noise ratio (CNR) and total CE area were significantly higher in patient groups compared to controls (CNR: 6.1 ± 2.7 [IgG4-RD] v. 4.2 ± 2.3 [SLE] v. 1.9 ± 1.5 [control], P < 0.001; Total CE area: 3.0 [3.0-6.6] v. 1.7 [1.5-2.6] v. 0.3 [0.3-0.9], P < 0.001). In the IgG4-RD group, CNR and total CE area were correlated with the RI (CNR: r = 0.55, P = 0.002; total CE area: r = 0.39, P = 0.031). RI´ scored considering coronary involvement by CE, differed significantly from RI scored without consideration of CE (RI v. RI´: 15 ± 6 v. 16 ± 6, P < 0.001). CONCLUSIONS Visualization and quantification of CMR coronary CE by CNR and total CE area could be utilized to detect subclinical and clinical coronary wall involvement, which is prevalent in IgG4-RD. The potential inclusion of small and medium-sized vessel involvements in the assessment of disease activity in IgG4-RD is worthy of further investigation.
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Affiliation(s)
- Yaqi Du
- Department of Radiology, the First Hospital of China Medical University, Shenyang, China
| | - Shuang Ding
- Department of rheumatology and immunology, the First Hospital of China Medical University, Shenyang, China
| | - Ce Li
- Department of Medical Oncology, the First Hospital of China Medical University, Shenyang, China
| | - Yun Bai
- Department of Radiology, the First Hospital of China Medical University, Shenyang, China
| | - Xinrui Wang
- Department of Radiology, the First Hospital of China Medical University, Shenyang, China
| | - Debiao Li
- Biomedical Imaging Research Institute, Cedars Sinai Medical Center, Los Angeles, California
| | - Yibin Xie
- Biomedical Imaging Research Institute, Cedars Sinai Medical Center, Los Angeles, California
| | - Guoguang Fan
- Department of Radiology, the First Hospital of China Medical University, Shenyang, China.
| | - Lian-Ming Wu
- Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - Guan Wang
- Department of Radiology, the First Hospital of China Medical University, Shenyang, China.
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Iyer NR, Chan SP, Liew OW, Chong JPC, Bryant JA, Le TT, Chandramouli C, Cozzone PJ, Eisenhaber F, Foo R, Richards AM, Lam CSP, Ugander M, Chin CWL. Global longitudinal strain and plasma biomarkers for prognosis in heart failure complicated by diabetes: a prospective observational study. BMC Cardiovasc Disord 2024; 24:141. [PMID: 38443793 PMCID: PMC10913625 DOI: 10.1186/s12872-024-03810-5] [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: 11/19/2023] [Accepted: 02/22/2024] [Indexed: 03/07/2024] Open
Abstract
BACKGROUND Heart failure (HF) and diabetes are associated with increased incidence and worse prognosis of each other. The prognostic value of global longitudinal strain (GLS) measured by cardiovascular magnetic resonance (CMR) has not been established in HF patients with diabetes. METHODS In this prospective, observational study, consecutive patients (n = 315) with HF underwent CMR at 3T, including GLS, late gadolinium enhancement (LGE), native T1, and extracellular volume fraction (ECV) mapping. Plasma biomarker concentrations were measured including: N-terminal pro B-type natriuretic peptide(NT-proBNP), high-sensitivity troponin T(hs-TnT), growth differentiation factor 15(GDF-15), soluble ST2(sST2), and galectin 3(Gal-3). The primary outcome was a composite of all-cause mortality or HF hospitalisation. RESULTS Compared to those without diabetes (n = 156), the diabetes group (n = 159) had a higher LGE prevalence (76 vs. 60%, p < 0.05), higher T1 (1285±42 vs. 1269±42ms, p < 0.001), and higher ECV (30.5±3.5 vs. 28.8±4.1%, p < 0.001). The diabetes group had higher NT-pro-BNP, hs-TnT, GDF-15, sST2, and Gal-3. Diabetes conferred worse prognosis (hazard ratio (HR) 2.33 [95% confidence interval (CI) 1.43-3.79], p < 0.001). In multivariable Cox regression analysis including clinical markers and plasma biomarkers, sST2 alone remained independently associated with the primary outcome (HR per 1 ng/mL 1.04 [95% CI 1.02-1.07], p = 0.001). In multivariable Cox regression models in the diabetes group, both GLS and sST2 remained prognostic (GLS: HR 1.12 [95% CI 1.03-1.21], p = 0.01; sST2: HR per 1 ng/mL 1.03 [95% CI 1.00-1.06], p = 0.02). CONCLUSIONS Compared to HF patients without diabetes, those with diabetes have worse plasma and CMR markers of fibrosis and a more adverse prognosis. GLS by CMR is a powerful and independent prognostic marker in HF patients with diabetes.
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Affiliation(s)
- Nithin R Iyer
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore, Singapore
- Kolling Institute, Royal North Shore Hospital, University of Sydney, Sydney, Australia
| | - Siew-Pang Chan
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Oi Wah Liew
- Cardiovascular Research Institute, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Jenny P C Chong
- Cardiovascular Research Institute, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Jennifer A Bryant
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore, Singapore
| | - Thu-Thao Le
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore, Singapore
- Cardiovascular Sciences ACP, Duke-NUS Medical School, Singapore, Singapore
| | - Chanchal Chandramouli
- National Heart Centre Singapore, Singapore, Singapore
- Duke-NUS Medical School, Singapore, Singapore
| | - Patrick J Cozzone
- Agency for Science, Technology and Research, Singapore Bioimaging Consortium, Singapore, Singapore
| | - Frank Eisenhaber
- Bioinformatics Institute, Agency for Science, Technology and Research, Singapore, Singapore
- LASA - Lausitz Advanced Scientific Applications gGmbH, Weißwasser, Germany
- School of Biological Sciences, Nanyang Technological University, Singapore, Singapore
| | - Roger Foo
- Cardiovascular Research Institute, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Agency for Science, Technology and Research, Genome Institute of Singapore, Singapore, Singapore
| | - A Mark Richards
- Cardiovascular Research Institute, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Christchurch Heart Institute, University of Otago, Christchurch, New Zealand
| | - Carolyn S P Lam
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore, Singapore
- National Heart Centre Singapore, Singapore, Singapore
- Duke-NUS Medical School, Singapore, Singapore
- University Medical Centre Groningen, Groningen, The Netherlands
| | - Martin Ugander
- Kolling Institute, Royal North Shore Hospital, University of Sydney, Sydney, Australia
- Department of Clinical Physiology, Karolinska University Hospital, and Karolinska Institutet, Stockholm, Sweden
| | - Calvin W-L Chin
- Cardiovascular Sciences ACP, Duke-NUS Medical School, Singapore, Singapore.
- National Heart Centre Singapore, Singapore, Singapore.
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Ungericht M, Groaz V, Messner M, Schuetz T, Brunelli L, Zaruba MM, Lener D, Stocker E, Bauer A, Kroiss AS, Mayr A, Röcken C, Poelzl G. Correlation of 99mTc-DPD bone scintigraphy with histological amyloid load in patients with ATTR cardiac amyloidosis. Amyloid 2024; 31:22-31. [PMID: 37530216 DOI: 10.1080/13506129.2023.2239986] [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: 02/26/2023] [Accepted: 07/18/2023] [Indexed: 08/03/2023]
Abstract
BACKGROUND The significance of measuring 99mTc-labelled-3,3-diphosphono-1,2-propanodicarboxylic acid (99mTc-DPD) in transthyretin (ATTR) cardiac amyloidosis has not been adequately studied. This single-centre observational study evaluated the correlation between 99mTc-DPD scintigraphy and histological amyloid load in endomyocardial biopsy (EMB). METHODS Twenty-eight patients with biopsy-proven ATTR amyloidosis and concomitantly available 99mTc-DPD scintigraphy were included. Visual Perugini scoring, and (semi-)quantitative analysis of cardiac 99mTc-DPD uptake by planar whole-body imaging and single photon emission computed tomography (SPECT/CT) using regions of interest (ROI) were performed. From this, heart-to-whole-body ratio (H/WB) and heart-to-contralateral-chest ratio (H/CL) were calculated. The histological amyloid load was quantified using two different staining methods. RESULTS Increased cardiac tracer uptake was documented in all patients (planar: ROImean 129 ± 37 cps; SPECT/CT: ROImean 369 ± 142 cps). Histological amyloid load (19 ± 13%) significantly correlated with Perugini score (r = 0.69, p < .001) as well as with cardiac 99mTc-DPD uptake (planar: r = 0.64, p < .001; H/WB: r = 0.50, p = .014; SPECT/CT: r = 0.53, p = .008; H/CL: r = 0.43, p = .037) (results are shown for correlations with Congo Red-staining). CONCLUSION In ATTR, cardiac 99mTc-DPD uptake significantly correlated with histological amyloid load in EMB. Further studies are needed to implement thresholds in cardiac 99mTc-DPD uptake measurements for risk stratification and guidance of therapy.
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Affiliation(s)
- Maria Ungericht
- Department of Internal Medicine III, Cardiology and Angiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Valeria Groaz
- Department of Emergency Medicine, Klinik Arlesheim, Arlesheim, Switzerland
| | - Moritz Messner
- Department of Internal Medicine III, Cardiology and Angiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Thomas Schuetz
- Department of Internal Medicine III, Cardiology and Angiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Luca Brunelli
- Department of Internal Medicine III, Cardiology and Angiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Marc-Michael Zaruba
- Department of Internal Medicine III, Cardiology and Angiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Daniela Lener
- Department of Internal Medicine III, Cardiology and Angiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Eva Stocker
- Department of Internal Medicine III, Cardiology and Angiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Axel Bauer
- Department of Internal Medicine III, Cardiology and Angiology, Medical University of Innsbruck, Innsbruck, Austria
| | | | - Agnes Mayr
- Department of Radiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Christoph Röcken
- Department of Pathology, Christian-Albrechts-University, Kiel, Germany
| | - Gerhard Poelzl
- Department of Internal Medicine III, Cardiology and Angiology, Medical University of Innsbruck, Innsbruck, Austria
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Yin J, Qin J, Liu W, Zhu Y, Zhou X, Wang Y, Zhu X, Xu Y. A comparative study of synthetic and venous hematocrit for calculating cardiovascular magnetic resonance-derived extracellular volume. THE INTERNATIONAL JOURNAL OF CARDIOVASCULAR IMAGING 2024:10.1007/s10554-023-03044-0. [PMID: 38175388 DOI: 10.1007/s10554-023-03044-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 12/26/2023] [Indexed: 01/05/2024]
Abstract
The extracellular volume (ECV) fraction derived from cardiac magnetic resonance (CMR) can reflect various pathologies. The application of ECVs was limited by the strict requirement that hematocrit (Hct0) should be obtained within 24 hours of CMR scan. The aim of this study was to obtain accurate and convenient ECV calculated from the venous Hct and synthetic Hct in CMR. A total of 839 subjects were retrospectively enrolled. The subjects were divided into derivation cohort for local sex-specific models and validation cohort for assessing the accuracy of different ECVs. In the validation cohort, venous Hcts from 7 days before the scan (Hct1 - 7), outside 7 days (Hct> 7), the closest day (Hctclosest), and Hctsyn were compared with Hct0. The agreement and correlation of the conventional ECV (ECV0) with the corresponding ECVs were analyzed. The factors affecting the accuracy of ECVsyn were assessed. ECV1-7 and ECVclosest had the best correlation and smallest bias with ECV0 (R = 0.959 and 0.951, bias = 0.02% and - 0.03%). When using an absolute 2% error as the standard, the performance of ECV1-7 was the best, with an accuracy of 81.0%, followed by ECVclosest (78.8%), ECV> 7 (77.2%) and ECVsyn (70.7%). Abnormally low and high Hcts and decreased left ventricular ejection fractions were associated with miscalculation of ECVsyn, especially patients with dilated cardiomyopathy. We recommend extending the time interval between a Hct and a CMR scan to 7 days for ECV calculation. The synthetic ECV should be used cautiously, especially for patients with extremely low or high Hcts, decreased cardiac function, and dilated cardiomyopathy.
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Affiliation(s)
- Jiani Yin
- Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, No. 300, Guangzhou Rd, Nanjing, 210029, China
| | - Jie Qin
- Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, No. 300, Guangzhou Rd, Nanjing, 210029, China
| | - Wangyan Liu
- Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, No. 300, Guangzhou Rd, Nanjing, 210029, China
| | - Yinsu Zhu
- Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, No. 300, Guangzhou Rd, Nanjing, 210029, China
| | - Xiaoyue Zhou
- MR Collaboration, Siemens Healthineers Ltd, Shanghai, 200126, China
| | - Yunfei Wang
- Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, No. 300, Guangzhou Rd, Nanjing, 210029, China
| | - Xiaomei Zhu
- Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, No. 300, Guangzhou Rd, Nanjing, 210029, China
| | - Yi Xu
- Department of Radiology, The First Affiliated Hospital of Nanjing Medical University, No. 300, Guangzhou Rd, Nanjing, 210029, China.
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Steffen Johansson R, Tornvall P, Sörensson P, Nickander J. Reduced stress perfusion in myocardial infarction with nonobstructive coronary arteries. Sci Rep 2023; 13:22094. [PMID: 38086910 PMCID: PMC10716406 DOI: 10.1038/s41598-023-49223-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 12/05/2023] [Indexed: 12/18/2023] Open
Abstract
Myocardial infarction with nonobstructive coronary arteries (MINOCA) has several possible underlying causes, including coronary microvascular dysfunction (CMD). Early cardiovascular magnetic resonance imaging (CMR) is recommended, however cannot provide a diagnosis in 25% of cases. Quantitative stress CMR perfusion mapping can identify CMD, however it is unknown if CMD is present during long-term follow-up of MINOCA patients. Therefore, this study aimed to evaluate presence of CMD during long-term follow-up in MINOCA patients with an initial normal CMR scan. MINOCA patients from the second Stockholm myocardial infarction with normal coronaries study (SMINC-2), with a normal CMR scan at median 3 days after hospitalization were investigated with comprehensive CMR including stress perfusion mapping a median of 5 years after the index event, together with age- and sex-matched volunteers without symptomatic ischemic heart disease. Cardiovascular risk factors, medication and symptoms of myocardial ischemia measured by the Seattle Angina Questionnaire 7 (SAQ-7), were registered. In total, 15 patients with MINOCA and an initial normal CMR scan (59 ± 7 years old, 60% female), and 15 age- and sex-matched volunteers, underwent CMR. Patients with MINOCA and an initial normal CMR scan had lower global stress perfusion compared to volunteers (2.83 ± 1.8 vs 3.53 ± 0.7 ml/min/g, p = 0.02). There were no differences in other CMR parameters, hemodynamic parameters, or cardiovascular risk factors, except for more frequent use of statins in the MINOCA patient group compared to volunteers. In conclusion, global stress perfusion is lower in MINOCA patients during follow-up, compared to age- and sex-matched volunteers, suggesting that CMD may be a possible pathophysiological mechanism in MINOCA.Clinical Trial Registration: Clinicaltrials.gov identifier NCT02318498. Registered 2014-12-17.
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Affiliation(s)
- Rebecka Steffen Johansson
- Department of Clinical Physiology, Karolinska Institutet, Stockholm, Sweden
- Klinisk Fysiologi A8:01, Karolinska University Hospital, Solna, Eugeniavägen 23, 171 76, Stockholm, Sweden
| | - Per Tornvall
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
- Cardiology Unit, Södersjukhuset, Stockholm, Sweden
| | - Peder Sörensson
- Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
- Department of Cardiology, Karolinska University Hospital, Stockholm, Sweden
| | - Jannike Nickander
- Department of Clinical Physiology, Karolinska Institutet, Stockholm, Sweden.
- Klinisk Fysiologi A8:01, Karolinska University Hospital, Solna, Eugeniavägen 23, 171 76, Stockholm, Sweden.
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Luo S, Xu ST, Zhang J, Schoepf UJ, Varga-Szemes A, Carpenter CRT, Zhang LY, Ma Y, Li Z, Wang Y, Huang WW, Zhi BB, Dou WQ, Qi L, Zhang LJ. Multiparametric cardiac magnetic resonance reveals persistent myocardial inflammation in patients with exertional heat illness. Eur Radiol 2023; 33:8165-8176. [PMID: 37145150 DOI: 10.1007/s00330-023-09706-w] [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: 10/07/2022] [Revised: 02/26/2023] [Accepted: 03/12/2023] [Indexed: 05/06/2023]
Abstract
OBJECTIVES To explore the clinical potential of multiparametric cardiac magnetic resonance (CMR) in evaluating myocardial inflammation in patients with exertional heat illness (EHI). METHODS This prospective study enrolled 28 males with EHI (18 patients with exertional heat exhaustion (EHE) and 10 with exertional heat stroke (EHS)) and 18 age-matched male healthy controls (HC). All subjects underwent multiparametric CMR, and 9 patients had follow-up CMR measurements 3 months after recovery from EHI. CMR-derived left ventricular geometry, function, strain, native T1, extracellular volume (ECV), T2, T2*, and late gadolinium enhancement (LGE) were obtained and compared among different groups. RESULTS Compared with HC, EHI patients showed increased global ECV, T2, and T2* values (22.6% ± 4.1 vs. 19.7% ± 1.7; 46.8 ms ± 3.4 vs. 45.1 ms ± 1.2; 25.5 ms ± 2.2 vs. 23.8 ms ± 1.7; all p < 0.05). Subgroup analysis showed that ECV was higher in the EHS patients than those in EHE and HC groups (24.7% ± 4.9 vs. 21.4% ± 3.2, 24.7% ± 4.9 vs. 19.7% ± 1.7; both p < 0.05). Repeated CMR measurements at 3 months after baseline CMR showed persistently higher ECV than HC (p = 0.042). CONCLUSIONS With multiparametric CMR, EHI patients demonstrated increased global ECV, T2, and persistent myocardial inflammation at 3-month follow-up after EHI episode. Therefore, multiparametric CMR might be an effective method in evaluating myocardial inflammation in patients with EHI. CLINICAL RELEVANCE STATEMENT This study showed persistent myocardial inflammation after an exertional heat illness (EHI) episode demonstrated by multiparametric CMR, which is a potential promising method to evaluate the severity of myocardial inflammation and guide return to work, play, or duty in EHI patients. KEY POINTS • EHI patients showed an increased global extracellular volume (ECV), late gadolinium enhancement, and T2 value, indicating myocardial edema and fibrosis. • ECV was higher in the exertional heat stroke patients than exertional heat exhaustion and healthy control groups (24.7% ± 4.9 vs. 21.4% ± 3.2, 24.7% ± 4.9 vs. 19.7% ± 1.7; both p < 0.05). • EHI patients showed persistent myocardial inflammation with higher ECV than healthy controls 3 months after index CMR (22.3% ± 2.4 vs. 19.7% ± 1.7, p = 0.042).
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Affiliation(s)
- Song Luo
- Department of Diagnostic Radiology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, 305 Zhongshan East Road, Xuanwu District, Nanjing, 210002, Jiangsu Province, China
| | - Shu Tian Xu
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Jun Zhang
- Department of Diagnostic Radiology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, 305 Zhongshan East Road, Xuanwu District, Nanjing, 210002, Jiangsu Province, China
| | - U Joseph Schoepf
- Division of Cardiovascular Imaging, Department of Radiology and Radiological Science, Medical University of South Carolina, 25 Courtenay Dr, Charleston, SC, 29425, USA
| | - Akos Varga-Szemes
- Division of Cardiovascular Imaging, Department of Radiology and Radiological Science, Medical University of South Carolina, 25 Courtenay Dr, Charleston, SC, 29425, USA
| | | | - Ling Yan Zhang
- Department of Diagnostic Radiology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, 305 Zhongshan East Road, Xuanwu District, Nanjing, 210002, Jiangsu Province, China
| | - Yan Ma
- Department of Diagnostic Radiology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, 305 Zhongshan East Road, Xuanwu District, Nanjing, 210002, Jiangsu Province, China
| | - Zhe Li
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Yang Wang
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Wei Wei Huang
- Department of Diagnostic Radiology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, 305 Zhongshan East Road, Xuanwu District, Nanjing, 210002, Jiangsu Province, China
| | - Bei Bei Zhi
- Department of Diagnostic Radiology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, 305 Zhongshan East Road, Xuanwu District, Nanjing, 210002, Jiangsu Province, China
| | | | - Li Qi
- Department of Diagnostic Radiology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, 305 Zhongshan East Road, Xuanwu District, Nanjing, 210002, Jiangsu Province, China.
| | - Long Jiang Zhang
- Department of Diagnostic Radiology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, 305 Zhongshan East Road, Xuanwu District, Nanjing, 210002, Jiangsu Province, China.
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Wang J, Meng Y, Han S, Hu C, Lu Y, Wu P, Han L, Xu Y, Xu K. Predictive value of total ischaemic time and T1 mapping after emergency percutaneous coronary intervention in acute ST-segment elevation myocardial infarction. Clin Radiol 2023; 78:e724-e731. [PMID: 37460337 DOI: 10.1016/j.crad.2023.06.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 04/05/2023] [Accepted: 06/12/2023] [Indexed: 09/03/2023]
Abstract
AIM To investigate the predictive value of ischaemic time and cardiac magnetic resonance imaging (CMRI) T1 mapping in acute ST-segment elevation myocardial infarction (STEMI) patients undergoing primary percutaneous coronary intervention (PCI). MATERIALS AND METHODS A total of 127 patients with STEMI treated by primary PCI were studied. All patients underwent CMRI with native T1 and extracellular volume (ECV) measurement, 61 of whom also had 4-month follow-up data. The total ischaemic (symptom onset to balloon, S2B) time expressed in minutes was recorded. CMRI cine, T1 mapping, and late gadolinium enhancement (LGE) images were analysed to evaluate left ventricular (LV) function, T1 value, ECV, and myocardial infract (MI) scar characteristics, respectively. The correlation between S2B time and T1 mapping was evaluated. The predictive values of S2B time and T1 mapping for large final infarct size were estimated. RESULTS The incidence of microvascular obstruction (MVO) increased with the prolongation of ischaemia time. Regardless of MVO or not, ECV in myocardial infarction (ECVMI) was significantly correlated with S2B time (r=0.61, p<0.001), while native T1 in MI (T1MI) was not (r=-0.19, p=0.029). In the 4-month follow-up, native T1MI was improved (1385.1 ± 90.4 versus 1288.6 ± 74 ms, p<0.001). Furthermore, ECVMI was independently associated with final larger infarct size (AUC = 0.89, 95% confidence interval [CI] = 0.81-0.98, p<0.001) in multivariable regression analysis. CONCLUSION ECVMI was correlated with total ischaemic time and was an independent predictor of final larger infarct size.
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Affiliation(s)
- J Wang
- Department of Radiology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Y Meng
- Department of Radiology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - S Han
- Department of Radiology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - C Hu
- Department of Radiology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Y Lu
- Department of Cardiac Care Unit, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - P Wu
- Philips Healthcare, Shanghai, China
| | - L Han
- Philips Healthcare, Shanghai, China
| | - Y Xu
- Philips Healthcare, Guangzhou, China
| | - K Xu
- Department of Radiology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China.
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8
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Thavendiranathan P, Houbois C, Marwick TH, Kei T, Saha S, Runeckles K, Huang F, Shalmon T, Thorpe KE, Pezo RC, Prica A, Maze D, Abdel-Qadir H, Connelly KA, Chan J, Billia F, Power C, Hanneman K, Wintersperger BJ, Brezden-Masley C, Amir E. Statins to prevent early cardiac dysfunction in cancer patients at increased cardiotoxicity risk receiving anthracyclines. EUROPEAN HEART JOURNAL. CARDIOVASCULAR PHARMACOTHERAPY 2023; 9:515-525. [PMID: 37120736 PMCID: PMC10509566 DOI: 10.1093/ehjcvp/pvad031] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 04/12/2023] [Accepted: 04/28/2023] [Indexed: 05/01/2023]
Abstract
BACKGROUND AND AIMS Anthracyclines can cause cancer therapy-related cardiac dysfunction (CTRCD). We aimed to assess whether statins prevent decline in left ventricular ejection fraction (LVEF) in anthracycline-treated patients at increased risk for CTRCD. METHODS In this multicenter double-blinded, placebo-controlled trial, patients with cancer at increased risk of anthracycline-related CTRCD (per ASCO guidelines) were randomly assigned to atorvastatin 40 mg or placebo once-daily. Cardiovascular magnetic resonance (CMR) imaging was performed before and within 4 weeks after anthracyclines. Blood biomarkers were measured at every cycle. The primary outcome was post-anthracycline LVEF, adjusted for baseline. CTRCD was defined as a fall in LVEF by >10% to <53%. Secondary endpoints included left ventricular (LV) volumes, CTRCD, CMR tissue characterization, high sensitivity troponin I (hsTnI), and B-type natriuretic peptide (BNP). RESULTS We randomized 112 patients (56.9 ± 13.6 years, 87 female, and 73 with breast cancer): 54 to atorvastatin and 58 to placebo. Post-anthracycline CMR was performed 22 (13-27) days from last anthracycline dose. Post-anthracycline LVEF did not differ between the atorvastatin and placebo groups (57.3 ± 5.8% and 55.9 ± 7.4%, respectively) when adjusted for baseline LVEF (P = 0.34). There were no significant between-group differences in post-anthracycline LV end-diastolic (P = 0.20) or end-systolic volume (P = 0.12), CMR myocardial edema and/or fibrosis (P = 0.06-0.47), or peak hsTnI (P ≥ 0.99) and BNP (P = 0.23). CTRCD incidence was similar (4% versus 4%, P ≥ 0.99). There was no difference in adverse events. CONCLUSIONS In patients at increased risk of CTRCD, primary prevention with atorvastatin during anthracycline therapy did not ameliorate early LVEF decline, LV remodeling, CTRCD, change in serum cardiac biomarkers, or CMR myocardial tissue changes. TRIAL REGISTRATION NCT03186404.
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Affiliation(s)
- Paaladinesh Thavendiranathan
- Department of Medicine, Division of Cardiology, Ted Rogers Program in Cardiotoxicity Prevention, Peter Munk Cardiac Centre, Toronto General Hospital, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Christian Houbois
- Department of Medical Imaging, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
- Department of Medical Imaging, University of Toronto, Toronto, ON, Canada
| | - Thomas H Marwick
- Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia; Baker Department of Cardiometabolic Health, University of Melbourne, Melbourne, Victoria, Australia
| | - Tiffanie Kei
- Department of Medicine, Division of Cardiology, Ted Rogers Program in Cardiotoxicity Prevention, Peter Munk Cardiac Centre, Toronto General Hospital, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Sudipta Saha
- Rogers Computational Program, Ted Rogers Centre for Heart Research, Peter Munk Cardiac Centre, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Kyle Runeckles
- Rogers Computational Program, Ted Rogers Centre for Heart Research, Peter Munk Cardiac Centre, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Flora Huang
- Department of Medicine, Division of Cardiology, Ted Rogers Program in Cardiotoxicity Prevention, Peter Munk Cardiac Centre, Toronto General Hospital, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Tamar Shalmon
- Department of Medicine, Division of Cardiology, Ted Rogers Program in Cardiotoxicity Prevention, Peter Munk Cardiac Centre, Toronto General Hospital, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Kevin E Thorpe
- Dalla Lana School of Public Health, University of Toronto and Applied Health Research Centre, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON, Canada
| | - Rossanna C Pezo
- Department of Medicine, Division of Medical Oncology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | - Anca Prica
- Department of Medicine, Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Dawn Maze
- Department of Medicine, Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Husam Abdel-Qadir
- Department of Medicine, Division of Cardiology, Ted Rogers Program in Cardiotoxicity Prevention, Peter Munk Cardiac Centre, Toronto General Hospital, University Health Network, University of Toronto, Toronto, ON, Canada
- Women's College Hospital (WCH), Toronto, ON, Canada
| | - Kim A Connelly
- Keenan Research Centre, Li Ka Shing Knowledge Institute, Division of Cardiology, St. Michael's Hospital, University of Toronto, Toronto, ON, Canada
| | - Joyce Chan
- Division of Cardiology, Peter Munk Cardiac Centre, Toronto General Hospital, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Filio Billia
- Division of Cardiology, Peter Munk Cardiac Centre, Toronto General Hospital, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Coleen Power
- Department of Medicine, Division of Cardiology, Ted Rogers Program in Cardiotoxicity Prevention, Peter Munk Cardiac Centre, Toronto General Hospital, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Kate Hanneman
- Joint Department of Medical Imaging, Toronto General Hospital, University Health Network, University of Toronto, Toronto, ON, Canada
- Department of Medical Imaging, University of Toronto, Toronto, ON, Canada
| | - Bernd J Wintersperger
- Joint Department of Medical Imaging, Toronto General Hospital, University Health Network, University of Toronto, Toronto, ON, Canada
- Department of Medical Imaging, University of Toronto, Toronto, ON, Canada
| | - Christine Brezden-Masley
- Department of Medicine, Division of Medical Oncology, Mount Sinai Hospital, University of Toronto, Toronto, ON, Canada
| | - Eitan Amir
- Department of Medicine, Division of Medical Oncology, Program, Princess Margaret Cancer Centre, University Health Network, University of Toronto, Toronto, ON, Canada
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Axel L. Modeling of factors affecting late gadolinium enhancement kinetics in MRI of cardiac amyloid. J Cardiovasc Magn Reson 2023; 25:46. [PMID: 37563646 PMCID: PMC10413700 DOI: 10.1186/s12968-023-00952-x] [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: 01/19/2023] [Accepted: 07/07/2023] [Indexed: 08/12/2023] Open
Abstract
BACKGROUND Late gadolinium enhancement (LGE) is a valuable part of cardiac magnetic resonance imaging (CMR). In particular, inversion-recovery imaging of LGE, with nulling of the signal from reference areas of myocardium, can have a distinctive pattern in some patients with cardiac amyloid, including both diffuse (relatively faint) subendocardial LGE and a relatively dark appearance of the blood. However, the underlying reasons for this distinctive appearance have not previously been well investigated. Pharmacokinetic modeling of myocardial contrast enhancement kinetics can potentially provide insight into the mechanisms of the distinctive LGE appearance that can be seen in cardiac amyloid, as well as why it may be unreliable in some patients. METHODS An interactive three-compartment pharmacokinetic model of the dynamics of myocardial contrast enhancement in CMR was implemented, and used to simulate LGE dynamics in normal, scar, and cardiac amyloid myocardium; the results were compared with previously published values. RESULTS The three-compartment model is able to capture the qualitative features of LGE, in patients with cardiac amyloid. In particular, the characteristic "dark blood" appearance of PSIR images of LGE in cardiac amyloid is seen to likely primarily reflect expansion of the extravascular extracellular space (EES) by amyloid in the "reference" myocardium; the cardiac amyloid contrast enhancement dynamics also reflect expansion of the body EES. CONCLUSION The distinctive appearance of LGE in cardiac amyloid is likely due to a combination of diffuse expansion by amyloid of the EES of the reference myocardium and of the body EES.
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Affiliation(s)
- Leon Axel
- Department of Radiology, NYU Grossman School of Medicine, 660 First Avenue, Room 411, New York, NY, 1016, USA.
- Department of Internal Medicine, Leon H. Charney Division of Cardiology, NYU Grossman School of Medicine, 660 First Avenue, Room 411, NY, 1016, New York, USA.
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Thavendiranathan P, Shalmon T, Fan CPS, Houbois C, Amir E, Thevakumaran Y, Somerset E, Malowany JM, Urzua-Fresno C, Yip P, McIntosh C, Sussman MS, Brezden-Masley C, Yan AT, Koch CA, Spiller N, Abdel-Qadir H, Power C, Hanneman K, Wintersperger BJ. Comprehensive Cardiovascular Magnetic Resonance Tissue Characterization and Cardiotoxicity in Women With Breast Cancer. JAMA Cardiol 2023; 8:524-534. [PMID: 37043251 PMCID: PMC10099158 DOI: 10.1001/jamacardio.2023.0494] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 02/12/2023] [Indexed: 04/13/2023]
Abstract
Importance There is a growing interest in understanding whether cardiovascular magnetic resonance (CMR) myocardial tissue characterization helps identify risk of cancer therapy-related cardiac dysfunction (CTRCD). Objective To describe changes in CMR tissue biomarkers during breast cancer therapy and their association with CTRCD. Design, Setting, and Participants This was a prospective, multicenter, cohort study of women with ERBB2 (formerly HER2)-positive breast cancer (stages I-III) who were scheduled to receive anthracycline and trastuzumab therapy with/without adjuvant radiotherapy and surgery. From November 7, 2013, to January 16, 2019, participants were recruited from 3 University of Toronto-affiliated hospitals. Data were analyzed from July 2021 to June 2022. Exposures Sequential therapy with anthracyclines, trastuzumab, and radiation. Main Outcomes and Measures CMR, high-sensitivity cardiac troponin I (hs-cTnI), and B-type natriuretic peptide (BNP) measurements were performed before anthracycline treatment, after anthracycline and before trastuzumab treatment, and at 3-month intervals during trastuzumab therapy. CMR included left ventricular (LV) volumes, LV ejection fraction (EF), myocardial strain, early gadolinium enhancement imaging to assess hyperemia (inflammation marker), native/postcontrast T1 mapping (with extracellular volume fraction [ECV]) to assess edema and/or fibrosis, T2 mapping to assess edema, and late gadolinium enhancement (LGE) to assess replacement fibrosis. CTRCD was defined using the Cardiac Review and Evaluation Committee criteria. Fixed-effects models or generalized estimating equations were used in analyses. Results Of 136 women (mean [SD] age, 51.1 [9.2] years) recruited from 2013 to 2019, 37 (27%) developed CTRCD. Compared with baseline, tissue biomarkers of myocardial hyperemia and edema peaked after anthracycline therapy or 3 months after trastuzumab initiation as demonstrated by an increase in mean (SD) relative myocardial enhancement (baseline, 46.3% [16.8%] to peak, 56.2% [18.6%]), native T1 (1012 [26] milliseconds to 1035 [28] milliseconds), T2 (51.4 [2.2] milliseconds to 52.6 [2.2] milliseconds), and ECV (25.2% [2.4%] to 26.8% [2.7%]), with P <.001 for the entire follow-up. The observed values were mostly within the normal range, and the changes were small and recovered during follow-up. No new replacement fibrosis developed. Increase in T1, T2, and/or ECV was associated with increased ventricular volumes and BNP but not hs-cTnI level. None of the CMR tissue biomarkers were associated with changes in LVEF or myocardial strain. Change in ECV was associated with concurrent and subsequent CTRCD, but there was significant overlap between patients with and without CTRCD. Conclusions and Relevance In women with ERBB2-positive breast cancer receiving sequential anthracycline and trastuzumab therapy, CMR tissue biomarkers suggest inflammation and edema peaking early during therapy and were associated with ventricular remodeling and BNP elevation. However, the increases in CMR biomarkers were transient, were not associated with LVEF or myocardial strain, and were not useful in identifying traditional CTRCD risk.
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Affiliation(s)
- Paaladinesh Thavendiranathan
- Department of Medicine, Division of Cardiology, Ted Rogers Program in Cardiotoxicity Prevention, Peter Munk Cardiac Center, Toronto General Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
- Joint Department of Medical Imaging, Toronto General Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Tamar Shalmon
- Department of Medicine, Division of Cardiology, Ted Rogers Program in Cardiotoxicity Prevention, Peter Munk Cardiac Center, Toronto General Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
- Joint Department of Medical Imaging, Toronto General Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Chun-Po Steve Fan
- Ted Rogers Computational Program, Ted Rogers Centre for Heart Research, Peter Munk Cardiac Centre, UHN, Toronto, Ontario, Canada
| | - Christian Houbois
- Joint Department of Medical Imaging, Toronto General Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
- Department of Medical Imaging, University of Toronto, Toronto, Ontario, Canada
| | - Eitan Amir
- Department of Medicine, Division of Medical Oncology and Hematology, Princess Margaret Cancer Center, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Yobiga Thevakumaran
- Department of Medicine, Division of Cardiology, Ted Rogers Program in Cardiotoxicity Prevention, Peter Munk Cardiac Center, Toronto General Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Emily Somerset
- Ted Rogers Computational Program, Ted Rogers Centre for Heart Research, Peter Munk Cardiac Centre, UHN, Toronto, Ontario, Canada
| | - Julia M. Malowany
- Peter Munk Cardiac Center, Toronto General Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Camila Urzua-Fresno
- Department of Medicine, Division of Cardiology, Ted Rogers Program in Cardiotoxicity Prevention, Peter Munk Cardiac Center, Toronto General Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
- Joint Department of Medical Imaging, Toronto General Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Paul Yip
- Division of Laboratory Medicine and Pathobiology, University Health Network, University of Toronto, Ontario, Canada
| | - Chris McIntosh
- Joint Department of Medical Imaging, Toronto General Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
- Department of Medical Imaging, University of Toronto, Toronto, Ontario, Canada
- Peter Munk Cardiac Centre, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada
- Techna Institute, University Health Network, Toronto, Ontario, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
- Vector Institute, University of Toronto, Toronto, Ontario, Canada
| | - Marshall S. Sussman
- Joint Department of Medical Imaging, Toronto General Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
- Department of Medical Imaging, University of Toronto, Toronto, Ontario, Canada
| | - Christine Brezden-Masley
- Department of Medicine, Division of Medical Oncology, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Andrew T. Yan
- Keenan Research Centre, Li Ka Shing Knowledge Institute, Division of Cardiology, St. Michael’s Hospital, University of Toronto, Toronto, Ontario, Canada
| | - C. Anne Koch
- Radiation Medicine Program, Princess Margaret Cancer Center, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Neil Spiller
- Joint Department of Medical Imaging, Toronto General Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Husam Abdel-Qadir
- Department of Medicine, Division of Cardiology, Ted Rogers Program in Cardiotoxicity Prevention, Peter Munk Cardiac Center, Toronto General Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
- Women’s College Hospital, Toronto, Ontario, Canada
| | - Coleen Power
- Department of Medicine, Division of Cardiology, Ted Rogers Program in Cardiotoxicity Prevention, Peter Munk Cardiac Center, Toronto General Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Kate Hanneman
- Joint Department of Medical Imaging, Toronto General Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
- Department of Medical Imaging, University of Toronto, Toronto, Ontario, Canada
| | - Bernd J. Wintersperger
- Joint Department of Medical Imaging, Toronto General Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
- Department of Medical Imaging, University of Toronto, Toronto, Ontario, Canada
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11
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Meloni A, Gargani L, Bruni C, Cavallaro C, Gobbo M, D'Agostino A, D'Angelo G, Martini N, Grigioni F, Sinagra G, De Caterina R, Quaia E, Mavrogeni S, Cademartiri F, Matucci-Cerinic M, Pepe A. Additional value of T1 and T2 mapping techniques for early detection of myocardial involvement in scleroderma. Int J Cardiol 2023; 376:139-146. [PMID: 36731634 DOI: 10.1016/j.ijcard.2023.01.066] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 01/16/2023] [Accepted: 01/23/2023] [Indexed: 02/01/2023]
Abstract
BACKGROUND We evaluated the prevalence of myocardial involvement by native T1 and T2 mapping, the diagnostic performance of mapping in addition to conventional Lake Louise Criteria (LLC), as well as correlations between mapping findings and clinical or conventional cardiovascular magnetic resonance (CMR) parameters in systemic sclerosis (SSc) patients. METHODS Fifty-five SSc patients (52.31 ± 13.24 years, 81.8% female) and 55 age- and sex-matched healthy subjects underwent clinical, bio-humoral assessment, and CMR. The imaging protocol included: T2-weighted, early post-contrast cine sequences, native T1 and T2 mapping by a segmental approach, and late gadolinium enhancement (LGE) technique. RESULTS Global myocardial T1 and T2 values were significantly higher in SSc patients than in healthy subjects. An increase in native T1 and/or T2 was present in the 62.1% of patients with normal conventional CMR techniques (negative LGE and T2-weighted images). Respectively, 13.5% and 59.6% of patients fulfilled original and updated LLC (overall agreement = 53.9%). Compared with patients with normal native T1, patients with increased T1 (40.0%) featured significantly higher left ventricular end-diastolic volume index and cardiac index, biventricular stroke volume indexes, and global heart T2 values, and more frequently had a history of digital ulcers. Biochemical and functional CMR parameters were comparable between patients with normal and increased T2 (61.8%). CONCLUSION T1 and T2 mapping are sensitive parameters that should be included in the routine clinical assessment of SSc patients for detecting early/subclinical myocardial involvement.
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Affiliation(s)
- Antonella Meloni
- Department of Radiology, Fondazione G. Monasterio CNR-Regione Toscana, Pisa, Italy
| | - Luna Gargani
- Department of Surgical, Medical and Molecular Pathology and Critical Care Medicine, University of Pisa, Pisa, Italy
| | - Cosimo Bruni
- Department of Experimental and Clinical Medicine, Division of Rheumatology, University of Florence, Florence, Italy; Department of Rheumatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Camilla Cavallaro
- Cardiovascular Department, University Campus Bio-Medico, Roma, Italy
| | - Marco Gobbo
- Cardiovascular Department, Azienda Sanitaria Universitaria di Trieste, Department of Medical Surgical and Health Sciences, University of Trieste, Trieste, Italy
| | - Andreina D'Agostino
- Department of Surgical, Medical and Molecular Pathology and Critical Care Medicine, University of Pisa, Pisa, Italy
| | - Gennaro D'Angelo
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Nicola Martini
- Department of Radiology, Fondazione G. Monasterio CNR-Regione Toscana, Pisa, Italy
| | | | - Gianfranco Sinagra
- Cardiovascular Department, Azienda Sanitaria Universitaria di Trieste, Department of Medical Surgical and Health Sciences, University of Trieste, Trieste, Italy
| | - Raffaele De Caterina
- Department of Surgical, Medical and Molecular Pathology and Critical Care Medicine, University of Pisa, Pisa, Italy
| | - Emilio Quaia
- Institute of Radiology, Department of Medicine, University of Padua, Padua, Italy
| | - Sophie Mavrogeni
- Department of Cardiology, Onassis Cardiac Surgery Center, Athens, Greece
| | - Filippo Cademartiri
- Department of Radiology, Fondazione G. Monasterio CNR-Regione Toscana, Pisa, Italy
| | - Marco Matucci-Cerinic
- Department of Experimental and Clinical Medicine, Division of Rheumatology, University of Florence, Florence, Italy; Unit of Immunology, Rheumatology, Allergy and Rare diseases (UnIRAR), IRCCS San Raffaele Hospital, Milan, Italy
| | - Alessia Pepe
- Institute of Radiology, Department of Medicine, University of Padua, Padua, Italy.
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Nickander J, Steffen Johansson R, Lodin K, Wahrby A, Loewenstein D, Bruchfeld J, Runold M, Xue H, Kellman P, Engblom H. Stress native T1 and native T2 mapping compared to myocardial perfusion reserve in long-term follow-up of severe Covid-19. Sci Rep 2023; 13:4159. [PMID: 36914719 PMCID: PMC10010213 DOI: 10.1038/s41598-023-30989-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 03/03/2023] [Indexed: 03/16/2023] Open
Abstract
Severe Covid-19 may cause a cascade of cardiovascular complications beyond viral pneumonia. The severe inflammation may affect the microcirculation which can be assessed by cardiovascular magnetic resonance (CMR) imaging using quantitative perfusion mapping and calculation of myocardial perfusion reserve (MPR). Furthermore, native T1 and T2 mapping have previously been shown to identify changes in myocardial perfusion by the change in native T1 and T2 during adenosine stress. However, the relationship between native T1, native T2, ΔT1 and ΔT2 with myocardial perfusion and MPR during long-term follow-up in severe Covid-19 is currently unknown. Therefore, patients with severe Covid-19 (n = 37, median age 57 years, 24% females) underwent 1.5 T CMR median 292 days following discharge. Quantitative myocardial perfusion (ml/min/g), and native T1 and T2 maps were acquired during adenosine stress, and rest, respectively. Both native T1 (R2 = 0.35, p < 0.001) and native T2 (R2 = 0.28, p < 0.001) correlated with myocardial perfusion. However, there was no correlation with ΔT1 or ΔT2 with MPR, respectively (p > 0.05 for both). Native T1 and native T2 correlate with myocardial perfusion during adenosine stress, reflecting the coronary circulation in patients during long-term follow-up of severe Covid-19. Neither ΔT1 nor ΔT2 can be used to assess MPR in patients with severe Covid-19.
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Affiliation(s)
- Jannike Nickander
- Department of Clinical Physiology, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden.
| | - Rebecka Steffen Johansson
- Department of Clinical Physiology, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Klara Lodin
- Department of Clinical Physiology, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Anton Wahrby
- Department of Clinical Physiology, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Daniel Loewenstein
- Department of Clinical Physiology, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Judith Bruchfeld
- Division of Infectious Diseases, Department of Medicine Solna, Karolinska Institutet, Solna, Sweden.,Department of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - Michael Runold
- Department of Respiratory Medicine and Allergy, Karolinska University Hospital, Stockholm, Sweden
| | - Hui Xue
- National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Peter Kellman
- National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Henrik Engblom
- Department of Clinical Physiology, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
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Marty B, Baudin PY, Araujo ECDA, Fromes Y, Wahbi K, Reyngoudt H. Assessment of Extracellular Volume Fraction in Becker Muscular Dystrophy by Using MR Fingerprinting. Radiology 2023; 307:e221115. [PMID: 36880945 DOI: 10.1148/radiol.221115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Abstract
Background Quantitative MRI is increasingly proposed in clinical trials related to dystrophinopathies, including Becker muscular dystrophy (BMD). Purpose To establish the sensitivity of extracellular volume fraction (ECV) quantification using an MR fingerprinting sequence with water and fat separation as a quantitative imaging biomarker of skeletal muscle tissue alterations in BMD compared with fat fraction (FF) and water relaxation time quantification. Materials and Methods In this prospective study, study participants with BMD and healthy volunteers were included from April 2018 until October 2022 (ClinicalTrials.gov identifier NCT02020954). The MRI examination comprised FF mapping with the three-point Dixon method, water T2 mapping, and water T1 mapping before and after an intravenous injection of a gadolinium-based contrast agent by using MR fingerprinting, from which ECV was calculated. Functional status was measured with use of the Walton and Gardner-Medwin scale. This clinical evaluation tool stratifies disease severity from grade 0 (preclinical; elevated creatine phosphokinase; all activities normal) to grade 9 (unable to eat, drink, or sit without assistance). Mann-Whitney U tests, Kruskal-Wallis tests, and Spearman rank correlation tests were performed. Results Twenty-eight participants with BMD (median age, 42 years [IQR, 34-52 years]; 28 male) and 19 healthy volunteers (median age, 39 years [IQR, 33-55 years]; 19 male) were evaluated. ECV was higher in participants with dystrophy than in controls (median, 0.21 [IQR, 0.16-0.28] vs 0.07 [IQR, 0.07-0.08]; P < .001). In muscles of participants with BMD with normal FF, ECV was also higher than in muscles of healthy controls (median, 0.11 [IQR, 0.10-0.15] vs 0.07 [IQR, 0.07-0.08]; P = .02). ECV was correlated with FF (ρ = 0.56, P = .003), Walton and Gardner-Medwin scale score (ρ = 0.52, P = .006), and serum cardiac troponin T level (ρ = 0.60, P < .001). Conclusion Quantitative MR relaxometry with water and fat separation indicates a significant increase of skeletal muscle extracellular volume fraction in study participants with Becker muscular dystrophy. Clinical trial registration no. NCT02020954 Published under a CC BY 4.0 license. Supplemental material is available for this article.
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Affiliation(s)
- Benjamin Marty
- From the Institute of Myology, Neuromuscular Investigation Center, NMR Laboratory, Bâtiment Babinski, Groupe Hospitalier Pitié-Salpêtrière, 47-83 boulevard Vincent Auriol, 75651 Paris Cedex 13, France (B.M., P.Y.B., E.C.d.A.A., Y.F., H.R.); and Institute of Myology, Reference Center for Muscle Diseases Paris-Est, Paris, France (K.W.)
| | - Pierre-Yves Baudin
- From the Institute of Myology, Neuromuscular Investigation Center, NMR Laboratory, Bâtiment Babinski, Groupe Hospitalier Pitié-Salpêtrière, 47-83 boulevard Vincent Auriol, 75651 Paris Cedex 13, France (B.M., P.Y.B., E.C.d.A.A., Y.F., H.R.); and Institute of Myology, Reference Center for Muscle Diseases Paris-Est, Paris, France (K.W.)
| | - Ericky Caldas de Almeida Araujo
- From the Institute of Myology, Neuromuscular Investigation Center, NMR Laboratory, Bâtiment Babinski, Groupe Hospitalier Pitié-Salpêtrière, 47-83 boulevard Vincent Auriol, 75651 Paris Cedex 13, France (B.M., P.Y.B., E.C.d.A.A., Y.F., H.R.); and Institute of Myology, Reference Center for Muscle Diseases Paris-Est, Paris, France (K.W.)
| | - Yves Fromes
- From the Institute of Myology, Neuromuscular Investigation Center, NMR Laboratory, Bâtiment Babinski, Groupe Hospitalier Pitié-Salpêtrière, 47-83 boulevard Vincent Auriol, 75651 Paris Cedex 13, France (B.M., P.Y.B., E.C.d.A.A., Y.F., H.R.); and Institute of Myology, Reference Center for Muscle Diseases Paris-Est, Paris, France (K.W.)
| | - Karim Wahbi
- From the Institute of Myology, Neuromuscular Investigation Center, NMR Laboratory, Bâtiment Babinski, Groupe Hospitalier Pitié-Salpêtrière, 47-83 boulevard Vincent Auriol, 75651 Paris Cedex 13, France (B.M., P.Y.B., E.C.d.A.A., Y.F., H.R.); and Institute of Myology, Reference Center for Muscle Diseases Paris-Est, Paris, France (K.W.)
| | - Harmen Reyngoudt
- From the Institute of Myology, Neuromuscular Investigation Center, NMR Laboratory, Bâtiment Babinski, Groupe Hospitalier Pitié-Salpêtrière, 47-83 boulevard Vincent Auriol, 75651 Paris Cedex 13, France (B.M., P.Y.B., E.C.d.A.A., Y.F., H.R.); and Institute of Myology, Reference Center for Muscle Diseases Paris-Est, Paris, France (K.W.)
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Olausson E, Wertz J, Fridman Y, Bering P, Maanja M, Niklasson L, Wong TC, Fukui M, Cavalcante JL, Cater G, Kellman P, Bukhari S, Miller CA, Saba S, Ugander M, Schelbert EB. Diffuse myocardial fibrosis associates with incident ventricular arrhythmia in implantable cardioverter defibrillator recipients. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.02.15.23285925. [PMID: 36824921 PMCID: PMC9949189 DOI: 10.1101/2023.02.15.23285925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Background Diffuse myocardial fibrosis (DMF) quantified by extracellular volume (ECV) may represent a vulnerable phenotype and associate with life threatening ventricular arrhythmias more than focal myocardial fibrosis. This principle remains important because 1) risk stratification for implantable cardioverter defibrillators (ICD) remains challenging, and 2) DMF may respond to current or emerging medical therapies (reversible substrate). Objectives To evaluate the association between quantified by ECV in myocardium without focal fibrosis by late gadolinium enhancement (LGE) with time from ICD implantation to 1) appropriate shock, or 2) shock or anti-tachycardia pacing. Methods Among patients referred for cardiovascular magnetic resonance (CMR) without congenital disease, hypertrophic cardiomyopathy, or amyloidosis who received ICDs (n=215), we used Cox regression to associate ECV with incident ICD therapy. Results After a median of 2.9 (IQR 1.5-4.2) years, 25 surviving patients experienced ICD shock and 44 experienced shock or anti-tachycardia pacing. ECV ranged from 20.2% to 39.4%. No patient with ECV<25% experienced an ICD shock. ECV associated with both endpoints, e.g., hazard ratio 2.17 (95%CI 1.17-4.00) for every 5% increase in ECV, p=0.014 in a stepwise model for ICD shock adjusting for ICD indication, age, smoking, atrial fibrillation, and myocardial infarction, whereas focal fibrosis by LGE and global longitudinal strain (GLS) did not. Conclusions DMF measured by ECV associates with ventricular arrhythmias requiring ICD therapy in a dose-response fashion, even adjusting for potential confounding variables, focal fibrosis by LGE, and GLS. ECV-based risk stratification and DMF representing a therapeutic target to prevent ventricular arrhythmia warrant further investigation.
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Affiliation(s)
- Eric Olausson
- Department of Clinical Physiology, Karolinska University Hospital, and Karolinska Institutet, Stockholm, Sweden
| | | | - Yaron Fridman
- Asheville Cardiology Associates, Mission Hospital, Asheville, NC, USA
| | | | - Maren Maanja
- Department of Clinical Physiology, Karolinska University Hospital, and Karolinska Institutet, Stockholm, Sweden
| | - Louise Niklasson
- Department of Clinical Physiology, Karolinska University Hospital, and Karolinska Institutet, Stockholm, Sweden
| | - Timothy C Wong
- Heart and Vascular Institute, UPMC, Pittsburgh, PA, USA
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- UPMC Cardiovascular Magnetic Resonance Center, Pittsburgh, PA, USA
| | - Miho Fukui
- Minneapolis Heart Institute, Abbott Northwestern Hospital, Minneapolis, Minnesota
| | - João L. Cavalcante
- Minneapolis Heart Institute, Abbott Northwestern Hospital, Minneapolis, Minnesota
| | - George Cater
- Heart and Vascular Institute, UPMC, Pittsburgh, PA, USA
- UPMC Cardiovascular Magnetic Resonance Center, Pittsburgh, PA, USA
| | - Peter Kellman
- National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Syed Bukhari
- Department of Medicine, Temple University, Philadelphia, PA, USA
| | - Christopher A. Miller
- Division of Cardiovascular Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Oxford Road, Manchester, M13 9PL, UK
- Manchester University NHS Foundation Trust, Southmoor Road, Wythenshawe, Manchester, M23 9LT, UK
- Wellcome Centre for Cell-Matrix Research, Division of Cell-Matrix Biology & Regenerative Medicine, School of Biology, Faculty of Biology, Medicine & Health, Manchester Academic Health Science Centre, University of Manchester, Oxford Road, Manchester, M13 9PT, UK
- Kolling Institute, Royal North Shore Hospital, and Sydney Medical School, Northern Clinical School, University of Sydney, Sydney, Australia
| | - Samir Saba
- Heart and Vascular Institute, UPMC, Pittsburgh, PA, USA
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Martin Ugander
- Department of Clinical Physiology, Karolinska University Hospital, and Karolinska Institutet, Stockholm, Sweden
- Wellcome Centre for Cell-Matrix Research, Division of Cell-Matrix Biology & Regenerative Medicine, School of Biology, Faculty of Biology, Medicine & Health, Manchester Academic Health Science Centre, University of Manchester, Oxford Road, Manchester, M13 9PT, UK
- Kolling Institute, Royal North Shore Hospital, and Sydney Medical School, Northern Clinical School, University of Sydney, Sydney, Australia
| | - Erik B. Schelbert
- Heart and Vascular Institute, UPMC, Pittsburgh, PA, USA
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- UPMC Cardiovascular Magnetic Resonance Center, Pittsburgh, PA, USA
- Minneapolis Heart Institute, Abbott Northwestern Hospital, Minneapolis, Minnesota
- Minneapolis Heart Institute East, United Hospital, Saint Paul, Minnesota
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15
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T1 Mapping for Identifying the Substrate in Patients With Apparently Idiopathic Premature Ventricular Complexes. JACC Clin Electrophysiol 2023. [DOI: 10.1016/j.jacep.2022.12.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
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16
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Meloni A, Pistoia L, Positano V, De Luca A, Martini N, Spasiano A, Fotzi I, Bitti PP, Visceglie D, Alberini G, Sinagra G, Pepe A, Cademartiri F. Increased myocardial extracellular volume is associated with myocardial iron overload and heart failure in thalassemia major. Eur Radiol 2023; 33:1266-1276. [PMID: 36066735 DOI: 10.1007/s00330-022-09120-8] [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: 06/01/2022] [Revised: 07/27/2022] [Accepted: 08/18/2022] [Indexed: 02/03/2023]
Abstract
OBJECTIVES Myocardial extracellular volume (ECV) by cardiovascular magnetic resonance (CMR) is a surrogate marker of diffuse fibrosis. We evaluated the association between ECV and demographics, CMR findings, and cardiac involvement in patients with thalassemia major (TM). METHODS A total of 108 β-TM patients (62 females, 40.16 ± 8.83 years), consecutively enrolled in the Extension-Myocardial Iron Overload in Thalassemia Network, and 16 healthy subjects (6 females, 37.12 ± 16.13 years) underwent CMR. The protocol included assessment of T2*, native T1, and T2 values in all 16 myocardial segments for myocardial iron overload (MIO) quantification, cine images for left ventricular (LV) function quantification, post-contrast T1 mapping for ECV calculation, and late gadolinium enhancement (LGE) technique for replacement myocardial fibrosis detection. RESULTS Global ECV values were significantly higher in females than in males. Global ECV values were significantly higher in patients with significant MIO (global heart T2* < 20 ms) than in patients without significant MIO, and both groups exhibited higher global ECV values than healthy subjects. No association was detected between native T1 and ECV values, while patients with reduced global heart T2 values showed significantly higher global ECV values than patients with normal and increased global heart T2. Global ECV values were not correlated with LV function/size and were comparable between patients with and without LGE. Compared to patients without heart failure, patients with a history of heart failure (N = 10) showed significantly higher global heart ECV values. CONCLUSION In TM, increased myocardial ECV, potentially reflecting diffuse interstitial fibrosis, is associated with MIO and heart failure. KEY POINTS • CMR-derived myocardial extracellular volume is increased in thalassemia major patients, irrespective of the presence of late gadolinium enhancement. • In thalassemia major, myocardial iron overload contributes to the increase in myocardial ECV, which potentially reflects diffuse interstitial fibrosis and is significantly associated with a history of heart failure.
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Affiliation(s)
- Antonella Meloni
- Department of Radiology, Fondazione G. Monasterio CNR-Regione Toscana, Via Moruzzi, 1 -, 56124, Pisa, Italy.,U.O.C. Bioingegneria, Fondazione G. Monasterio CNR-Regione Toscana, Pisa, Italy
| | - Laura Pistoia
- Department of Radiology, Fondazione G. Monasterio CNR-Regione Toscana, Via Moruzzi, 1 -, 56124, Pisa, Italy
| | - Vincenzo Positano
- Department of Radiology, Fondazione G. Monasterio CNR-Regione Toscana, Via Moruzzi, 1 -, 56124, Pisa, Italy.,U.O.C. Bioingegneria, Fondazione G. Monasterio CNR-Regione Toscana, Pisa, Italy
| | - Antonio De Luca
- Cardiovascular Department, University of Trieste, Trieste, Italy
| | - Nicola Martini
- Department of Radiology, Fondazione G. Monasterio CNR-Regione Toscana, Via Moruzzi, 1 -, 56124, Pisa, Italy.,U.O.C. Bioingegneria, Fondazione G. Monasterio CNR-Regione Toscana, Pisa, Italy
| | - Anna Spasiano
- Unità Operativa Semplice Dipartimentale Malattie Rare del Globulo Rosso, Azienda Ospedaliera di Rilievo Nazionale "A. Cardarelli", Napoli, Italy
| | - Ilaria Fotzi
- Centro Talassemie ed Emoglobinopatie, Ospedale "Meyer", Firenze, Italy
| | - Pier Paolo Bitti
- Servizio Immunoematologia e Medicina Trasfusionale - Dipartimento dei Servizi, Presidio Ospedaliero "San Francesco" ASL Nuoro, Nuoro, Italy
| | - Domenico Visceglie
- Servizio di Immunoematologia e Medicina Trasfusionale, A.S.L. di Bari, Ospedale "Di Venere", Bari, Italy
| | - Gianna Alberini
- U.O.C. INFOTEL Translational BioInformatics and eHealth, Fondazione G. Monasterio CNR-Regione Toscana, Pisa, Italy
| | | | - Alessia Pepe
- Institute of Radiology, Department of Medicine, University of Padua, Padua, Italy
| | - Filippo Cademartiri
- Department of Radiology, Fondazione G. Monasterio CNR-Regione Toscana, Via Moruzzi, 1 -, 56124, Pisa, Italy.
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17
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Donà C, Nitsche C, Anegg O, Poschner T, Koschutnik M, Duca F, Aschauer S, Dannenberg V, Schneider M, Schoenbauer R, Beitzke D, Loewe C, Hengstenberg C, Mascherbauer J, Kammerlander A. Bioimpedance Spectroscopy Reveals Important Association of Fluid Status and T 1 -Mapping by Cardiovascular Magnetic Resonance. J Magn Reson Imaging 2022; 56:1671-1679. [PMID: 35352420 PMCID: PMC9790685 DOI: 10.1002/jmri.28159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 02/28/2022] [Accepted: 03/01/2022] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Extracellular matrix expansion is a key pathophysiologic feature in heart failure and can be quantified noninvasively by cardiac magnetic resonance T1 -mapping. Free water within the interstitial space of the myocardium, however, may also alter T1 -mapping results. PURPOSE To investigate the association between systemic fluid status and T1 -mapping by cardiac magnetic resonance. STUDY TYPE Prospective, observational single-center study. POPULATION Two-hundred eighty-five consecutive patients (44.4% female, 70.0 ± 14.9 years old) scheduled for cardiac MR due to various cardiac diseases. SEQUENCE AND FIELD STRENGTH 1.5-T scanner (Avanto Fit, Siemens Healthineers, Erlangen, Germany). For T1 -mapping, electrocardiographically triggered modified-Look-Locker inversion (MOLLI) recovery sequence using a 5(3)3 prototype on a short-axis mid-cavity slice and with a four-chamber view was performed. ASSESSMENTS MR parameters including native myocardial T1 -times using MOLLI and extracellular volume (MR-ECV) were assessed, and additionally, we performed bioimpedance analysis (BIA). Furthermore, demographic data and comorbidities were assessed. STATISTICS Wilcoxon's rank-sum test, chi-square tests, and for correlation analysis, Pearson's correlation coefficients were used. Regression analyses were performed to investigate the association between patients' fluid status and T1 -mapping results. A P-value <0.05 was considered statistically significant. RESULTS The mixed cohort presented with a mean overhydration (OH) of +0.2 ± 2.4 liters, as determined by BIA. By MR, native T1 -times were 1038 ± 51 msec and MR-ECV was 31 ± 9%. In the multivariable regression analysis, only OH was significantly associated with MR-ECV (adj. beta: 0.711; 95% CI: 0.28 to 1.14) along with male sex (adj. beta: 2.529; 95% CI: 0.51 to 4.55). In linear as well as multivariable analysis, only OH was significantly associated with native T1 times (adj. beta: 3.750; 95% CI: 1.27 to 6.23). CONCLUSION T1 -times and MR-ECV were significantly associated with the degree of OH on BIA measurement. These effects were independent from age, sex, body mass index, and hematocrit. Patients' volume status may thus be an important factor when T1 -time and MR-ECV values are interpreted. LEVEL OF EVIDENCE 2 TECHNICAL EFFICACY STAGE: 3.
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Affiliation(s)
- Carolina Donà
- Division of CardiologyMedical University of ViennaViennaAustria
| | | | - Oliver Anegg
- Division of CardiologyMedical University of ViennaViennaAustria
| | - Thomas Poschner
- Division of CardiologyMedical University of ViennaViennaAustria
| | | | - Franz Duca
- Division of CardiologyMedical University of ViennaViennaAustria
| | - Stefan Aschauer
- Division of CardiologyMedical University of ViennaViennaAustria
| | | | | | | | - Dietrich Beitzke
- Department of Cardiovascular and Interventional RadiologyMedical University of ViennaViennaAustria
| | - Christian Loewe
- Department of Cardiovascular and Interventional RadiologyMedical University of ViennaViennaAustria
| | | | - Julia Mascherbauer
- Division of CardiologyMedical University of ViennaViennaAustria,Karl Landsteiner University of Health Sciences, Department of Internal Medicine 3University Hospital St. PöltenKremsAustria
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18
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Fetal growth restriction followed by very preterm birth is associated with smaller kidneys but preserved kidney function in adolescence. Pediatr Nephrol 2022; 38:1855-1866. [PMID: 36409369 PMCID: PMC10154253 DOI: 10.1007/s00467-022-05785-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 09/02/2022] [Accepted: 10/06/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND Preterm birth and fetal growth restriction (FGR) are associated with structural and functional kidney changes, increasing long-term risk for chronic kidney disease and hypertension. However, recent studies in preterm children are conflicting, indicating structural changes but normal kidney function. This study therefore assessed kidney structure and function in a cohort of adolescents born very preterm with and without verified FGR. METHODS Adolescents born very preterm with FGR and two groups with appropriate birthweight (AGA) were included; one matched for gestational week at birth and one born at term. Cortical and medullary kidney volumes and T1 and T2* mapping values were assessed by magnetic resonance imaging. Biochemical markers of kidney function and renin-angiotensin-aldosterone system (RAAS) activation were analyzed. RESULTS Sixty-four adolescents were included (13-16 years; 48% girls). Very preterm birth with FGR showed smaller total (66 vs. 75 ml/m2; p = 0.01) and medullary volume (19 vs. 24 ml/m2; p < 0.0001) compared to term AGA. Corticomedullary volume ratio decreased from preterm FGR (2.4) to preterm AGA (2.2) to term AGA (1.9; p = 0.004). There were no differences in T1 or T2* values (all p ≥ 0.34) or in biochemical markers (all p ≥ 0.12) between groups. CONCLUSIONS FGR with abnormal fetal blood flow followed by very preterm birth is associated with smaller total kidney and medullary kidney volumes, but not with markers of kidney dysfunction or RAAS activation in adolescence. Decreased total kidney and medullary volumes may still precede a long-term decrease in kidney function, and potentially be used as a prognostic marker. A higher resolution version of the Graphical abstract is available as Supplementary information.
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19
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Maanja M, Schlegel TT, Fröjdh F, Niklasson L, Wieslander B, Bacharova L, Schelbert EB, Ugander M. An electrocardiography score predicts heart failure hospitalization or death beyond that of cardiovascular magnetic resonance imaging. Sci Rep 2022; 12:18364. [PMID: 36319723 PMCID: PMC9626618 DOI: 10.1038/s41598-022-22501-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 10/17/2022] [Indexed: 11/08/2022] Open
Abstract
The electrocardiogram (ECG) and cardiovascular magnetic resonance imaging (CMR) provide powerful prognostic information. The aim was to determine their relative prognostic value. Patients (n = 783) undergoing CMR and 12-lead ECG with a QRS duration < 120 ms were included. Prognosis scores for one-year event-free survival from hospitalization for heart failure or death were derived using continuous ECG or CMR measures, and multivariable logistic regression, and compared. Patients (median [interquartile range] age 55 [43-64] years, 44% female) had 155 events during 5.7 [4.4-6.6] years. The ECG prognosis score included (1) frontal plane QRS-T angle, and (2) heart rate corrected QT duration (QTc) (log-rank 55). The CMR prognosis score included (1) global longitudinal strain, and (2) extracellular volume fraction (log-rank 85). The combination of positive scores for both ECG and CMR yielded the highest prognostic value (log-rank 105). Multivariable analysis showed an association with outcomes for both the ECG prognosis score (log-rank 8.4, hazard ratio [95% confidence interval] 1.29 [1.09-1.54]) and the CMR prognosis score (log-rank 47, hazard ratio 1.90 [1.58-2.28]). An ECG prognosis score predicted outcomes independently of CMR. Combining the results of ECG and CMR using both prognosis scores improved the overall prognostic performance.
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Affiliation(s)
- Maren Maanja
- grid.24381.3c0000 0000 9241 5705Department of Clinical Physiology, Karolinska University Hospital, and Karolinska Institutet, Stockholm, Sweden
| | - Todd T. Schlegel
- grid.24381.3c0000 0000 9241 5705Department of Clinical Physiology, Karolinska University Hospital, and Karolinska Institutet, Stockholm, Sweden ,Nicollier-Schlegel SARL, Trélex, Switzerland
| | - Fredrika Fröjdh
- grid.24381.3c0000 0000 9241 5705Department of Clinical Physiology, Karolinska University Hospital, and Karolinska Institutet, Stockholm, Sweden
| | - Louise Niklasson
- grid.24381.3c0000 0000 9241 5705Department of Clinical Physiology, Karolinska University Hospital, and Karolinska Institutet, Stockholm, Sweden
| | - Björn Wieslander
- grid.24381.3c0000 0000 9241 5705Department of Clinical Physiology, Karolinska University Hospital, and Karolinska Institutet, Stockholm, Sweden
| | - Ljuba Bacharova
- grid.419374.c0000 0004 0388 1966International Laser Center CVTI, Bratislava, Slovak Republic ,grid.7634.60000000109409708Institute of Pathophysiology, Medical School, Comenius University, Bratislava, Slovak Republic
| | - Erik B. Schelbert
- grid.412689.00000 0001 0650 7433Department of Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA USA
| | - Martin Ugander
- grid.24381.3c0000 0000 9241 5705Department of Clinical Physiology, Karolinska University Hospital, and Karolinska Institutet, Stockholm, Sweden ,grid.1013.30000 0004 1936 834XKolling Institute, Royal North Shore Hospital, and Charles Perkins Centre, Faculty of Medicine and Health, University of Sydney, Sydney, Australia
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20
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Jablonowski R, Bennet L, Engblom H, Aletras AH, Xue H, Kellman P, Carlsson M, Arheden H. Quantitative myocardial perfusion during stress using CMR is impaired in healthy Middle Eastern immigrants without CV risk factors. Sci Rep 2022; 12:18237. [PMID: 36309585 PMCID: PMC9617937 DOI: 10.1038/s41598-022-23131-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 10/25/2022] [Indexed: 12/31/2022] Open
Abstract
Middle Eastern immigrants constitute a growing proportion of the European population and compared to native Swedes are more insulin resistant, which can contribute to atherosclerosis. Quantitative first pass perfusion (qFPP) using cardiovascular magnetic resonance (CMR) can detect early signs of cardiovascular disease (CVD). The aim was to study if myocardial perfusion differs between healthy male Middle Eastern immigrants and native male Swedes. Eighteen Iraqi- and twelve Swedish born controls, all males, never smokers with no CVD risk factors were included. Global myocardial perfusion at rest and stress was assessed using qFPP and by phase-contrast CMR imaging of coronary sinus flow. Quantitative first pass perfusion analysis (mean ± SD) demonstrated no difference at rest between Iraqi and Swedish males (0.8 ± 0.2 vs 1.0 ± 0.4 ml/min/g, P = 0.38) but lower perfusion during adenosine in Iraqi males (2.9 ± 0.7 vs 3.5 ± 0.7 ml/min/g, P = 0.02). Myocardial perfusion assessed by coronary sinus flow demonstrated similar results with no difference in resting perfusion between groups (0.7 ± 0.2 vs 0.8 ± 0.2 ml/min/g, P = 0.21) but a lower perfusion during adenosine in the Iraqi group (3.0 ± 0.2 vs 3.7 ± 0.6 ml/min/g, P = 0.01. Myocardial perfusion during adenosine stress was lower in healthy Iraqi immigrants compared to Swedish controls suggesting impaired microvascular function and risk of underestimating CVD risk in healthy individuals of Middle Eastern origin.
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Affiliation(s)
- Robert Jablonowski
- grid.411843.b0000 0004 0623 9987Clinical Physiology, Department of Clinical Sciences Lund, Lund University Hospital, Lund University, Skane University Hospital, 221 85 Lund, Sweden
| | - Louise Bennet
- grid.4514.40000 0001 0930 2361Department of Clinical Sciences, Lund University, Malmö, Sweden
| | - Henrik Engblom
- grid.411843.b0000 0004 0623 9987Clinical Physiology, Department of Clinical Sciences Lund, Lund University Hospital, Lund University, Skane University Hospital, 221 85 Lund, Sweden
| | - Anthony H. Aletras
- grid.411843.b0000 0004 0623 9987Clinical Physiology, Department of Clinical Sciences Lund, Lund University Hospital, Lund University, Skane University Hospital, 221 85 Lund, Sweden ,grid.4793.90000000109457005Laboratory of Computing, Medical Informatics and Biomedical-Imaging Technologies, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Hui Xue
- grid.279885.90000 0001 2293 4638National Heart-Lung and Blood Institute, Bethesda, MD USA
| | - Peter Kellman
- grid.279885.90000 0001 2293 4638National Heart-Lung and Blood Institute, Bethesda, MD USA
| | - Marcus Carlsson
- grid.411843.b0000 0004 0623 9987Clinical Physiology, Department of Clinical Sciences Lund, Lund University Hospital, Lund University, Skane University Hospital, 221 85 Lund, Sweden ,grid.279885.90000 0001 2293 4638National Heart-Lung and Blood Institute, Bethesda, MD USA
| | - Håkan Arheden
- grid.411843.b0000 0004 0623 9987Clinical Physiology, Department of Clinical Sciences Lund, Lund University Hospital, Lund University, Skane University Hospital, 221 85 Lund, Sweden
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21
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Iyer NR, Le TT, Kui MSL, Tang HC, Chin CT, Phua SK, Bryant JA, Pua CJ, Ang B, Toh DF, Aw TC, Lee CH, Cook SA, Ugander M, Chin CWL. Markers of Focal and Diffuse Nonischemic Myocardial Fibrosis Are Associated With Adverse Cardiac Remodeling and Prognosis in Patients With Hypertension: The REMODEL Study. Hypertension 2022; 79:1804-1813. [PMID: 35603595 PMCID: PMC9278715 DOI: 10.1161/hypertensionaha.122.19225] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND The prognostic significance of focal and diffuse myocardial fibrosis in patients with cardiovascular risk factors is unclear. METHODS REMODEL (Response of the Myocardium to Hypertrophic Conditions in the Adult Population) is an observational cohort of asymptomatic patients with essential hypertension. All participants underwent cardiovascular magnetic resonance to assess for myocardial fibrosis: nonischemic late gadolinium enhancement (LGE), native myocardial T1, postcontrast myocardial T1, extracellular volume fraction including/excluding LGE regions, interstitial volume (extracellular volume×myocardial volume), and interstitial/myocyte ratio. Primary outcome was a composite of first occurrence acute coronary syndrome, heart failure hospitalization, strokes, and cardiovascular mortality. Patients were recruited from February 2016 and followed until June 2021. RESULTS Of the 786 patients with hypertension (58±11 years; 39% women; systolic blood pressure, 130±14 mm Hg), 145 (18%) had nonischemic LGE. Patients with nonischemic LGE were more likely to be men, have diabetes, be current smokers, and have higher blood pressure (P<0.05 for all). Compared with those without LGE, patients with nonischemic LGE had greater left ventricular mass (66±22 versus 49±9 g/m2; P<0.001), worse multidirectional strain (P<0.001 for all measures), and elevated circulating markers of myocardial wall stress and myocardial injury, adjusted for potential confounders. Twenty-four patients had primary outcome over 39 (30-50) months of follow-up. Of all the cardiovascular magnetic resonance markers of myocardial fibrosis assessed, only nonischemic LGE (hazard ratio, 6.69 [95% CI, 2.54-17.60]; P<0.001) and indexed interstitial volume (hazard ratio, 1.11 [95% CI, 1.04-1.19]; P=0.002) demonstrated independent association with primary outcome. CONCLUSIONS In patients with hypertension, myocardial fibrosis on cardiovascular magnetic resonance is associated with adverse cardiac remodeling and outcomes.
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Affiliation(s)
- Nithin R Iyer
- Department of Cardiology, National Heart Centre Singapore (N.R.I., T.-T.L., M.S.L.K., H.-C.T., C.-T.C., J.A.B., S.A.C., C.W.L.C.)
| | - Thu-Thao Le
- Department of Cardiology, National Heart Centre Singapore (N.R.I., T.-T.L., M.S.L.K., H.-C.T., C.-T.C., J.A.B., S.A.C., C.W.L.C.).,National Heart Research Institute Singapore (T.-T.L., J.A.B., C.-J.P., B.A., D.-F.T., S.A.C., C.W.L.C.).,Cardiovascular ACP, Duke-NUS Medical School, Singapore (T.-T.L., C.W.L.C.)
| | - Michelle S L Kui
- Department of Cardiology, National Heart Centre Singapore (N.R.I., T.-T.L., M.S.L.K., H.-C.T., C.-T.C., J.A.B., S.A.C., C.W.L.C.)
| | - Hak-Chiaw Tang
- Department of Cardiology, National Heart Centre Singapore (N.R.I., T.-T.L., M.S.L.K., H.-C.T., C.-T.C., J.A.B., S.A.C., C.W.L.C.)
| | - Chee-Tang Chin
- Department of Cardiology, National Heart Centre Singapore (N.R.I., T.-T.L., M.S.L.K., H.-C.T., C.-T.C., J.A.B., S.A.C., C.W.L.C.)
| | - Soon-Kieng Phua
- Department of Laboratory Medicine, Changi General Hospital, Singapore (S.-K.P., T.-C.A.)
| | - Jennifer A Bryant
- Department of Cardiology, National Heart Centre Singapore (N.R.I., T.-T.L., M.S.L.K., H.-C.T., C.-T.C., J.A.B., S.A.C., C.W.L.C.).,National Heart Research Institute Singapore (T.-T.L., J.A.B., C.-J.P., B.A., D.-F.T., S.A.C., C.W.L.C.)
| | - Chee-Jian Pua
- National Heart Research Institute Singapore (T.-T.L., J.A.B., C.-J.P., B.A., D.-F.T., S.A.C., C.W.L.C.)
| | - Briana Ang
- National Heart Research Institute Singapore (T.-T.L., J.A.B., C.-J.P., B.A., D.-F.T., S.A.C., C.W.L.C.)
| | - Desiree-Faye Toh
- National Heart Research Institute Singapore (T.-T.L., J.A.B., C.-J.P., B.A., D.-F.T., S.A.C., C.W.L.C.)
| | - Tar-Choon Aw
- Department of Laboratory Medicine, Changi General Hospital, Singapore (S.-K.P., T.-C.A.)
| | - Chi-Hang Lee
- Department of Cardiology, National University Heart Centre Singapore (C.-H.L., S.A.C.)
| | - Stuart A Cook
- Department of Cardiology, National Heart Centre Singapore (N.R.I., T.-T.L., M.S.L.K., H.-C.T., C.-T.C., J.A.B., S.A.C., C.W.L.C.).,National Heart Research Institute Singapore (T.-T.L., J.A.B., C.-J.P., B.A., D.-F.T., S.A.C., C.W.L.C.).,Department of Cardiology, National University Heart Centre Singapore (C.-H.L., S.A.C.)
| | - Martin Ugander
- Faculty of Medicine and Health, The University of Sydney, Australia (M.U.).,Department of Clinical Physiology, Karolinska University Hospital, and Karolinska Institutet, Stockholm, Sweden (M.U.)
| | - Calvin W L Chin
- National Heart Research Institute Singapore (T.-T.L., J.A.B., C.-J.P., B.A., D.-F.T., S.A.C., C.W.L.C.).,Cardiovascular ACP, Duke-NUS Medical School, Singapore (T.-T.L., C.W.L.C.)
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22
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Kwan AC, Wei J, Lee BP, Luong E, Salto G, Nguyen TT, Botting PG, Liu Y, Ouyang D, Ebinger JE, Li D, Noureddin M, Thomson L, Berman DS, Merz CNB, Cheng S. Subclinical hepatic fibrosis is associated with coronary microvascular dysfunction by myocardial perfusion reserve index: a retrospective cohort study. Int J Cardiovasc Imaging 2022; 38:1579-1586. [PMID: 35107770 PMCID: PMC9343468 DOI: 10.1007/s10554-022-02546-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 01/27/2022] [Indexed: 11/05/2022]
Abstract
The heart-liver axis is of growing importance. Previous studies have identified independent association of liver dysfunction and fibrosis with adverse cardiac outcomes, but mechanistic pathways remain uncertain. We sought to understand the relations between the degree of hepatic fibrosis identified by the Fibrosis-4 (Fib-4) risk score and comprehensive cardiac MRI (CMR) measures of subclinical cardiac disease. We conducted a retrospective single-center cohort study of patients between 2011 and 2021. We identified consecutive patients who underwent a comprehensive CMR imaging protocol including contrast enhanced with stress/rest perfusion, and lacked pre-existing cardiovascular disease or perfusion abnormalities on CMR. We examined the association of hepatic fibrosis, using the Fib-4 score, with subclinical cardiac disease on CMR while adjusting for cardiometabolic traits. Given known associations of hepatic disease and coronary microvascular dysfunction, we prioritized analyses with the myocardial perfusion reserve index (MPRI), a marker of coronary microvascular function. Of the 66 patients in our study cohort, 54 were female (81%) and the mean age was 53.7 ± 15.3 years. We found that higher Fib-4 was associated with reduction in the MPRI (β [SE] - 1.12 [0.46], P = 0.02), after adjusting for cardiometabolic risk factors. Importantly, Fib-4 was not significantly associated with any other CMR phenotypes including measures of cardiac remodeling, inflammation, fibrosis, or dysfunction. We found evidence that hepatic fibrosis associated with coronary microvascular dysfunction, in the absence of overt associations with any other subclinical cardiac disease measures. These findings highlight a potentially important precursor pathway leading to development of subsequent heart-liver disease.
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Affiliation(s)
- Alan C Kwan
- Division of Digestive and Liver Diseases, and Department of Imaging, Barbra Streisand Women's Heart Center, Biomedical Imaging Research Institute, Smidt Heart Institute Department of Cardiology, Cedars Sinai Medical Center, 127 S San Vicente Blvd #A3600, Los Angeles, CA, 90048, USA.
| | - Janet Wei
- Division of Digestive and Liver Diseases, and Department of Imaging, Barbra Streisand Women's Heart Center, Biomedical Imaging Research Institute, Smidt Heart Institute Department of Cardiology, Cedars Sinai Medical Center, 127 S San Vicente Blvd #A3600, Los Angeles, CA, 90048, USA
| | - Brian P Lee
- Department of Medicine, Keck School of Medicine of USC, Los Angeles, USA
| | - Eric Luong
- Division of Digestive and Liver Diseases, and Department of Imaging, Barbra Streisand Women's Heart Center, Biomedical Imaging Research Institute, Smidt Heart Institute Department of Cardiology, Cedars Sinai Medical Center, 127 S San Vicente Blvd #A3600, Los Angeles, CA, 90048, USA
| | - Gerran Salto
- Division of Digestive and Liver Diseases, and Department of Imaging, Barbra Streisand Women's Heart Center, Biomedical Imaging Research Institute, Smidt Heart Institute Department of Cardiology, Cedars Sinai Medical Center, 127 S San Vicente Blvd #A3600, Los Angeles, CA, 90048, USA
| | - Trevor-Trung Nguyen
- Division of Digestive and Liver Diseases, and Department of Imaging, Barbra Streisand Women's Heart Center, Biomedical Imaging Research Institute, Smidt Heart Institute Department of Cardiology, Cedars Sinai Medical Center, 127 S San Vicente Blvd #A3600, Los Angeles, CA, 90048, USA
| | - Patrick G Botting
- Division of Digestive and Liver Diseases, and Department of Imaging, Barbra Streisand Women's Heart Center, Biomedical Imaging Research Institute, Smidt Heart Institute Department of Cardiology, Cedars Sinai Medical Center, 127 S San Vicente Blvd #A3600, Los Angeles, CA, 90048, USA
| | - Yunxian Liu
- Division of Digestive and Liver Diseases, and Department of Imaging, Barbra Streisand Women's Heart Center, Biomedical Imaging Research Institute, Smidt Heart Institute Department of Cardiology, Cedars Sinai Medical Center, 127 S San Vicente Blvd #A3600, Los Angeles, CA, 90048, USA
| | - David Ouyang
- Division of Digestive and Liver Diseases, and Department of Imaging, Barbra Streisand Women's Heart Center, Biomedical Imaging Research Institute, Smidt Heart Institute Department of Cardiology, Cedars Sinai Medical Center, 127 S San Vicente Blvd #A3600, Los Angeles, CA, 90048, USA
| | - Joseph E Ebinger
- Division of Digestive and Liver Diseases, and Department of Imaging, Barbra Streisand Women's Heart Center, Biomedical Imaging Research Institute, Smidt Heart Institute Department of Cardiology, Cedars Sinai Medical Center, 127 S San Vicente Blvd #A3600, Los Angeles, CA, 90048, USA
| | - Debiao Li
- Division of Digestive and Liver Diseases, and Department of Imaging, Barbra Streisand Women's Heart Center, Biomedical Imaging Research Institute, Smidt Heart Institute Department of Cardiology, Cedars Sinai Medical Center, 127 S San Vicente Blvd #A3600, Los Angeles, CA, 90048, USA
| | - Mazen Noureddin
- Division of Digestive and Liver Diseases, and Department of Imaging, Barbra Streisand Women's Heart Center, Biomedical Imaging Research Institute, Smidt Heart Institute Department of Cardiology, Cedars Sinai Medical Center, 127 S San Vicente Blvd #A3600, Los Angeles, CA, 90048, USA
| | - Louise Thomson
- Division of Digestive and Liver Diseases, and Department of Imaging, Barbra Streisand Women's Heart Center, Biomedical Imaging Research Institute, Smidt Heart Institute Department of Cardiology, Cedars Sinai Medical Center, 127 S San Vicente Blvd #A3600, Los Angeles, CA, 90048, USA
| | - Daniel S Berman
- Division of Digestive and Liver Diseases, and Department of Imaging, Barbra Streisand Women's Heart Center, Biomedical Imaging Research Institute, Smidt Heart Institute Department of Cardiology, Cedars Sinai Medical Center, 127 S San Vicente Blvd #A3600, Los Angeles, CA, 90048, USA
| | - C Noel Bairey Merz
- Division of Digestive and Liver Diseases, and Department of Imaging, Barbra Streisand Women's Heart Center, Biomedical Imaging Research Institute, Smidt Heart Institute Department of Cardiology, Cedars Sinai Medical Center, 127 S San Vicente Blvd #A3600, Los Angeles, CA, 90048, USA
| | - Susan Cheng
- Division of Digestive and Liver Diseases, and Department of Imaging, Barbra Streisand Women's Heart Center, Biomedical Imaging Research Institute, Smidt Heart Institute Department of Cardiology, Cedars Sinai Medical Center, 127 S San Vicente Blvd #A3600, Los Angeles, CA, 90048, USA
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23
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Anisocytosis is associated with myocardial fibrosis and exercise capacity in heart failure with preserved ejection fraction. Heart Lung 2022; 54:68-73. [PMID: 35358904 DOI: 10.1016/j.hrtlng.2022.03.013] [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: 09/27/2021] [Revised: 03/16/2022] [Accepted: 03/20/2022] [Indexed: 11/21/2022]
Abstract
BACKGROUND Red Blood Cell Distribution Width (RDW), a measure of variability in size of circulating red blood cells and is a marker of inflammation. OBJECTIVES We sought to test the hypothesis that RDW reflects an inflammatory milieu permissive for cardiac fibrosis in those with Heart Failure and preserved ejection fraction (HFpEF). METHODS We analyzed the association between RDW and fibrosis in two separate cohorts. Cohort 1 (n = 200) was a retrospective analysis of blood biomarkers measured in the RELAX trial (Clinicaltrials.gov NCT00763867) and Cohort 2 (n = 160) included a single center cohort of patients with preserved ventricular function referred for cardiac magnetic resonance imaging (cMRI). Linear regression was used to adjust for potential confounders, and a mediation analysis used to explore relationships with exercise intolerance (peak VO2 max). RESULTS Within Cohort 1, anisocytosis (RDW > 14.5) was prevalent (49.5%) and was associated with greater baseline clinical comorbidities, a lower Peak VO2 and more frequent heart failure hospitalizations. The RDW was associated with biomarkers of inflammation and cardiac fibrosis. In Cohort 2, RDW was associated with cMRI myocardial fibrosis (extracellular volume; Spearman's rho=0.38, P<0.001) which was independent of age, sex, LV ejection fraction, and hematocrit (P = 0.026). Individuals with both anisocytosis and myocardial fibrosis identified a subgroup of at high risk for 2-year mortality (HR 16.28 [4.30-61.66], P<0.001). CONCLUSIONS In two independent cohorts of patients with HFpEF, elevated RDW is associated reduced exercise capacity and greater fibrosis as measured by serum biomarkers and cMRI. Additional studies are needed to validate this novel relationship.
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24
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Phantom-based correction for standardization of myocardial native T1 and extracellular volume fraction in healthy subjects at 3-Tesla cardiac magnetic resonance imaging. Eur Radiol 2022; 32:8122-8130. [PMID: 35771246 DOI: 10.1007/s00330-022-08936-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 04/21/2022] [Accepted: 05/30/2022] [Indexed: 12/11/2022]
Abstract
OBJECTIVES To investigate the effect of the phantom-based correction method for standardizing myocardial native T1 and extracellular volume fraction (ECV) in healthy subjects. METHODS Seventy-one healthy asymptomatic adult (≥ 20 years) volunteers of five different age groups (34 men and 37 women, 45.5 ± 15.5 years) were prospectively enrolled in three academic hospitals. Cardiac MRI including Modified Look - Locker Inversion recovery T1 mapping sequence was performed using a 3-Tesla system with a different type of scanner for each hospital. Native T1 and ECV were measured in the short-axis T1 map and analyzed for mean values of the 16 entire segments. The myocardial T1 value of each subject was corrected based on the site-specific equation derived from the T1 Mapping and ECV Standardization phantom. The global native T1 and ECV were compared between institutions before and after phantom-based correction, and the variation in native T1 and ECV among institutions was assessed using a coefficient of variation (CoV). RESULTS The global native T1 value significantly differed between the institutions (1198.7 ± 32.1 ms, institution A; 1217.7 ± 39.9 ms, institution B; 1232.7 ± 31.1 ms, institution C; p = 0.002), but the mean ECV did not (26.6-27.5%, p = 0.355). After phantom-based correction, the global native T1 and ECV were 1289.7 ± 32.4 ms and 25.0 ± 2.7%, respectively, and CoV for native T1 between the three institutions decreased from 3.0 to 2.5%. The corrected native T1 value did not significantly differ between institutions (1284.5 ± 31.5 ms, institution A; 1296.5 ± 39.1 ms, institution B; 1291.3 ± 29.3 ms, institution C; p = 0.440), and neither did the ECV (24.4-25.9%, p = 0.078). CONCLUSIONS The phantom-based correction method can provide standardized reference T1 values in healthy subjects. KEY POINTS • After phantom-based correction, the global native T1 of 16 entire myocardial segments on 3-T cardiac MRI is 1289.4 ± 32.4 ms, and the extracellular volume fraction was 25.0 ± 2.7% for healthy subjects. • After phantom - based correction was applied, the differences in the global native T1 among institutions became insignificant, and the CoV also decreased from 3.0 to 2.5%.
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25
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Dennis M, Howpage S, McGill M, Dutta S, Koay Y, Lal LN, Lal S, Wu T, Ugander M, Wang A, Munoz PA, Wong J, Constantino MI, O'Sullivan J, Twigg SM, Puranik R. Myocardial fibrosis in type 2 diabetes is associated with functional and metabolomic parameters. Int J Cardiol 2022; 363:179-184. [PMID: 35724800 DOI: 10.1016/j.ijcard.2022.06.049] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 05/30/2022] [Accepted: 06/15/2022] [Indexed: 12/28/2022]
Affiliation(s)
- Mark Dennis
- Sydney Medical School, University of Sydney, Sydney, Australia; Department of Cardiology, Royal Prince Alfred Hospital, Sydney, Australia; Department of Aged Care, LifeHouse Hospital, Sydney, Australia.
| | - Sashie Howpage
- Sydney Medical School, University of Sydney, Sydney, Australia; Department of Endocrinology, Royal Prince Alfred Hospital, Sydney, Australia
| | - Margaret McGill
- Sydney Medical School, University of Sydney, Sydney, Australia; Department of Endocrinology, Royal Prince Alfred Hospital, Sydney, Australia
| | | | - Yen Koay
- Heart Research Institute, Sydney, Australia
| | - Lisa Nguyen Lal
- Sydney Medical School, University of Sydney, Sydney, Australia
| | - Sean Lal
- Sydney Medical School, University of Sydney, Sydney, Australia; Department of Cardiology, Royal Prince Alfred Hospital, Sydney, Australia
| | - Ted Wu
- Sydney Medical School, University of Sydney, Sydney, Australia; Department of Endocrinology, Royal Prince Alfred Hospital, Sydney, Australia
| | - Martin Ugander
- Sydney Medical School, University of Sydney, Sydney, Australia; Kolling Institute, Royal North Shore Hospital, and Charles Perkins Centre, University of Sydney, Sydney, Australia; Department of Clinical Physiology, Karolinska University Hospital, and Karolinska Institutet, Stockholm, Sweden
| | - Alexandra Wang
- Department of Cardiology, Royal Prince Alfred Hospital, Sydney, Australia; University of New South, Wales
| | - Phillip A Munoz
- Department of Respiratory Medicine, Royal Prince Alfred Hospital, Sydney, Australia
| | - Jencia Wong
- Sydney Medical School, University of Sydney, Sydney, Australia; Department of Endocrinology, Royal Prince Alfred Hospital, Sydney, Australia
| | - Maria I Constantino
- Sydney Medical School, University of Sydney, Sydney, Australia; Department of Endocrinology, Royal Prince Alfred Hospital, Sydney, Australia
| | - John O'Sullivan
- Sydney Medical School, University of Sydney, Sydney, Australia; Department of Cardiology, Royal Prince Alfred Hospital, Sydney, Australia; Heart Research Institute, Sydney, Australia
| | - Stephen M Twigg
- Sydney Medical School, University of Sydney, Sydney, Australia; Department of Endocrinology, Royal Prince Alfred Hospital, Sydney, Australia
| | - Rajesh Puranik
- Sydney Medical School, University of Sydney, Sydney, Australia; Department of Cardiology, Royal Prince Alfred Hospital, Sydney, Australia
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26
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Khanna S, Amarasekera AT, Li C, Bhat A, Chen HHL, Gan GCH, Ugander M, Tan TC. The utility of cardiac magnetic resonance imaging in the diagnosis of adult patients with acute myocarditis: A systematic review and meta-analysis. Int J Cardiol 2022; 363:225-239. [PMID: 35724801 DOI: 10.1016/j.ijcard.2022.06.047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 06/02/2022] [Accepted: 06/15/2022] [Indexed: 11/05/2022]
Abstract
BACKGROUND The presence of myocardial late gadolinium enhancement (LGE) indicates myocyte necrosis, and assists with the diagnosis of acute myocarditis (AM). Cardiac magnetic resonance (CMR) measures other than LGE i.e. tissue characterization and myocardial structural and functional parameters, play an important diagnostic role in assessment for inflammation, as seen in AM. The aim of this systematic review was to appraise the evidence for the use of quantitative CMR measures to identify myocardial inflammation in order to diagnose of AM in adult patients. METHODS A systematic literature search of medical databases was performed using PRISMA principles to identify relevant CMR studies on AM in adults (2005-2020; English; PROSPERO registration CRD42020180605). Data for a range of quantitative CMR measures were extracted. Continuous variables with low heterogeneity were meta-analyzed using a random-effects model for overall effect size measured as the standard mean difference (SMD). RESULTS Available data from 25 studies reporting continuous quantitative 1.5 T CMR measures revealed that AM is most reliably differentiated from healthy controls using T1 mapping (SMD 1.80, p < 0.01) and T2 mapping (SMD 1.63, p < 0.01), respectively. All other measures examined including T2-weighted ratio, extracellular volume, early gadolinium enhancement ratio, right ventricular ejection fraction, and LV end-diastolic volume, mass, ejection fraction, longitudinal strain, circumferential strain, and radial strain also had discriminatory ability although with smaller standard mean difference values (|SMD| 0.32-0.96, p < 0.01 for all). CONCLUSIONS Meta-analysis shows that myocardial tissue characterization (T1 mapping>T2 mapping) followed by measures of left ventricular structure and function demonstrate diagnostic discriminatory ability in AM.
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Affiliation(s)
- Shaun Khanna
- Department of Cardiology, Blacktown Hospital, Western Sydney Local Health District, Sydney, NSW, Australia
| | - Anjalee T Amarasekera
- Department of Cardiology, Blacktown Hospital, Western Sydney Local Health District, Sydney, NSW, Australia; University of University, Sydney, NSW, Australia; Western Sydney University, Sydney. NSW, Australia
| | - Cindy Li
- Department of Cardiology, Blacktown Hospital, Western Sydney Local Health District, Sydney, NSW, Australia
| | - Aditya Bhat
- Department of Cardiology, Blacktown Hospital, Western Sydney Local Health District, Sydney, NSW, Australia; University of University, Sydney, NSW, Australia; University of New South Wales, Sydney, NSW, Australia
| | - Henry H L Chen
- Department of Cardiology, Blacktown Hospital, Western Sydney Local Health District, Sydney, NSW, Australia; University of University, Sydney, NSW, Australia
| | - Gary C H Gan
- Department of Cardiology, Blacktown Hospital, Western Sydney Local Health District, Sydney, NSW, Australia; University of University, Sydney, NSW, Australia; University of New South Wales, Sydney, NSW, Australia
| | - Martin Ugander
- University of New South Wales, Sydney, NSW, Australia; Kolling Institute, Royal North Shore Hospital, University of Sydney, NSW, Australia; Department of Clinical Physiology, Karolinska University Hospital, and Karolinska Institute, Stockholm, Sweden
| | - Timothy C Tan
- Department of Cardiology, Blacktown Hospital, Western Sydney Local Health District, Sydney, NSW, Australia; University of University, Sydney, NSW, Australia; University of New South Wales, Sydney, NSW, Australia; Western Sydney University, Sydney. NSW, Australia.
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Meloni A, Martini N, Positano V, De Luca A, Pistoia L, Sbragi S, Spasiano A, Casini T, Bitti PP, Allò M, Sanna PMG, De Caterina R, Sinagra G, Pepe A. Myocardial iron overload by cardiovascular magnetic resonance native segmental T1 mapping: a sensitive approach that correlates with cardiac complications. J Cardiovasc Magn Reson 2021; 23:70. [PMID: 34120634 PMCID: PMC8201743 DOI: 10.1186/s12968-021-00765-w] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 04/28/2021] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND We compared cardiovascular magnetic resonance segmental native T1 against T2* values for the detection of myocardial iron overload (MIO) in thalassaemia major and we evaluated the clinical correlates of native T1 measurements. METHODS We considered 146 patients (87 females, 38.7 ± 11.1 years) consecutively enrolled in the Extension-Myocardial Iron Overload in Thalassaemia Network. T1 and T2* values were obtained in the 16 left ventricular (LV) segments. LV function parameters were quantified by cine images. Post-contrast late gadolinium enhancement (LGE) and T1 images were acquired. RESULTS 64.1% of segments had normal T2* and T1 values while 10.1% had pathologic T2* and T1 values. In 526 (23.0%) segments, there was a pathologic T1 and a normal T2* value while 65 (2.8%) segments had a pathologic T2* value but a normal T1 and an extracellular volume (ECV) ≥ 25% was detected in 16 of 19 segments where ECV was quantified. Global native T1 was independent from gender or LV function but decreased with increasing age. Patients with replacement myocardial fibrosis had significantly lower native global T1. Patients with cardiac complications had significantly lower native global T1. CONCLUSIONS The combined use of both segmental native T1 and T2* values could improve the sensitivity for detecting MIO. Native T1 is associated with cardiac complications in thalassaemia major.
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Affiliation(s)
- Antonella Meloni
- Magnetic Resonance Imaging Unit, Fondazione G. Monasterio CNR-Regione Toscana, Pisa, Italy
| | - Nicola Martini
- Magnetic Resonance Imaging Unit, Fondazione G. Monasterio CNR-Regione Toscana, Pisa, Italy
| | - Vincenzo Positano
- Magnetic Resonance Imaging Unit, Fondazione G. Monasterio CNR-Regione Toscana, Pisa, Italy
| | - Antonio De Luca
- Cardiovascular Department, University of Trieste, Trieste, Italy
| | - Laura Pistoia
- Magnetic Resonance Imaging Unit, Fondazione G. Monasterio CNR-Regione Toscana, Pisa, Italy
| | - Sara Sbragi
- Cardiovascular Division, University of Pisa, Pisa, Italy
| | - Anna Spasiano
- Unità Operativa Semplice Dipartimentale Malattie Rare del Globulo Rosso, Azienda Ospedaliera di Rilievo Nazionale "A. Cardarelli", Napoli, Italy
| | - Tommaso Casini
- Centro Talassemie ed Emoglobinopatie, Ospedale "Meyer", Firenze, Italy
| | - Pier Paolo Bitti
- Servizio Immunoematologia e Medicina Trasfusionale, Dipartimento dei Servizi, Presidio Ospedaliero "San Francesco" ASL Nuoro, Nuoro, Italy
| | - Massimo Allò
- Ematologia Microcitemia, Ospedale San Giovanni di Dio, ASP Crotone, Crotone, Italy
| | | | | | | | - Alessia Pepe
- Magnetic Resonance Imaging Unit, Fondazione G. Monasterio CNR-Regione Toscana, Pisa, Italy.
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Gupta S, Ge Y, Singh A, Gräni C, Kwong RY. Multimodality Imaging Assessment of Myocardial Fibrosis. JACC Cardiovasc Imaging 2021; 14:2457-2469. [PMID: 34023250 DOI: 10.1016/j.jcmg.2021.01.027] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 01/19/2021] [Accepted: 01/25/2021] [Indexed: 02/07/2023]
Abstract
Myocardial fibrosis, seen in ischemic and nonischemic cardiomyopathies, is associated with adverse cardiac outcomes. Noninvasive imaging plays a key role in early identification and quantification of myocardial fibrosis with the use of an expanding array of techniques including cardiac magnetic resonance, computed tomography, and nuclear imaging. This review discusses currently available noninvasive imaging techniques, provides insights into their strengths and limitations, and examines novel developments that will affect the future of noninvasive imaging of myocardial fibrosis.
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Affiliation(s)
- Sumit Gupta
- Department of Radiology Brigham and Women's Hospital, Boston, Massachusetts, USA; Noninvasive Cardiovascular Imaging Section, Cardiovascular Division, Department of Medicine and Department of Radiology, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Yin Ge
- Noninvasive Cardiovascular Imaging Section, Cardiovascular Division, Department of Medicine and Department of Radiology, Brigham and Women's Hospital, Boston, Massachusetts, USA; Division of Cardiology, Department of Medicine, St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Amitoj Singh
- Noninvasive Cardiovascular Imaging Section, Cardiovascular Division, Department of Medicine and Department of Radiology, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Christoph Gräni
- Noninvasive Cardiovascular Imaging Section, Cardiovascular Division, Department of Medicine and Department of Radiology, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Raymond Y Kwong
- Noninvasive Cardiovascular Imaging Section, Cardiovascular Division, Department of Medicine and Department of Radiology, Brigham and Women's Hospital, Boston, Massachusetts, USA.
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29
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Mawad W, Mertens L, Pagano JJ, Riesenkampff E, Reichert MJE, Mital S, Kantor PF, Greenberg M, Liu P, Nathan PC, Grosse-Wortmann L. Effect of anthracycline therapy on myocardial function and markers of fibrotic remodelling in childhood cancer survivors. Eur Heart J Cardiovasc Imaging 2021; 22:435-442. [PMID: 32535624 PMCID: PMC7984732 DOI: 10.1093/ehjci/jeaa093] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 11/01/2019] [Accepted: 05/07/2020] [Indexed: 01/11/2023] Open
Abstract
AIMS Anthracyclines are a cornerstone of paediatric cancer treatment. We aimed to quantify myocardial cardiac magnetic resonance (CMR) native T1 (NT1) and extracellular volume fraction (ECV) as markers of fibrosis in a cohort of childhood cancer survivors (CCS). METHODS AND RESULTS A cohort of CCS in remission underwent CMR T1 mapping. Diastolic function was assessed by echocardiography. Results were compared to a cohort of normal controls of similar age and gender. Fifty-five CCS and 46 controls were included. Both groups had similar mean left ventricular (LV) NT1 values (999 ± 36 vs. 1007 ± 32 ms, P = 0.27); ECV was higher (25.6 ± 6.9 vs. 20.7 ± 2.4%, P = 0.003) and intracellular mass was lower (37.5 ± 8.4 vs. 43.3 ± 9.9g/m2, P = 0.02) in CCS. The CCS group had lower LV ejection fraction (EF) and LV mass index with otherwise normal diastolic function in all but one patient. The proportion of subjects with elevated ECV compared to controls did not differ between subgroups with normal or reduced LV EF (22% vs. 28%; P = 0.13) and no correlations were found between LVEF and ECV. While average values remained within normal range, mitral E/E' (6.6 ± 1.6 vs. 5.9 ± 0.9, P = 0.02) was higher in CCS. Neither NT1 nor ECV correlated with diastolic function indices or cumulative anthracycline dose. CONCLUSIONS There is evidence for mild diffuse extracellular volume expansion in some asymptomatic CCS; myocyte loss could be part of the mechanism, accompanied by subtle changes in systolic and diastolic function. These findings suggest mild myocardial damage and remodelling after anthracycline treatment in some CCS which requires continued monitoring.
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Affiliation(s)
- Wadi Mawad
- Department of Paediatrics, The Hospital for Sick Children, University of Toronto, 555 University Ave., Toronto, M5G 1X8, ON, Canada
- Department of Paediatrics, Montreal Children’s Hospital, McGill University Health Centre, 1001 Decarie Blvd,Montreal, QC, H4A 3J1, Canada
| | - Luc Mertens
- Department of Paediatrics, The Hospital for Sick Children, University of Toronto, 555 University Ave., Toronto, M5G 1X8, ON, Canada
| | - Joseph J Pagano
- Department of Paedatrics, Stollery Children’s Hospital, University of Alberta, Edmonton, T6G 2B7, AB, Canada
| | - Eugenie Riesenkampff
- Department of Paediatrics, The Hospital for Sick Children, University of Toronto, 555 University Ave., Toronto, M5G 1X8, ON, Canada
| | - Marjolein J E Reichert
- Department of Paediatrics, The Hospital for Sick Children, University of Toronto, 555 University Ave., Toronto, M5G 1X8, ON, Canada
| | - Seema Mital
- Department of Paediatrics, The Hospital for Sick Children, University of Toronto, 555 University Ave., Toronto, M5G 1X8, ON, Canada
| | - Paul F Kantor
- Department of Pediatrics, Children's Hospital Los Angeles, Keck's School of Medicine of University of South California, 4650 Sunset Blvd, Los Angeles, CA 90027, USA
| | - Mark Greenberg
- Department of Paediatrics, The Hospital for Sick Children, University of Toronto, 555 University Ave., Toronto, M5G 1X8, ON, Canada
| | - Peter Liu
- Department of Paedatrics, Children’s Hospital of Eastern Ontario, University of Ottawa, 01 Smyth Rd, Ottawa, K1H 8L1, ON, Canada
| | - Paul C Nathan
- Department of Paediatrics, The Hospital for Sick Children, University of Toronto, 555 University Ave., Toronto, M5G 1X8, ON, Canada
| | - Lars Grosse-Wortmann
- Department of Paediatrics, The Hospital for Sick Children, University of Toronto, 555 University Ave., Toronto, M5G 1X8, ON, Canada
- Department of Pediatrics Doernbecher Children’s Hospital, Oregon Health and Science University, 700 SW Campus Drive, Portland, OR 97239, USA
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Han P, Zhang R, Wagner S, Xie Y, Cingolani E, Marban E, Christodoulou AG, Li D. Electrocardiogram-less, free-breathing myocardial extracellular volume fraction mapping in small animals at high heart rates using motion-resolved cardiovascular magnetic reesonance multitasking: a feasibility study in a heart failure with preserved ejection fraction rat model. J Cardiovasc Magn Reson 2021; 23:8. [PMID: 33568177 PMCID: PMC7877086 DOI: 10.1186/s12968-020-00699-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Accepted: 12/10/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Extracellular volume fraction (ECV) quantification with cardiovascular magnetic resonance (CMR) T1 mapping is a powerful tool for the characterization of focal or diffuse myocardial fibrosis. However, it is technically challenging to acquire high-quality T1 and ECV maps in small animals for preclinical research because of high heart rates and high respiration rates. In this work, we developed an electrocardiogram (ECG)-less, free-breathing ECV mapping method using motion-resolved CMR Multitasking on a 9.4 T small animal CMR system. The feasibility of characterizing diffuse myocardial fibrosis was tested in a rat heart failure model with preserved ejection fraction (HFpEF). METHODS High-salt fed rats diagnosed with HFpEF (n = 9) and control rats (n = 9) were imaged with the proposed ECV Multitasking technique. A 25-min exam, including two 4-min T1 Multitasking scans before and after gadolinium injection, were performed on each rat. It allows a cardiac temporal resolution of 20 ms for a heart rate of ~ 300 bpm. Myocardial ECV was calculated from the hematocrit (HCT) and fitted T1 values of the myocardium and the blood pool. Masson's trichrome stain was used to measure the extent of fibrosis. Welch's t-test was performed between control and HFpEF groups. RESULTS ECV was significantly higher in the HFpEF group (22.4% ± 2.5% vs. 18.0% ± 2.1%, P = 0.0010). A moderate correlation between the ECV and the extent of fibrosis was found (R = 0.59, P = 0.0098). CONCLUSIONS Motion-resolved ECV Multitasking CMR can quantify ECV in the rat myocardium at high heart rates without ECG triggering or respiratory gating. Elevated ECV found in the HFpEF group is consistent with previous human studies and well correlated with histological data. This technique has the potential to be a viable imaging tool for myocardial tissue characterization in small animal models.
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Affiliation(s)
- Pei Han
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA USA
- Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA USA
| | - Rui Zhang
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA USA
- Department of Cardiology, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Shawn Wagner
- Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA USA
| | - Yibin Xie
- Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA USA
| | - Eugenio Cingolani
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA USA
| | - Eduardo Marban
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA USA
| | - Anthony G. Christodoulou
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA USA
- Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA USA
| | - Debiao Li
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA USA
- Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA USA
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Zhou Z, Wang R, Wang H, Liu Y, Lu D, Sun Z, Yang G, Xu L. Myocardial extracellular volume fraction quantification in an animal model of the doxorubicin-induced myocardial fibrosis: a synthetic hematocrit method using 3T cardiac magnetic resonance. Quant Imaging Med Surg 2021; 11:510-520. [PMID: 33532252 DOI: 10.21037/qims-20-501] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Background Visualization of diffuse myocardial fibrosis is challenging and mainly relies on histology. Cardiac magnetic resonance (CMR), which uses extracellular contrast agents, is a rapidly developing technique for measuring the extracellular volume (ECV). The objective of this study was to evaluate the feasibility of the synthetic myocardial ECV fraction based on 3.0 T CMR compared with the conventional ECV fraction. Methods This study was approved by the local animal care and ethics committee. Fifteen beagle models with diffuse myocardial fibrosis, including 12 experimental and three control subjects, were generated by injecting doxorubicin 30 mg/m2 intravenously every three weeks for 24 weeks. Short-axis (SAX) and 4-chamber long-axis (LAX) T1 maps were acquired for both groups. The association between hematocrit (Hct) and native T1blood was derived from 9 non-contrast CMR T1 maps of 3 control beagles using regression analysis. Synthetic ECV was then calculated using the synthetic Hct and compared with conventional ECV at baseline and the 16th and 24th week after doxorubicin administration. The collagen volume fraction (CVF) value was measured on digital biopsy samples. Bland-Altman plots were used to analyze the agreement between conventional and synthetic ECV. Correlation analyses were performed to explore the association among conventional ECV, synthetic ECV, CVF, and left ventricular ejection fraction (LVEF). Results The regression model synthetic Hct = 816.46*R1blood - 0.01 (R2=0.617; P=0.012) was used to predict the Hct from native T1blood values. The conventional and synthetic ECV fractions of experimental animals at the 16th and 24th week after modeling were significantly higher than those measured at the baseline (31.4%±2.2% and 36.3%±2.1% vs. 22.9%±1.7%; 29.9%±2.4% and 36.1%±2.6% vs. 22.0%±2.4%; all with P<0.05). Bland-Altman plots showed a bias (1.0%) between conventional and synthetic ECV with 95% limits of agreement of -2.5% to 4.4% in the per-subject analysis (n=21) and a bias (1.0%) between conventional and synthetic ECV with 95% limits of agreement of -2.4% to 4.3% in the per-segment analysis (n=294). Conventional and synthetic ECV were well correlated with CVF (r=0.937 and 0.925, all with P<0.001, n=10). Conclusions Our study showed promising results for using synthetic ECV compared with the conventional ECV for providing accurate quantification of myocardial ECV without the need for blood sampling.
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Affiliation(s)
- Zhen Zhou
- Department of Radiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Rui Wang
- Department of Radiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Hui Wang
- Department of Radiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Yi Liu
- Department of Radiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Dongxu Lu
- Department of Radiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Zhonghua Sun
- Department of Medical Radiation Sciences, Curtin University, Perth, WA, Australia
| | - Guang Yang
- Cardiovascular Research Centre, Royal Brompton Hospital, London, UK.,National Heart and Lung Institute, Imperial College London, London, UK
| | - Lei Xu
- Department of Radiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
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Measuring myocardial extracellular volume of the right ventricle in patients with congenital heart disease. Sci Rep 2021; 11:2679. [PMID: 33514806 PMCID: PMC7846852 DOI: 10.1038/s41598-021-81440-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 01/04/2021] [Indexed: 01/29/2023] Open
Abstract
The right ventricle´s (RV) characteristics—thin walls and trabeculation—make it challenging to evaluate extracellular volume (ECV). We aimed to assess the feasibility of RV ECV measurements in congenital heart disease (CHD), and to introduce a novel ECV analysis tool. Patients (n = 39) and healthy controls (n = 17) underwent cardiovascular magnetic resonance T1 mapping in midventricular short axis (SAX) and transverse orientation (TRANS). Regions of interest (ROIs) were evaluated with regard to image quality and maximum RV wall thickness per ROI in pixels. ECV from plane ROIs was compared with values obtained with a custom-made tool that derives the mean T1 values from a “line of interest” (LOI) centered in the RV wall. In CHD, average image quality was good (no artifacts in the RV, good contrast between blood/myocardium), and RV wall thickness was 1–2 pixels. RV ECV was not quantifiable in 4/39 patients due to insufficient contrast or wall thickness < 1 pixel. RV myocardium tended to be more clearly delineated in SAX than TRANS. ECV from ROIs and corresponding LOIs correlated strongly in both directions (SAX/TRANS: r = 0.97/0.87, p < 0.001, respectively). In conclusion, RV ECV can be assessed if image quality allows sufficient distinction between myocardium and blood, and RV wall thickness per ROI is ≥ 1 pixel. T1 maps in SAX are recommended for RV ECV analysis. LOI application simplifies RV ECV measurements.
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Yuan C, Miller Z, Zhao XQ. Magnetic Resonance Imaging: Cardiovascular Applications for Clinical Trials. Mol Imaging 2021. [DOI: 10.1016/b978-0-12-816386-3.00059-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Louis JS, Odille F, Mandry D, De Chillou C, Huttin O, Felblinger J, Venner C, Beaumont M. Design and evaluation of an abbreviated pixelwise dynamic contrast enhancement analysis protocol for early extracellular volume fraction estimation. Magn Reson Imaging 2020; 76:61-68. [PMID: 33227403 DOI: 10.1016/j.mri.2020.11.007] [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: 07/17/2020] [Revised: 11/15/2020] [Accepted: 11/15/2020] [Indexed: 11/30/2022]
Abstract
INTRODUCTION T1-based method is considered as the gold standard for extracellular volume fraction (ECV) mapping. This technique requires at least a 10 min delay after injection to acquire the post injection T1 map. Quantitative analysis of Dynamic Contrast Enhancement (DCE) images could lead to an earlier estimation of an ECV like parameter (2 min). The purpose of this study was to design a quantitative pixel-wise DCE analysis workflow to assess the feasibility of an early estimation of ECV. METHODS Fourteen patients with mitral valve prolapse were included in this study. The MR protocol, performed on a 3 T MR scanner, included MOLLI sequences for T1 maps acquisition and a standard SR-turboFlash sequence for dynamic acquisition. DCE data were acquired for at least 120 s. We implemented a full DCE analysis pipeline with a pre-processing step using an innovative motion correction algorithm (RC-REG algorithm) and a post-processing step using the extended Tofts Model (ECVETM). Estimated ECVETM maps were compared to standard T1-based ECV maps (ECVT1) with both a Pearson correlation analysis and a group-wise analysis. RESULTS Image and map quality assessment showed systematic improvements using the proposed workflow. Strong correlation was found between ECVETM, and ECVT1 values (r-square = 0.87). CONCLUSION A DCE analysis workflow based on RC-REG algorithm and ETM analysis can provide good quality parametric maps. Therefore, it is possible to extract ECV values from a 2 min-long DCE acquisition that are strongly correlated with ECV values from the T1 based method.
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Affiliation(s)
- J S Louis
- IADI, INSERM U1254, Université de Lorraine, Nancy, France.
| | - F Odille
- IADI, INSERM U1254, Université de Lorraine, Nancy, France; CIC-IT, INSERM 1433, Université de Lorraine and CHRU Nancy, Nancy, France.
| | - D Mandry
- IADI, INSERM U1254, Université de Lorraine, Nancy, France; Pôle Imagerie, CHRU Nancy, Nancy, France.
| | - C De Chillou
- IADI, INSERM U1254, Université de Lorraine, Nancy, France; Pôle Cardiologie, CHRU Nancy, Nancy, France.
| | - O Huttin
- Pôle Cardiologie, CHRU Nancy, Nancy, France.
| | - J Felblinger
- IADI, INSERM U1254, Université de Lorraine, Nancy, France; CIC-IT, INSERM 1433, Université de Lorraine and CHRU Nancy, Nancy, France; Pôle Imagerie, CHRU Nancy, Nancy, France.
| | - C Venner
- Pôle Cardiologie, CHRU Nancy, Nancy, France
| | - M Beaumont
- IADI, INSERM U1254, Université de Lorraine, Nancy, France; CIC-IT, INSERM 1433, Université de Lorraine and CHRU Nancy, Nancy, France.
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Bush MA, Pan Y, Jin N, Liu Y, Varghese J, Ahmad R, Simonetti OP. Prospective correction of patient-specific respiratory motion in myocardial T 1 and T 2 mapping. Magn Reson Med 2020; 85:855-867. [PMID: 32851676 DOI: 10.1002/mrm.28475] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 06/29/2020] [Accepted: 07/22/2020] [Indexed: 11/11/2022]
Abstract
PURPOSE Respiratory motion in cardiovascular MRI presents a challenging problem with many potential solutions. Current approaches require breath-holds, apply retrospective image registration, or significantly increase scan time by respiratory gating. Myocardial T1 and T2 mapping techniques are particularly sensitive to motion as they require multiple source images to be accurately aligned prior to the estimation of tissue relaxation. We propose a patient-specific prospective motion correction (PROCO) strategy that corrects respiratory motion on the fly with the goal of reducing the spatial variation of myocardial parametric mapping techniques. METHODS A rapid, patient-specific training scan was performed to characterize respiration-induced motion of the heart relative to a diaphragmatic navigator, and a parametric mapping pulse sequence utilized the resulting motion model to prospectively update the scan plane in real-time. Midventricular short-axis T1 and T2 maps were acquired under breath-hold or free-breathing conditions with and without PROCO in 7 healthy volunteers and 3 patients. T1 and T2 were measured in 6 segments and compared to reference standard breath-hold measurements using Bland-Altman analysis. RESULTS PROCO significantly reduced the spatial variation of parametric maps acquired during free-breathing, producing limits of agreement of -47.16 to 30.98 ms (T1 ) and -1.35 to 4.02 ms (T2 ), compared to -67.77 to 74.34 ms (T1 ) and -2.21 to 5.62 ms (T2 ) for free-breathing acquisition without PROCO. CONCLUSION Patient-specific respiratory PROCO method significantly reduced the spatial variation of myocardial T1 and T2 mapping, while allowing for 100% efficient free-breathing acquisitions.
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Affiliation(s)
- Michael A Bush
- Biomedical Engineering, The Ohio State University, Columbus, Ohio, USA
| | - Yue Pan
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - Ning Jin
- Cardiovascular MR R&D, Siemens Medical Solutions USA Inc, Columbus, Ohio, USA
| | - Yingmin Liu
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - Juliet Varghese
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - Rizwan Ahmad
- Biomedical Engineering, The Ohio State University, Columbus, Ohio, USA.,Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio, USA.,Electrical and Computer Engineering, The Ohio State University, Columbus, Ohio, USA
| | - Orlando P Simonetti
- Biomedical Engineering, The Ohio State University, Columbus, Ohio, USA.,Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio, USA.,Internal Medicine, The Ohio State University, Columbus, Ohio, USA.,Radiology, The Ohio State University, Columbus, Ohio, USA
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Zhang L, Yang ZG, Xu H, Yang MX, Xu R, Chen L, Sun R, Miao T, Zhao J, Zhou X, Fu C, Guo Y. Histological Validation of Cardiovascular Magnetic Resonance T1 Mapping for Assessing the Evolution of Myocardial Injury in Myocardial Infarction: An Experimental Study. Korean J Radiol 2020; 21:1294-1304. [PMID: 32783415 PMCID: PMC7689143 DOI: 10.3348/kjr.2020.0107] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 04/09/2020] [Accepted: 04/24/2020] [Indexed: 02/05/2023] Open
Abstract
Objective To determine whether T1 mapping could monitor the dynamic changes of injury in myocardial infarction (MI) and be histologically validated. Materials and Methods In 22 pigs, MI was induced by ligating the left anterior descending artery and they underwent serial cardiovascular magnetic resonance examinations with modified Look-Locker inversion T1 mapping and extracellular volume (ECV) computation in acute (within 24 hours, n = 22), subacute (7 days, n = 13), and chronic (3 months, n = 7) phases of MI. Masson's trichrome staining was performed for histological ECV calculation. Myocardial native T1 and ECV were obtained by region of interest measurement in infarcted, peri-infarct, and remote myocardium. Results Native T1 and ECV in peri-infarct myocardium differed from remote myocardium in acute (1181 ± 62 ms vs. 1113 ± 64 ms, p = 0.002; 24 ± 4% vs. 19 ± 4%, p = 0.031) and subacute phases (1264 ± 41 ms vs. 1171 ± 56 ms, p < 0.001; 27 ± 4% vs. 22 ± 2%, p = 0.009) but not in chronic phase (1157 ± 57 ms vs. 1120 ± 54 ms, p = 0.934; 23 ± 2% vs. 20 ± 1%, p = 0.109). From acute to chronic MI, infarcted native T1 peaked in subacute phase (1275 ± 63 ms vs. 1637 ± 123 ms vs. 1471 ± 98 ms, p < 0.001), while ECV progressively increased with time (35 ± 7% vs. 46 ± 6% vs. 52 ± 4%, p < 0.001). Native T1 correlated well with histological findings (R2 = 0.65 to 0.89, all p < 0.001) so did ECV (R2 = 0.73 to 0.94, all p < 0.001). Conclusion T1 mapping allows the quantitative assessment of injury in MI and the noninvasive monitoring of tissue injury evolution, which correlates well with histological findings.
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Affiliation(s)
- Lu Zhang
- Department of Radiology, Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Zhi Gang Yang
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
| | - Huayan Xu
- Department of Radiology, Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Meng Xi Yang
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, China
| | - Rong Xu
- Department of Radiology, Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Lin Chen
- Department of Radiology, Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Ran Sun
- Key Laboratory of Obstetrics & Gynecology and Pediatric Disease and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Tianyu Miao
- Vascular Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Jichun Zhao
- Vascular Surgery, West China Hospital, Sichuan University, Chengdu, China
| | | | - Chuan Fu
- Department of Radiology, West China Second Hospital, Sichuan University, Chengdu, China
| | - Yingkun Guo
- Department of Radiology, Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China.
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Im DJ, Hong SJ, Park EA, Kim EY, Jo Y, Kim J, Park CH, Yong HS, Lee JW, Hur JH, Yang DH, Lee BY. Guidelines for Cardiovascular Magnetic Resonance Imaging from the Korean Society of Cardiovascular Imaging-Part 3: Perfusion, Delayed Enhancement, and T1- and T2 Mapping. Korean J Radiol 2020; 20:1562-1582. [PMID: 31854146 PMCID: PMC6923208 DOI: 10.3348/kjr.2019.0411] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 11/20/2019] [Indexed: 12/20/2022] Open
Abstract
This document is the third part of the guidelines for the protocol, the interpretation and post-processing of cardiac magnetic resonance (CMR) studies. These consensus recommendations have been developed by the Consensus Committee of the Korean Society of Cardiovascular Imaging to standardize the requirements for image interpretation and post-processing of CMR. This third part of the recommendations describes tissue characterization modules, including perfusion, late gadolinium enhancement, and T1- and T2 mapping. Additionally, this document provides guidance for visual and quantitative assessment consisting of “What-to-See,” “How-To,” and common pitfalls for the analysis of each module. The Consensus Committee hopes that this document will contribute to the standardization of image interpretation and post-processing of CMR studies.
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Affiliation(s)
- Dong Jin Im
- Department of Radiology and Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Su Jin Hong
- Department of Radiology, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Korea
| | - Eun Ah Park
- Department of Radiology, Seoul National University Hospital, Seoul, Korea.
| | - Eun Young Kim
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
| | - Yeseul Jo
- Department of Radiology, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Incheon, Korea
| | - JeongJae Kim
- Department of Radiology, Jeju National University Hospital, Jeju, Korea
| | - Chul Hwan Park
- Department of Radiology and Research Institute of Radiological Science, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Hwan Seok Yong
- Department of Radiology, Korea University Guro Hospital, Seoul, Korea
| | - Jae Wook Lee
- Department of Radiology, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Jee Hye Hur
- Department of Radiology, Hanil General Hospital, Seoul, Korea
| | - Dong Hyun Yang
- Department of Radiology, Seoul National University Hospital, Seoul, Korea
| | - Bae Young Lee
- Department of Radiology and Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
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Diffusely Increased Myocardial Extracellular Volume With or Without Focal Late Gadolinium Enhancement. J Thorac Imaging 2020; 37:17-25. [DOI: 10.1097/rti.0000000000000515] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Altaha MA, Nolan M, Marwick TH, Somerset E, Houbois C, Amir E, Yip P, Connelly KA, Michalowska M, Sussman MS, Wintersperger BJ, Thavendiranathan P. Can Quantitative CMR Tissue Characterization Adequately Identify Cardiotoxicity During Chemotherapy? JACC Cardiovasc Imaging 2020; 13:951-962. [DOI: 10.1016/j.jcmg.2019.10.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 10/08/2019] [Accepted: 10/24/2019] [Indexed: 10/25/2022]
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40
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Urzua Fresno C, Shalmon T, Calvillo Argüelles O, Wintersperger BJ, Thavendiranathan P. Cardiovascular Magnetic Resonance Relaxometry in Early Detection of Anthracycline Cardiotoxicity. CURRENT CARDIOVASCULAR IMAGING REPORTS 2020. [DOI: 10.1007/s12410-019-9524-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Liang YD, Xu YW, Li WH, Wan K, Sun JY, Lin JY, Zhang Q, Zhou XY, Chen YC. Left ventricular function recovery in peripartum cardiomyopathy: a cardiovascular magnetic resonance study by myocardial T1 and T2 mapping. J Cardiovasc Magn Reson 2020; 22:2. [PMID: 31902370 PMCID: PMC6943890 DOI: 10.1186/s12968-019-0590-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 12/05/2019] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Peripartum cardiomyopathy (PPCM) is rare and potentially life-threatening; its etiology remains unclear. Imaging characteristics on cardiovascular magnetic resonance (CMR) and their prognostic significance have rarely been studied. We sought to determine CMR's prognostic value in PPCM by using T1 and T2 mapping techniques. METHODS Data from 21 PPCM patients from our CMR registry database were analyzed. The control group comprised 20 healthy age-matched females. All subjects underwent comprehensive contrast-enhanced CMR. T1 and T2 mapping using modified Look-Locker inversion recovery and T2 prep balanced steady-state free precession sequences, respectively. Ventricular size and function, late gadolinium enhancement (LGE), myocardial T1 value, extracellular volume (ECV), and T2 value were analyzed. Transthoracic echocardiography was performed at baseline and during follow-up. The recovered left ventricular ejection fraction (LVEF) was defined as LVEF ≥50% on echocardiography follow-up after at least 6 months of the diagnosis. RESULTS CMR imaging showed that the PPCM patients had severely impaired LVEF and right ventricular ejection fraction (LVEF: 26.8 ± 10.6%; RVEF: 33.9 ± 14.6%). LGE was seen in eight (38.1%) cases. PPCM patients had significantly higher native T1 and ECV (1345 ± 79 vs. 1212 ± 32 ms, P < 0.001; 33.9 ± 5.2% vs. 27.1 ± 3.1%, P < 0.001; respectively) and higher myocardial T2 value (42.3 ± 3.7 vs. 36.8 ± 2.3 ms, P < 0.001) than did the normal controls. After a median 2.5-year follow-up (range: 8 months-5 years), six patients required readmission for heart failure, two died, and 10 showed left ventricular function recovery. The LVEF-recovered group showed significantly lower ECV (30.7 ± 2.1% vs. 36.8 ± 5.6%, P = 0.005) and T2 (40.6 ± 3.0 vs. 43.9 ± 3.7 ms, P = 0.040) than the unrecovered group. Multivariable logistic regression analysis showed ECV (OR = 0.58 for per 1% increase, P = 0.032) was independently associated with left ventricular recovery in PPCM. CONCLUSIONS Compared to normal controls, PPCM patients showed significantly higher native T1, ECV, and T2. Native T1, ECV, and T2 were associated with LVEF recovery in PPCM. Furthermore, ECV could independently predict left ventricular function recovery in PPCM.
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Affiliation(s)
- Yao-Dan Liang
- Department of Cardiology, West China Hospital, Sichuan University, No.37, Guo Xue Xiang, Chengdu, Sichuan 610041 People’s Republic of China
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Beijing, China
- Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yuan-Wei Xu
- Department of Cardiology, West China Hospital, Sichuan University, No.37, Guo Xue Xiang, Chengdu, Sichuan 610041 People’s Republic of China
| | - Wei-Hao Li
- Department of Cardiology, West China Hospital, Sichuan University, No.37, Guo Xue Xiang, Chengdu, Sichuan 610041 People’s Republic of China
| | - Ke Wan
- Department of Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan China
| | - Jia-Yu Sun
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, Sichuan China
| | - Jia-Yi Lin
- Department of Cardiology, West China Hospital, Sichuan University, No.37, Guo Xue Xiang, Chengdu, Sichuan 610041 People’s Republic of China
| | - Qing Zhang
- Department of Cardiology, West China Hospital, Sichuan University, No.37, Guo Xue Xiang, Chengdu, Sichuan 610041 People’s Republic of China
| | - Xiao-Yue Zhou
- MR Collaboration, Siemens Healthineers Ltd., Shanghai, China
| | - Yu-Cheng Chen
- Department of Cardiology, West China Hospital, Sichuan University, No.37, Guo Xue Xiang, Chengdu, Sichuan 610041 People’s Republic of China
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Maanja M, Schlegel TT, Kozor R, Lundin M, Wieslander B, Wong TC, Schelbert EB, Ugander M. The electrical determinants of increased wall thickness and mass in left ventricular hypertrophy. J Electrocardiol 2020; 58:80-86. [DOI: 10.1016/j.jelectrocard.2019.09.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 09/08/2019] [Accepted: 09/20/2019] [Indexed: 01/09/2023]
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Dennis M, Ugander M, Kozor R, Puranik R. Cardiovascular Magnetic Resonance Imaging of Inherited Heart Conditions. Heart Lung Circ 2019; 29:584-593. [PMID: 32033894 DOI: 10.1016/j.hlc.2019.12.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 11/21/2019] [Accepted: 12/03/2019] [Indexed: 12/26/2022]
Abstract
Imaging modalities are central to diagnosis and prognostication of confirmed or suspected inherited cardiomyopathies. The availability and use of cardiovascular magnetic resonance imaging (CMR) to supplement traditional modalities has increased substantially and has several advantages over traditional imaging techniques. CMR is unique in its ability to easily acquire images in any plane. Moreover, advances in CMR sequences have begun to enable characterisation of the myocardium without the need for invasive biopsy and has provided a major step forward in the understanding of inherited heart disease pathology and genotype-phenotype interactions. This review summarises the current role of CMR in inherited cardiomyopathies depending on their genotype and phenotype status, using arrhythmogenic right ventricular dysplasia/cardiomyopathy and hypertrophic cardiomyopathy as prototypical examples.
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Affiliation(s)
- Mark Dennis
- Sydney Medical School, University of Sydney, Sydney, NSW, Australia; Department of Cardiology, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - Martin Ugander
- Kolling Institute, Royal North Shore Hospital, and Northern Clinical School, Sydney Medical School, University of Sydney, Sydney, NSW, Australia; Department of Clinical Physiology, Karolinska University Hospital, and Karolinska Institute, Stockholm, Sweden
| | - Rebecca Kozor
- Kolling Institute, Royal North Shore Hospital, and Northern Clinical School, Sydney Medical School, University of Sydney, Sydney, NSW, Australia
| | - Rajesh Puranik
- Sydney Medical School, University of Sydney, Sydney, NSW, Australia; Department of Cardiology, Royal Prince Alfred Hospital, Sydney, NSW, Australia.
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Mahon C, Mohiaddin RH. The emerging applications of cardiovascular magnetic resonance imaging in transcatheter aortic valve implantation. Clin Radiol 2019; 76:73.e21-73.e37. [PMID: 31879023 DOI: 10.1016/j.crad.2019.11.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 11/13/2019] [Indexed: 12/22/2022]
Abstract
Transcatheter aortic valve implantation (TAVI) is an alternative to surgical aortic valve replacement in selected patients with severe symptomatic aortic stenosis (AS) and high surgical risk. The planning and follow-up of TAVI requires an array of imaging techniques, each has advantages and limitations. Echocardiography and multidetector computer tomography (MDCT) have established applications in patient selection and procedure guidance, but are limited in some patients. TAVI applications of cardiovascular magnetic resonance imaging (CMRI) are emerging. CMRI can provide the structural and functional imaging details required for TAVI procedure in away comparable or superior to that obtained by echocardiography and MDCT combined. In this review, we look at the continuously evolving role of CMRI as a complimentary or an alternative to more established imaging techniques and address the advantages and disadvantages of CMRI in this setting. We discuss the role of CMRI in selecting anatomically suitable patients for the TAVI procedure and in the post-TAVI follow-up with particular emphasis on its applications for assessing AS severity and haemodynamic impact, vascular imaging for TAVI access route, quantification of paravalvular leaks and LV remodelling in the post TAVI setting as well as providing imaging biomarkers tool for AS risk-stratification.
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Affiliation(s)
- C Mahon
- Royal Brompton and Harefield NHS Foundation Trust, London, UK
| | - R H Mohiaddin
- Royal Brompton and Harefield NHS Foundation Trust, London, UK; National Heart and Lung Institute, Imperial College London, London, UK.
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Nickander J, Themudo R, Thalén S, Sigfridsson A, Xue H, Kellman P, Ugander M. The relative contributions of myocardial perfusion, blood volume and extracellular volume to native T1 and native T2 at rest and during adenosine stress in normal physiology. J Cardiovasc Magn Reson 2019; 21:73. [PMID: 31767018 PMCID: PMC6876099 DOI: 10.1186/s12968-019-0585-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 10/22/2019] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Both ischemic and non-ischemic heart disease can cause disturbances in the myocardial blood volume (MBV), myocardial perfusion and the myocardial extracellular volume fraction (ECV). Recent studies suggest that native myocardial T1 mapping can detect changes in MBV during adenosine stress without the use of contrast agents. Furthermore, native T2 mapping could also potentially be used to quantify changes in myocardial perfusion and/or MBV. Therefore, the aim of this study was to explore the relative contributions of myocardial perfusion, MBV and ECV to native T1 and native T2 at rest and during adenosine stress in normal physiology. METHODS Healthy subjects (n = 41, 26 ± 5 years, 51% females) underwent 1.5 T cardiovascular magnetic resonance (CMR) scanning. Quantitative myocardial perfusion [ml/min/g] and MBV [%] maps were computed from first pass perfusion imaging at adenosine stress (140 microg/kg/min infusion) and rest following an intravenous contrast bolus (0.05 mmol/kg, gadobutrol). Native T1 and T2 maps were acquired before and during adenosine stress. T1 maps at rest and stress were also acquired following a 0.2 mmol/kg cumulative intravenous contrast dose, rendering rest and stress ECV maps [%]. Myocardial T1, T2, perfusion, MBV and ECV values were measured by delineating a region of interest in the midmural third of the myocardium. RESULTS During adenosine stress, there was an increase in myocardial native T1, native T2, perfusion, MBV, and ECV (p ≤ 0.001 for all). Myocardial perfusion, MBV and ECV all correlated with both native T1 and native T2, respectively (R2 = 0.35 to 0.61, p < 0.001 for all). Multivariate linear regression revealed that ECV and perfusion together best explained the change in native T2 (ECV beta 0.21, p = 0.02, perfusion beta 0.66, p < 0.001, model R2 = 0.64, p < 0.001), and native T1 (ECV beta 0.50, p < 0.001, perfusion beta 0.43, p < 0.001, model R2 = 0.69, p < 0.001). CONCLUSIONS Myocardial native T1, native T2, perfusion, MBV, and ECV all increase during adenosine stress. Changes in myocardial native T1 and T2 during adenosine stress in normal physiology can largely be explained by the combined changes in myocardial perfusion and ECV. TRIAL REGISTRATION Clinicaltrials.gov identifier NCT02723747. Registered March 16, 2016.
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Affiliation(s)
- Jannike Nickander
- Department of Clinical Physiology, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden
| | - Raquel Themudo
- Department of Clinical Physiology, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden
- Department of Radiology, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden
| | - Simon Thalén
- Department of Clinical Physiology, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden
| | - Andreas Sigfridsson
- Department of Clinical Physiology, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden
| | - Hui Xue
- National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD USA
| | - Peter Kellman
- National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD USA
| | - Martin Ugander
- Department of Clinical Physiology, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden
- Kolling Institute, Royal North Shore Hospital, and Northern Clinical School, Sydney Medical School, University of Sydney, Sydney, Australia
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Blom KB, Bergo KK, Espe EKS, Rosseland V, Grøtta OJ, Mjøen G, Åsberg A, Bergan S, Sanner H, Bergersen TK, Bjørnerheim R, Skauby M, Seljeflot I, Waldum-Grevbo B, Dahle DO, Sjaastad I, Birkeland JA. Cardiovascular rEmodelling in living kidNey donorS with reduced glomerular filtration rate: rationale and design of the CENS study. Blood Press 2019; 29:123-134. [PMID: 31718316 DOI: 10.1080/08037051.2019.1684817] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Purpose: Until recently, it has been believed that donating a kidney not represents any risk for development of cardiovascular disease. However, a recent Norwegian epidemiological study suggests that kidney donors have an increased long-term risk of cardiovascular mortality. The pathophysiological mechanisms linking reduced kidney function to cardiovascular disease are not known. Living kidney donors are screened for cardiovascular morbidity before unilateral nephrectomy, and are left with mildly reduced glomerular filtration rate (GFR) after donation. Therefore, they represent an unique model for investigating the pathogenesis linking reduced GFR to cardiovascular disease and cardiovascular remodelling. We present the study design of Cardiovascular rEmodelling in living kidNey donorS with reduced glomerular filtration rate (CENS), which is an investigator-initiated prospective observational study on living kidney donors. The hypothesis is that living kidney donors develop cardiovascular remodelling due to a reduction of GFR.Materials and methods: 60 living kidney donors and 60 age and sex matched healthy controls will be recruited. The controls will be evaluated to fulfil the Norwegian transplantation protocol for living kidney donors. Investigations will be performed at baseline and after 1, 3, 6 and 10 years in both groups. The investigations include cardiac magnetic resonance imaging, echocardiography, bone density scan, flow mediated dilatation, laser Doppler flowmetry, nailfold capillaroscopy, office blood pressure, 24-h ambulatory blood pressure, heart rate variability and investigation of microbiota and biomarkers for inflammation, cardiovascular risk and the calcium-phosphate metabolism.Conclusions: The present study seeks to provide new insight in the pathophysiological mechanisms linking reduced kidney function to cardiovascular disease. In addition, we aim to enlighten predictors of adverse cardiovascular outcome in living kidney donors. The study is registered at Clinical-Trials.gov (identifier: NCT03729557).
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Affiliation(s)
- Kjersti Benedicte Blom
- Institute for Experimental Medical Research, Oslo University Hospital, Ullevål, Oslo, Norway.,University of Oslo, Oslo, Norway.,KG Jebsen Center for Cardiac Research, University of Oslo, Oslo, Norway.,Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway.,Department of Nephrology, Oslo University Hospital, Ullevål, Oslo, Norway
| | - Kaja Knudsen Bergo
- Institute for Experimental Medical Research, Oslo University Hospital, Ullevål, Oslo, Norway.,University of Oslo, Oslo, Norway.,KG Jebsen Center for Cardiac Research, University of Oslo, Oslo, Norway.,Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway
| | - Emil Knut Stenersen Espe
- Institute for Experimental Medical Research, Oslo University Hospital, Ullevål, Oslo, Norway.,University of Oslo, Oslo, Norway.,KG Jebsen Center for Cardiac Research, University of Oslo, Oslo, Norway.,Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway
| | - Vigdis Rosseland
- Department of Radiology, Division of Radiology and Nuclear Medicine, Oslo University Hospital, Ullevål, Oslo, Norway
| | - Ole Jørgen Grøtta
- Department of Radiology, Division of Radiology and Nuclear Medicine, Oslo University Hospital, Ullevål, Oslo, Norway
| | - Geir Mjøen
- Department of Transplantation Medicine, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - Anders Åsberg
- Department of Transplantation Medicine, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - Stein Bergan
- Department of Pharmacology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - Helga Sanner
- Department of Rheumatology, Oslo University Hospital, Rikshospitalet, Oslo, Norway.,Bjørknes University College, Oslo, Norway
| | - Tone Kristin Bergersen
- Department of Dermatology, Oslo University Hospital, Rikshospitalet, Oslo, Norway.,Institute for Clinical Medicine, University of Oslo, Oslo, Norway
| | - Reidar Bjørnerheim
- Department of Cardiology, Oslo University Hospital, Ullevål, Oslo, Norway
| | - Morten Skauby
- Department of Transplantation Medicine, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - Ingebjørg Seljeflot
- Institute for Clinical Medicine, University of Oslo, Oslo, Norway.,Center for Clinical Heart Research, Department of Cardiology, Oslo University Hospital, Ullevål, Oslo, Norway
| | - Bård Waldum-Grevbo
- Department of Nephrology, Oslo University Hospital, Ullevål, Oslo, Norway
| | - Dag Olav Dahle
- Department of Transplantation Medicine, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - Ivar Sjaastad
- Institute for Experimental Medical Research, Oslo University Hospital, Ullevål, Oslo, Norway.,University of Oslo, Oslo, Norway.,KG Jebsen Center for Cardiac Research, University of Oslo, Oslo, Norway.,Department of Cardiology, Oslo University Hospital, Ullevål, Oslo, Norway.,Center for Clinical Heart Research, Department of Cardiology, Oslo University Hospital, Ullevål, Oslo, Norway
| | - Jon Arne Birkeland
- Department of Nephrology, Oslo University Hospital, Ullevål, Oslo, Norway
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Robinson AA, Chow K, Salerno M. Myocardial T1 and ECV Measurement: Underlying Concepts and Technical Considerations. JACC Cardiovasc Imaging 2019; 12:2332-2344. [PMID: 31542529 PMCID: PMC7008718 DOI: 10.1016/j.jcmg.2019.06.031] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 05/31/2019] [Accepted: 06/28/2019] [Indexed: 12/25/2022]
Abstract
Myocardial native T1 and extracellular volume fraction (ECV) mapping have emerged as cardiac magnetic resonance biomarkers providing unique insight into cardiac pathophysiology. Single breath-hold acquisition techniques, available on clinical scanners across multiple vendor platforms, have made clinical T1 and ECV mapping a reality. Although the relationship between changes in native T1 and alterations in cardiac microstructure is complex, an understanding of how edema, blood volume, myocyte and interstitial expansion, lipids, and paramagnetic substances affect T1 and ECV can provide insight into how and why these parameters change in various cardiac pathologies. The goals of this state-of-the-art review will be to review factors influencing native T1 and ECV, to describe how native T1 and ECV are measured, to discuss potential challenges and pitfalls in clinical practice, and to describe new T1 mapping techniques on the horizon.
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Affiliation(s)
- Austin A Robinson
- Department of Medicine, Cardiovascular Division, University of Virginia Health System, Charlottesville, Virginia
| | - Kelvin Chow
- Siemens Medical Solutions USA, Inc., Chicago, Illinois
| | - Michael Salerno
- Department of Medicine, Cardiovascular Division, University of Virginia Health System, Charlottesville, Virginia; Radiology and Medical Imaging, University of Virginia Health System, Charlottesville, Virginia; Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia.
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Myocardial extracellular volume fraction measurements with MOLLI 5(3)3 by cardiovascular MRI for the discrimination of healthy volunteers from dilated and hypertrophic cardiomyopathy patients. Clin Radiol 2019; 74:732.e9-732.e16. [DOI: 10.1016/j.crad.2019.04.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 04/18/2019] [Indexed: 01/22/2023]
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Nordlund D, Xanthis C, Bidhult S, Jablonowski R, Kanski M, Kopic S, Carlsson M, Engblom H, Aletras AH, Arheden H. Measuring extracellular volume fraction by MRI: First verification of values given by clinical sequences. Magn Reson Med 2019; 83:662-672. [PMID: 31418490 PMCID: PMC6900009 DOI: 10.1002/mrm.27938] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 07/15/2019] [Accepted: 07/16/2019] [Indexed: 12/12/2022]
Abstract
Purpose To verify MR measurements of myocardial extracellular volume fraction (ECV) based on clinically applicable T1‐mapping sequences against ECV measurements by radioisotope tracer in pigs and to relate the results to those obtained in volunteers. Methods Between May 2016 and March 2017, 8 volunteers (25 ± 4 years, 3 female) and 8 pigs (4 female) underwent ECV assessment with SASHA, MOLLI5(3b)3, MOLLI5(3s)3, and MOLLI5s(3s)3s. Myocardial ECV was measured independently in pigs using a radioisotope tracer method. Results In pigs, ECV in normal myocardium was not different between radioisotope (average ± standard deviation; 19 ± 2%) and SASHA (21 ± 2%; P = 0.086). ECV was higher by MOLLI5(3b)3 (26 ± 2%), MOLLI5(3s)3 (25 ± 2%), and MOLLI5s(3s)3s (25 ± 2%) compared with SASHA or radioisotope (P ≤ 0.001 for all). ECV in volunteers was higher by MOLLI5(3b)3 (26 ± 3%) and MOLLI5(3s)3 (26 ± 3%) than by SASHA (22 ± 3%; P = 0.022 and P = 0.033). No difference was found between MOLLI5s(3s)3s (25 ± 3%) and SASHA (P = 0.225). Native T1 of blood and myocardium as well as postcontrast T1 of myocardium was consistently lower using MOLLI compared with SASHA. ECV increased over time as measured by MOLLI5(3b)3 and MOLLI5(3s)3 for pigs (0.08% and 0.07%/min; P = 0.004 and P = 0.013) and by MOLLI5s(3s)3s for volunteers (0.07%/min; P = 0.032) but did not increase as measured by SASHA. Conclusion Clinically available MOLLI and SASHA techniques can be used to accurately estimate ECV in normal myocardium where MOLLI‐sequences show minor overestimation driven by underestimation of postcontrast T1 when compared with SASHA. The timing of imaging after contrast administration affected the measurement of ECV using some variants of the MOLLI sequence.
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Affiliation(s)
- David Nordlund
- Department of Clinical Physiology, Clinical Sciences, Lund University and Lund University Hospital, Lund, Sweden
| | - Christos Xanthis
- Department of Clinical Physiology, Clinical Sciences, Lund University and Lund University Hospital, Lund, Sweden.,Laboratory of Computing and Medical Informatics, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Sebastian Bidhult
- Department of Clinical Physiology, Clinical Sciences, Lund University and Lund University Hospital, Lund, Sweden.,Department of Biomedical Engineering, Faculty of Engineering, Lund University, Lund, Sweden
| | - Robert Jablonowski
- Department of Clinical Physiology, Clinical Sciences, Lund University and Lund University Hospital, Lund, Sweden
| | - Mikael Kanski
- Department of Clinical Physiology, Clinical Sciences, Lund University and Lund University Hospital, Lund, Sweden
| | - Sascha Kopic
- Department of Clinical Physiology, Clinical Sciences, Lund University and Lund University Hospital, Lund, Sweden
| | - Marcus Carlsson
- Department of Clinical Physiology, Clinical Sciences, Lund University and Lund University Hospital, Lund, Sweden
| | - Henrik Engblom
- Department of Clinical Physiology, Clinical Sciences, Lund University and Lund University Hospital, Lund, Sweden
| | - Anthony H Aletras
- Department of Clinical Physiology, Clinical Sciences, Lund University and Lund University Hospital, Lund, Sweden.,Laboratory of Computing and Medical Informatics, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Håkan Arheden
- Department of Clinical Physiology, Clinical Sciences, Lund University and Lund University Hospital, Lund, Sweden
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