PMID- 30775414 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220331 IS - 2352-0477 (Print) IS - 2352-0477 (Electronic) IS - 2352-0477 (Linking) VI - 6 DP - 2019 TI - Cardiovascular magnetic resonance T2* mapping for structural alterations in hypertrophic cardiomyopathy. PG - 78-84 LID - 10.1016/j.ejro.2019.01.007 [doi] AB - PURPOSE: Hypertrophic cardiomyopathy (HCM) is characterized by a heterogeneous morphology and variable prognosis. A mismatch between left ventricular mass (LVM) and microvascular circulation with corresponding relative ischemia has been implicated to cause myocardial replacement fibrosis that deteriorates prognosis. Besides parametric T1 mapping, Cardiovascular Magnetic Resonance (CMR) T2* mapping is able to identify ischemia as well as fibrosis in cardiac and extracardiac diseases. Therefore, we aimed to investigate the value of T2* mapping to characterize structural alterations in patients with HCM. METHODS: CMR was performed on a 1.5 T MR imaging system (Achieva, Philips, Best, Netherlands) using a 5-channel coil in patients with HCM (n = 103, 50.6 +/- 16.4 years) and in age- and gender-matched controls (n = 20, 44.8 +/- 16.9 years). T2* mapping (1 midventricular short axis slice) was acquired in addition to late gadolinium enhancement (LGE). T2* values were compared between patients with HCM and controls as well as between HCM patients with- and without fibrosis. RESULTS: HCM patients showed significantly decreased T2* values compared to controls (26.2 +/- 4.6 vs. 31.3 +/- 4.3 ms, p < 0.001). Especially patients with myocardial fibrosis presented with decreased T2* values in comparison to those without fibrosis (25.2 +/- 4.0 vs. 28.7 +/- 5.3 ms, p = 0.003). A regression model including maximum wall thickness, LVM and T2* values provided good overall diagnostic accuracy of 80% to diagnose HCM with and without fibrosis. CONCLUSION: In this study, parametric mapping identified lower T2* values in HCM patients compared to controls, especially in a sub-group of patients with myocardial fibrosis. As myocardial fibrosis has been suggested to influence prognosis of patients with HCM, T2* mapping may add information for identifying a higher risk sub-group of HCM patients. FAU - Gastl, Mareike AU - Gastl M AD - Department of Cardiology, University Heart Center, University Hospital Zurich, Raemistrasse 100, 8091, Zurich, Switzerland. AD - Institute for Biomedical Engineering, University and ETH Zurich Gloriastrasse 35, 8092 Zurich, Switzerland. AD - Dept. Cardiology, Pneumology and Angiology, Heinrich Heine University, Dusseldorf, Germany. FAU - Gotschy, Alexander AU - Gotschy A AD - Department of Cardiology, University Heart Center, University Hospital Zurich, Raemistrasse 100, 8091, Zurich, Switzerland. AD - Institute for Biomedical Engineering, University and ETH Zurich Gloriastrasse 35, 8092 Zurich, Switzerland. FAU - von Spiczak, Jochen AU - von Spiczak J AD - Institute of Diagnostic and Interventional Radiology, University Hospital Zurich, Raemistrasse 100, 8091, Zurich, Switzerland. FAU - Polacin, Malgorzata AU - Polacin M AD - Institute of Diagnostic and Interventional Radiology, University Hospital Zurich, Raemistrasse 100, 8091, Zurich, Switzerland. FAU - Bonner, Florian AU - Bonner F AD - Dept. Cardiology, Pneumology and Angiology, Heinrich Heine University, Dusseldorf, Germany. FAU - Gruner, Christiane AU - Gruner C AD - Department of Cardiology, University Heart Center, University Hospital Zurich, Raemistrasse 100, 8091, Zurich, Switzerland. FAU - Kelm, Malte AU - Kelm M AD - Dept. Cardiology, Pneumology and Angiology, Heinrich Heine University, Dusseldorf, Germany. FAU - Ruschitzka, Frank AU - Ruschitzka F AD - Department of Cardiology, University Heart Center, University Hospital Zurich, Raemistrasse 100, 8091, Zurich, Switzerland. FAU - Alkadhi, Hatem AU - Alkadhi H AD - Institute of Diagnostic and Interventional Radiology, University Hospital Zurich, Raemistrasse 100, 8091, Zurich, Switzerland. FAU - Kozerke, Sebastian AU - Kozerke S AD - Institute for Biomedical Engineering, University and ETH Zurich Gloriastrasse 35, 8092 Zurich, Switzerland. FAU - Manka, Robert AU - Manka R AD - Department of Cardiology, University Heart Center, University Hospital Zurich, Raemistrasse 100, 8091, Zurich, Switzerland. AD - Institute for Biomedical Engineering, University and ETH Zurich Gloriastrasse 35, 8092 Zurich, Switzerland. AD - Institute of Diagnostic and Interventional Radiology, University Hospital Zurich, Raemistrasse 100, 8091, Zurich, Switzerland. LA - eng PT - Journal Article DEP - 20190204 PL - England TA - Eur J Radiol Open JT - European journal of radiology open JID - 101650225 EIN - Eur J Radiol Open. 2020 Dec 17;8:100308. PMID: 33364261 PMC - PMC6365365 OTO - NOTNLM OT - CMR OT - Fibrosis OT - Hypertrophic cardiomyopathy OT - T2* mapping EDAT- 2019/02/19 06:00 MHDA- 2019/02/19 06:01 PMCR- 2019/02/04 CRDT- 2019/02/19 06:00 PHST- 2019/01/16 00:00 [received] PHST- 2019/01/29 00:00 [accepted] PHST- 2019/02/19 06:00 [entrez] PHST- 2019/02/19 06:00 [pubmed] PHST- 2019/02/19 06:01 [medline] PHST- 2019/02/04 00:00 [pmc-release] AID - S2352-0477(19)30006-1 [pii] AID - 10.1016/j.ejro.2019.01.007 [doi] PST - epublish SO - Eur J Radiol Open. 2019 Feb 4;6:78-84. doi: 10.1016/j.ejro.2019.01.007. eCollection 2019.