PMID- 26003194 OWN - NLM STAT- MEDLINE DCOM- 20160216 LR - 20181202 IS - 1872-7727 (Electronic) IS - 0720-048X (Linking) VI - 84 IP - 8 DP - 2015 Aug TI - Hypertrophic cardiomyopathy: Cardiac structural and microvascular abnormalities as evaluated with multi-parametric MRI. PG - 1480-1486 LID - S0720-048X(15)00228-4 [pii] LID - 10.1016/j.ejrad.2015.04.028 [doi] AB - PURPOSE: To determine the relationship between myocardial structural and microvascular abnormality in hypertrophic cardiomyopathy (HCM) by multi-parametric cardiac MRI. MATERIALS AND METHODS: Twenty-four HCM and eighteen controls were retrospectively included. Left ventricle mass (LVM), LV end-systolic and end-diastolic volume (LVESV, LVEDV), LV ejection fraction (LVEF), and 16-segment wall thickness at ES and ED (SESWT, SEDWT) were assessed with a 2D cine-MRI. Myocardial perfusion (reflected by K(trans)), interstitial volume (Ve) and mean transmit time (MTT) were evaluated with a model-dependent dynamic contrast-enhanced MRI. Myocardial fibrosis was assessed with late gadolinium enhancement (LGE) imaging. RESULTS: K(trans) was significantly decreased in LGE-present (0.74+/-0.15mL/g/min) against LGE-absent (0.55+/-0.14mL/g/min, p=0.030) and normal group (0.81+/-0.32mL/g/min, p<0.001), but was unchanged in LGE-absent against normal group (p>0.05). Ve and MTT were significantly increased in LGE-present (Ve: 26.7+/-15.7%; MTT: 28.6+/-21.3s) against LGE-absent (37.6+/-18.3%; 49.8+/-30.5s) and normal group (19.7+/-6.9%; 15.1+/-3.9s; all p<0.001), and were significantly increased in LGE-absent against normal group (p<0.001). LGE significantly correlated to K(trans), Ve, MTT, and SESWT (rho=0.232, -0.247, -0.443, and -0.207, respectively). K(trans) negatively correlated to SEDWT and SESWT (rho=-0.224 and -0.231). Ve and MTT positively correlated to SEDWT (Ve: rho=0.223; MTT: rho=0.239) and SESWT (Ve: rho=0.248; MTT: rho=0.254). CONCLUSIONS: Consistent relationship was determined between myocardial structural abnormality and microvascular dysfunction in HCM. CI - Copyright (c) 2015 Elsevier Ireland Ltd. All rights reserved. FAU - Zhang, Yu-Dong AU - Zhang YD AD - Department of Radiology, the First Affiliated Hospital with Nanjing Medical University, China. Electronic address: njmu_zyd@163.com. FAU - Li, Meijiao AU - Li M AD - Department of Radiology, Peking University First Hospital, China. Electronic address: newgljyk@163.com. FAU - Qi, Liang AU - Qi L AD - Department of Radiology, the First Affiliated Hospital with Nanjing Medical University, China. Electronic address: qiliang1120@126.com. FAU - Wu, Chen-Jiang AU - Wu CJ AD - Department of Radiology, the First Affiliated Hospital with Nanjing Medical University, China. Electronic address: njmu_wcj@163.com. FAU - Wang, Xiaoying AU - Wang X AD - Department of Radiology, Peking University First Hospital, China. Electronic address: cjr.wangxiaoying@vip.163.com. LA - eng PT - Journal Article DEP - 20150513 PL - Ireland TA - Eur J Radiol JT - European journal of radiology JID - 8106411 RN - 0 (Contrast Media) RN - K2I13DR72L (Gadolinium DTPA) SB - IM MH - Adolescent MH - Adult MH - Cardiomyopathy, Hypertrophic/*complications/*pathology MH - Contrast Media MH - Coronary Vessel Anomalies/*complications MH - Female MH - Gadolinium DTPA MH - Humans MH - Image Enhancement/methods MH - Magnetic Resonance Imaging/*methods MH - Male MH - Microvessels/*abnormalities MH - Middle Aged MH - Myocardium/*pathology MH - Retrospective Studies MH - Young Adult OTO - NOTNLM OT - Cardiac MRI OT - Hypertrophic cardiomyopathy OT - Microvascular dysfunction OT - Myocardial perfusion OT - Structural abnormality EDAT- 2015/05/25 06:00 MHDA- 2016/02/18 06:00 CRDT- 2015/05/25 06:00 PHST- 2015/01/15 00:00 [received] PHST- 2015/03/28 00:00 [revised] PHST- 2015/04/27 00:00 [accepted] PHST- 2015/05/25 06:00 [entrez] PHST- 2015/05/25 06:00 [pubmed] PHST- 2016/02/18 06:00 [medline] AID - S0720-048X(15)00228-4 [pii] AID - 10.1016/j.ejrad.2015.04.028 [doi] PST - ppublish SO - Eur J Radiol. 2015 Aug;84(8):1480-1486. doi: 10.1016/j.ejrad.2015.04.028. Epub 2015 May 13.