PMID- 27198892 OWN - NLM STAT- MEDLINE DCOM- 20170424 LR - 20220410 IS - 1875-8312 (Electronic) IS - 1569-5794 (Linking) VI - 32 IP - 8 DP - 2016 Aug TI - Quantitative diffusion-weighted magnetic resonance imaging in the assessment of myocardial fibrosis in hypertrophic cardiomyopathy compared with T1 mapping. PG - 1289-97 LID - 10.1007/s10554-016-0909-x [doi] AB - To identify myocardial fibrosis in hypertrophic cardiomyopathy (HCM) subjects using quantitative cardiac diffusion-weighted imaging (DWI) and to compare its performance with native T1 mapping and extracellular volume (ECV). Thirty-eight HCM subjects (mean age, 53 +/- 9 years) and 14 normal controls (mean age, 51 +/- 8 years) underwent cardiac magnetic resonance imaging (CMRI) on a 3.0T magnetic resonance (MR) machine with DWI, T1 mapping and late gadolinium enhancement (LGE) imaging as the reference standard. The mean apparent diffusion coefficient (ADC), native T1 value and ECV were determined for each subject. Overall, the HCM subjects exhibited an increased native T1 value (1241.04 +/- 78.50 ms), ECV (0.31 +/- 0.03) and ADC (2.36 +/- 0.34 s/mm(2)) compared with the normal controls (1114.60 +/- 37.99 ms, 0.24 +/- 0.04, and 1.62 +/- 0.38 s/mm(2), respectively) (p < 0.05). DWI differentiated healthy and fibrotic myocardia with an area under the curve (AUC) of 0.93, while the AUCs of the native T1 values (0.93), (p > 0.05) and ECV (0.94), (p > 0.05) exhibited an equal differentiation ability. Both HCM LGE+ and HCM LGE- subjects had an increased native T1 value, ECV and ADC compared to the normal controls (p < 0.05). HCM LGE+ subjects exhibited an increased ECV (0.31 +/- 0.04) and ADC (2.43 +/- 0.36 s/mm(2)) compared to HCM LGE- subjects (p < 0.05). HCM LGE+ and HCM LGE- subjects had similar native T1 values (1250 +/- 76.36 ms vs. 1213.98 +/- 92.30 ms, respectively) (p > 0.05). ADC values were linearly associated with increased ECV (R(2) = 0.36) and native T1 values (R(2) = 0.40) among all subjects. DWI is a feasible alternative to native T1 mapping and ECV for the identification of myocardial fibrosis in patients with HCM. DWI and ECV can quantitatively characterize the extent of fibrosis in HCM LGE+ and HCM LGE- patients. FAU - Wu, Lian-Ming AU - Wu LM AD - Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China. FAU - Chen, Bing-Hua AU - Chen BH AD - Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China. FAU - Yao, Qiu-Ying AU - Yao QY AD - Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China. FAU - Ou, Yang-Rongzheng AU - Ou YR AD - Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China. FAU - Wu, Rui AU - Wu R AD - Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China. FAU - Jiang, Meng AU - Jiang M AD - Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China. FAU - Hu, Jiani AU - Hu J AD - Department of Radiology, Wayne State University, Detroit, MI, USA. FAU - An, Dong-Aolei AU - An DA AD - Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China. FAU - Xu, Jian-Rong AU - Xu JR AD - Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China. xujianr@yeah.net. LA - eng PT - Comparative Study PT - Journal Article DEP - 20160519 PL - United States TA - Int J Cardiovasc Imaging JT - The international journal of cardiovascular imaging JID - 100969716 RN - 0 (Contrast Media) RN - K2I13DR72L (Gadolinium DTPA) SB - IM MH - Adult MH - Area Under Curve MH - Cardiomyopathy, Hypertrophic/*diagnostic imaging/pathology MH - Case-Control Studies MH - Contrast Media/administration & dosage MH - *Diffusion Magnetic Resonance Imaging MH - Female MH - Fibrosis MH - Gadolinium DTPA/administration & dosage MH - Humans MH - *Magnetic Resonance Imaging, Cine MH - Male MH - Middle Aged MH - Myocardium/*pathology MH - Observer Variation MH - Predictive Value of Tests MH - ROC Curve MH - Reproducibility of Results MH - Severity of Illness Index OTO - NOTNLM OT - DWI OT - ECV OT - Hypertrophic cardiomyopathy OT - Late gadolinium enhanced imaging OT - Native T1 EDAT- 2016/05/21 06:00 MHDA- 2017/04/25 06:00 CRDT- 2016/05/21 06:00 PHST- 2016/02/19 00:00 [received] PHST- 2016/05/05 00:00 [accepted] PHST- 2016/05/21 06:00 [entrez] PHST- 2016/05/21 06:00 [pubmed] PHST- 2017/04/25 06:00 [medline] AID - 10.1007/s10554-016-0909-x [pii] AID - 10.1007/s10554-016-0909-x [doi] PST - ppublish SO - Int J Cardiovasc Imaging. 2016 Aug;32(8):1289-97. doi: 10.1007/s10554-016-0909-x. Epub 2016 May 19.