PMID- 27997439 OWN - NLM STAT- MEDLINE DCOM- 20170809 LR - 20170809 IS - 1532-3145 (Electronic) IS - 0363-8715 (Linking) VI - 41 IP - 4 DP - 2017 Jul/Aug TI - Structural and Functional Correlates of Myocardial T1 Mapping in 321 Patients With Hypertrophic Cardiomyopathy. PG - 653-660 LID - 10.1097/RCT.0000000000000564 [doi] AB - OBJECTIVE: The aim of this study was to evaluate the structural and functional correlates of T1 mapping in 321 patients with hypertrophic cardiomyopathy (HCM). METHODS: Three hundred twenty-one patients with HCM who underwent cardiac magnetic resonance from 2003 to 2013 were retrospectively identified from our institution's HCM registry. Left ventricular volume, function, late gadolinium enhancement (LGE), and Look-Locker T1 time were quantified. T1 time was normalized to blood pool to calculate T1 ratio. Correlations between LGE%, T1 ratio, and structural and functional features were performed using Pearson correlation coefficient. RESULTS: Late gadolinium enhancement showed stronger correlation with left ventricular mass index (r = 0.41, P < 0.001) compared with T1 ratio (r = -0.17, P = 0.004). Both LGE% and T1 ratio correlated with ejection fraction (r = -0.18 and P = 0.002 vs r = 0.21 and P < 0.001, respectively). E/e' showed correlation with LGE% but not with T1 ratio. CONCLUSIONS: Late gadolinium enhancement was more strongly correlated with the phenotypic expression of HCM compared with T1 ratio. FAU - Chu, Linda C AU - Chu LC AD - From the *Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine and Departments of daggerPathology and double daggerCardiology, Johns Hopkins University School of Medicine, Baltimore, MD; section signDivision of Image Processing, Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands; and parallelRadiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD. FAU - Corona-Villalobos, Celia P AU - Corona-Villalobos CP FAU - Halushka, Marc K AU - Halushka MK FAU - Zhang, Yan AU - Zhang Y FAU - Pozzessere, Chiara AU - Pozzessere C FAU - Kamel, Ihab R AU - Kamel IR FAU - Pozios, Iraklis AU - Pozios I FAU - Van Der Geest, Rob J AU - Van Der Geest RJ FAU - Gai, Neville AU - Gai N FAU - Abraham, Roselle M AU - Abraham RM FAU - Abraham, Theodore P AU - Abraham TP FAU - Bluemke, David A AU - Bluemke DA FAU - Zimmerman, Stefan L AU - Zimmerman SL LA - eng PT - Journal Article PL - United States TA - J Comput Assist Tomogr JT - Journal of computer assisted tomography JID - 7703942 RN - 0 (Contrast Media) RN - K2I13DR72L (Gadolinium DTPA) SB - IM MH - Adolescent MH - Adult MH - Aged MH - Aged, 80 and over MH - Cardiomyopathy, Hypertrophic/*diagnostic imaging/*physiopathology MH - Child MH - *Contrast Media MH - Female MH - Gadolinium DTPA MH - Heart/diagnostic imaging/physiopathology MH - Humans MH - *Image Enhancement MH - *Magnetic Resonance Imaging MH - Male MH - Middle Aged MH - Retrospective Studies MH - Young Adult EDAT- 2016/12/21 06:00 MHDA- 2017/08/10 06:00 CRDT- 2016/12/21 06:00 PHST- 2016/12/21 06:00 [pubmed] PHST- 2017/08/10 06:00 [medline] PHST- 2016/12/21 06:00 [entrez] AID - 10.1097/RCT.0000000000000564 [doi] PST - ppublish SO - J Comput Assist Tomogr. 2017 Jul/Aug;41(4):653-660. doi: 10.1097/RCT.0000000000000564.