PMID- 29328539 OWN - NLM STAT- MEDLINE DCOM- 20190916 LR - 20190916 IS - 1522-2586 (Electronic) IS - 1053-1807 (Linking) VI - 48 IP - 2 DP - 2018 Aug TI - Early detection of myocardial involvement by T(1) mapping of cardiac MRI in idiopathic inflammatory myopathy. PG - 415-422 LID - 10.1002/jmri.25945 [doi] AB - BACKGROUND: Polymyositis (PM) and dermatomyositis (DM) are common types of idiopathic inflammatory myopathy (IIM), wherein patients are prone to adverse cardiovascular events. PURPOSE: To explore the value of cardiac magnetic resonance imaging (MRI) for detecting cardiac involvement in PM/DM patients using a T(1) mapping technique. STUDY TYPE: Prospective observational study. POPULATION: In all, 25 PM/DM patients free of cardiovascular symptoms and preserved ventricular systolic function and 25 healthy volunteers matched for age and sex served as controls. FIELD STRENGTH/SEQUENCE: Cardiac MRI at 3T, including steady-state free precession (SSFP) cine imaging, late gadolinium enhancement (LGE), and T(1) mapping with modified Look-Locker inversion recovery (MOLLI). ASSESSMENT: Myocardial native T(1) and extracellular volume (ECV) of the left ventricle as well as the correlations with disease activity were analyzed. STATISTICAL TESTS: Independent sample's t-test, Fisher's exact test, or chi-square test, Pearson's correlation (r) were applied. P