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摘要目的对比分析已有的功能指标和基于标准心血管MR影像的2个新增功能指标在非缺血性扩张型心肌病(NIDCM)中的诊断和预测价值。材料与方法本研究获得伦理委员会批准。回顾性分析2005—2013年间行MR检查的453例NIDCM病人及150名健康对照者资料。心肌收缩分数(MCF)等于左心室(LV)每搏输出量除以LV心肌容积;在收缩末期及舒张末期分别测量心尖部心外膜下至二尖瓣2
Abstract Objective To compare and analyze the diagnostic value of two existing functional indexes and two new functional indexes based on standard cardiovascular MR images in non-ischemic dilated cardiomyopathy (NIDCM). Materials and Methods This study was approved by Ethics Committee. Data of 453 NIDCM patients and 150 healthy controls who underwent MR examination between 2005 and 2013 were retrospectively analyzed. Myocardial systolic fraction (MCF) was equal to left ventricular (LV) stroke volume divided by LV myocardial volume; at the end of systole and end-diastole were measured apical subepithelial to mitral valve 2