缺血性心肌病是由于心肌长期缺血缺氧,使心肌变性坏死和纤维疤痕组织形成,心室壁被大量增生的纤维结缔组织所代替,心肌的收缩力减退和心室的顺应性下降,加之心室负荷,最终心脏呈普遍性扩大,出现充血性心力衰竭～[1].临床表现酷似扩张型心肌病,临床及超声心动图有时鉴别二者较困难.本文应用平衡法核素心血地显像对左室功能进行定量分析,以探讨核素心血池显像对二病的鉴别价值. Ischemic cardiomyopathy is due to long-term myocardial ischemia and hypoxia, myocardial necrosis and fibrous scar tissue formation, ventricular wall was hyperplasia of fibrous connective tissue replaced by myocardial contractility and ventricular compliance decreased, combined with ventricular Load, the final heart was generally enlarged, congestive heart failure ~ [1] clinical manifestations resembled dilated cardiomyopathy, clinical and echocardiography sometimes more difficult to identify the two.In this study, Left ventricular function quantitative analysis of radionuclide imaging to explore the differential diagnosis of two diseases.