了解冠心病人心肌存活情况对冠心病的治疗及预后均有重要价值。本研究对18例冠心病人舌下含化硝酸甘油前后进行心肌灌注断层显像,并做定量分析,探讨其判断存活心肌的价值。资料与方法 1.急性心肌梗塞组(Ⅰ组):9例,男7例,女2例。年龄60±7(45～70)岁。心肌梗塞史小于6周,均有心肌梗塞后心绞痛发作病史,心绞痛发作时ECG ST段抬高≥1.5mV。 2.陈旧性心肌梗塞组(Ⅱ组):9例,男6例,女3例,年龄 To understand the survival of coronary heart disease in patients with coronary heart disease and prognosis are of great value. In this study, myocardial perfusion imaging was performed before and after sublingual nitroglycerin in 18 patients with coronary heart disease, and quantitative analysis was performed to evaluate the value of myocardial perfusion in determining myocardial viability. Materials and Methods 1. Acute myocardial infarction group (group Ⅰ): 9 cases, 7 males and 2 females. Age 60 ± 7 (45 ~ 70) years old. History of myocardial infarction less than 6 weeks, have a history of post-myocardial infarction angina pectoris, angina pectoris ECG ST segment elevation ≥ 1.5mV. 2. Old myocardial infarction group (Ⅱ group): 9 cases, 6 males and 3 females, age