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为评价核素心肌灌注显像对冠心病诊断的价值，并用其判断血运重建术的疗效，对 ７２ 例冠心病或可疑冠心病患者行冠脉造影术与核素心肌灌注显像，并对其中１５ 例患者在血运重建术后复查心肌灌注显像。结果表明核素心肌显像诊断冠心病的灵敏度与特异性分别为９５％ 与 ８６％ ；血运重建术后平均缺血节段数无明显改变，平均缺血分数显著降低。结论：①核素心肌显像对冠心病诊断的灵敏度与特异性均很高；②血运重建术后，原缺血心肌供血明显改善。
To evaluate the value of myocardial perfusion imaging in the diagnosis of coronary heart disease, and to determine the efficacy of revascularization, coronary angiography and myocardial perfusion imaging were performed in 72 patients with coronary heart disease or suspected coronary artery disease. Fifteen of these patients underwent myocardial perfusion imaging after revascularization. The results showed that the sensitivity and specificity of radionuclide myocardial imaging in the diagnosis of coronary heart disease were 95% and 86% respectively. No significant changes were found in the average ischemic segments after revascularization, and the average ischemic fraction was significantly lower. Conclusions: ① The sensitivity and specificity of radionuclide myocardial imaging in the diagnosis of coronary heart disease are very high. ② The blood supply of ischemic myocardium is significantly improved after revascularization.