摘要
本文报告国产９９ｍＴｃ—ＭＩＢＩ心肌灌注断层显像８０例与冠状动脉造影（ＣＡ）对照分析。结果表明：９９ｍＴｃ—ＭＩＢＩ心肌灌注断层显像对冠心病诊断的灵敏度９６．７％、特异性为７５％、准确性为９１．３％、阳性预测率９２．１％。对急性或陈旧性心肌梗塞、心绞痛及Ｘ综合症的心肌灌注显像阳性率分别是１００％、９３．９％和８３．３％。心肌灌注显像所示异常部位与ＣＡ检查冠状动脉供血区基本相符，有较可靠的定位准确性，心肌灌注显像放射性分布与冠状动脉狭窄程度亦有一定相关性。
Abstract The purpose of this study is to correlete diagnostic value of sensitivity and specificity of 99m TcMIBI SPECT myocardial Perfusion imaging with coronary angiogram. 80 patients were studied, using China made 99mTc-MIBI as imaging tracer. Take coronary stenosis≥50% as diagnostic criterion of coronary arterial disease(CAD),the results showed thst, the seasitivity of 99mTc-MIBI Perfusion imaging for diagnosis of CAD was 96. 7%, specificity was 75. 0%, and the positive predictive value for myocardial infarction, angina pectoris and X-syndrom were 100%,93. 9% and 83. 3% respectively. Abnomalities of 99mTc-MIBI imaging were correlated with coronary arterial perfusion areas, which angiogram shown. This study suggested that, 99mTc-MIBI SPECT myocardial perfusion imaging be as reliable and accurate as coronary angiography for detection of CAD, and more convenient than coronary angiography.
