比较６９例冠心病患者多巴酚丁胺负荷９９ｍＴｃ甲氧基异丁基异腈（ＭＩＢＩ）心肌断层显像与８２例运动试验９９ｍＴｃＭＩＢＩ心肌断层显像的结果，以探讨它们对冠心病的诊断价值。结果表明：以冠状动脉造影结果为标准，多巴酚丁胺负荷诊断冠心病的敏感性和特异性分别为９１２％和８００％，运动试验分别为８９４％和８２９％。多巴酚丁胺负荷检出冠状动脉病变的敏感性和特异性：左前降支为７８１％和９１３％，回旋支为６６７％和９８２％，右冠状动脉为１００％和８３７％；运动试验分别为７８３％和９１１％，６００％和９６８％，９０９％和８５０％，差异均无显著性（Ｐ＞００５）。提示两者结果相近，对于不能进行运动试验的病人，多巴酚丁胺试验是一种有价值的诊断冠心病的方法。 To compare the results of 99mTc-methoxyisobutyl isonitrile (MIBI) myocardial perfusion imaging and 99mTc-MIBI myocardial perfusion imaging in 69 patients with coronary heart disease with dobutamine stress test to investigate their diagnosis of coronary heart disease value. The results showed that the sensitivity and specificity of dobutamine stress to diagnose coronary heart disease were 912% and 800%, respectively, and the exercise tests were 894% and 829, respectively, based on the results of coronary angiography. %. Sensitivity and specificity of dobutamine stress in detecting coronary artery lesions: left anterior descending artery was 781% and 913%, the circumflex artery was 667% and 982%, the right coronary artery was 100 % And 837% respectively. There was no significant difference in exercise test between the two groups (783% and 911%, 600% and 968%, 909% and 850%, respectively) 05). Suggesting that the two results are similar, for patients who can not exercise test, dobutamine test is a valuable method of diagnosis of coronary heart disease.