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对56例连续接受选择性冠状动脉造影患者作銣-81心肌灌注闪烁摄影与活动平板心电图检查,以便估计这些试验对明显的缺血和冠状动脉狭窄的诊断能力。病者进行分级活动平板运动试验,用改良V5导联监测,抵达运动终点时,静脉注入2毫居里铷-81,在6～8分钟的恢复期后以r闪烁照相机摄取前位与左前斜位显象。由二人对每项检查结果单独作出判断,然后与冠状动脉造影进行比较。结果表明,心肌灌注闪烁摄影比心电图运动试验有更高的敏感性(0.91对0.79)和特异性(0.91对0.64),心肌灌注的特异性差异显著(P<0.05)。心肌灌注显象出现
Rubidium-81 myocardial perfusion scintigraphy and mobile plate electrocardiography were performed on 56 consecutive patients undergoing selective coronary angiography in order to assess the diagnostic ability of these tests for significant ischemia and coronary artery stenosis. Patients were scored for their treadmill exercise and were monitored with a modified V5 lead. When arriving at the end of the exercise, 2 millidarres of rubidium-81 was infused intravenously, followed by an r-blinking camera for recovery of the anterior and left anterior oblique Bit imaging. The results of each test by the two separate judgments, and then compared with coronary angiography. The results showed that the myocardial perfusion scintigraphy had higher sensitivity (0.91 vs 0.79) and specificity (0.91 vs 0.64) than myocardial electrocardiography test, and the specificity of myocardial perfusion was significantly different (P <0.05). Myocardial perfusion imaging appears