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目的 为评价 201 铊 (201T1)心肌灌注单光子发射计算机断层 (SPECT)仪显象对冠心病诊断的价值 ,并用其判断血运重建术的疗效。方法 对86例冠心病或可疑冠心病患者行冠状动脉造影术与 201T1心肌灌注SPECT显象 ,并对其中18例患者在血运重建术后复查 201T1心肌灌注SPECT显象。 结果 201T1心肌灌注SPECT显象诊断冠心病的灵敏度与特异性分别为93.8 %与90.0% ;血运重建术后平均缺血节段无明显改变 (P>0.05) ,但平均缺血分数显著降低 (P<0.001)。结论201T1心肌灌注SPECT显象对冠心病诊断的灵敏度与特异性均很高 ;可用于评估血运重建术后原缺血心肌的供血情况
Objective To evaluate the diagnostic value of 201 thallus (201T1) myocardial perfusion single photon emission computed tomography (SPECT) imaging in the diagnosis of coronary heart disease (CHD) and to evaluate its efficacy in revascularization. Methods 86 patients with coronary heart disease or suspected coronary heart disease underwent coronary angiography and 201T1 myocardial perfusion SPECT imaging, and 18 patients were reviewed 201T1 myocardial perfusion SPECT imaging after revascularization. Results The sensitivity and specificity of 201T1 myocardial perfusion SPECT imaging in diagnosis of coronary heart disease were 93.8% and 90.0% respectively. There was no significant change in mean ischemic segments after revascularization (P> 0.05), but the average ischemic fraction was significantly lower P <0.001). Conclusion 201T1 myocardial perfusion SPECT imaging diagnosis of coronary heart disease sensitivity and specificity are high; can be used to assess the blood supply of ischemic myocardium after revascularization