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目的:以传统冠状动脉造影(CAG)为参照,对比活动平板试验(TET)、64排双源螺旋CT(DSCT)与核素心肌显像(MPI)诊断冠心病的准确性。方法:对70例疑诊冠心病患者分别进行TET、DSCT、MPI、CAG检查,以CAG为金标准,评价TET、DSCT、MPI对冠状动脉明显狭窄的诊断情况。结果:按照冠状动脉造影中冠状动脉狭窄≥50%为标准,确诊为冠心病;TET、DSCT及MPI验诊断冠心病的敏感性、特异性、阳性预测值、阴性预测值及诊断符合率分别为73.77%、55.56%、91.83%、23.80%、71.43%;84.67%、94.57%、78.38%、96.37%、92.70%;85.25%、78.78%、96.29%、43.75%、84.29%。结论:DSCT与MPI作为诊断冠心病的无创方法,检出冠心病的准确程度高,结果可靠。
OBJECTIVE: To compare the diagnostic accuracy of coronary artery disease (CAD) with traditional coronary angiography (CAG) in comparison with treadmill exercise test (TET), 64-slice double-source spiral computed tomography (DSCT) and radionuclide myocardial imaging (MPI) Methods: TET, DSCT, MPI and CAG were examined in 70 patients with suspected coronary artery disease. The diagnosis of obvious stenosis of coronary artery was evaluated by TET, DSCT and MPI with CAG as the gold standard. Results: Coronary heart disease was diagnosed according to coronary artery stenosis ≥50% in coronary angiography. The sensitivity, specificity, positive predictive value, negative predictive value and diagnostic coincidence rate of TET, DSCT and MPI were 73.77%, 55.56%, 91.83%, 23.80%, 71.43%, 84.67%, 94.57%, 78.38%, 96.37%, 92.70%, 85.25%, 78.78%, 96.29%, 43.75%, 84.29%. Conclusion: As a noninvasive method to diagnose coronary heart disease, DSCT and MPI have high accuracy and reliable results in detecting coronary heart disease.