目的分析不同程度冠状动脉狭窄患者应用64层螺旋CT诊断的临床价值。方法选取60例疑似冠心病患者作为研究对象,分别采用64层螺旋CT和常规冠状动脉造影进行诊断,观察64层螺旋CT诊断结果的正确率、特异性、敏感度、阳性预测值、阴性预测值。结果在轻度狭窄程度的诊断上,64层螺旋CT诊断漏诊4个;在中度狭窄程度的诊断上,64层螺旋CT诊断漏诊7个;在重度狭窄程度的诊断上,64层螺旋CT诊断多诊2个。64层螺旋CT在诊断轻度狭窄的敏感性为85.7%、特异性为96.7%、阳性预测值为89.1%、阴性预测值为94.8%;在诊断中度狭窄的敏感性为87.4%、特异性为97.8%、阳性预测值为91.8%、阴性预测值为97.8%;在诊断重度狭窄的敏感性为96.9%、特异性为99.0%、阳性预测值为94.1%、阴性预测值为96.9%。结论应用64层螺旋CT诊断不同程度冠状动脉狭窄患者,其诊断正确率、特异性、敏感度及阳性阴性预测值都非常高,具有重要的临床价值。 Objective To analyze the clinical value of 64-slice spiral CT in the diagnosis of patients with coronary artery stenosis. Methods Totally 60 patients with suspected coronary heart disease were selected as subjects for diagnosis by 64-slice spiral CT and routine coronary angiography. The diagnostic accuracy, specificity, sensitivity, positive predictive value and negative predictive value of 64-slice spiral CT were observed. . Results In the diagnosis of mild degree of stenosis, the 64-slice spiral CT diagnosis missed 4; in the diagnosis of moderate stenosis, the 64-slice spiral CT diagnosis missed 7; in the diagnosis of severe stenosis, 64-slice spiral CT diagnosis Multi-diagnosis 2. The sensitivity, specificity, and specificity of 64-slice spiral CT were 85.7%, 96.7%, 89.1%, and 94.8%, respectively. The sensitivity and specificity of 64-slice spiral CT were 87.4% and 87.4% The positive predictive value was 97.8%. The positive predictive value was 91.8%. The negative predictive value was 97.8%. The sensitivity and specificity of the diagnosis of severe stenosis were 96.9% and 99.0% respectively. The positive predictive value was 94.1% and negative predictive value was 96.9%. Conclusion The diagnostic accuracy, specificity, sensitivity and negative predictive value of 64-slice spiral CT in patients with different degrees of coronary artery stenosis are both very high and have important clinical value.