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目的探究64层螺旋CT诊断不同程度冠状动脉狭窄的临床价值。方法选取2014年10月—2015年9月收治的疑似冠心病的患者68例,所有患者均进行64层螺旋CT及常规冠状动脉造影检查。观察两种检查方法结果的一致性及64层螺旋CT诊断不同程度冠状动脉狭窄的准确率、敏感度合特异性。结果 64层螺旋CT正确诊断冠状动脉狭窄62例,错误诊断6例,与常规冠状动脉造影结果进行Kappa检验后,一致性较高(k=0.79,P<0.05);轻度的准确率为98.53%、敏感性为96.88%、特异性为100%;中度的准确率为95.59%、敏感性为81.81%、特异性为96.49%;重度的准确率为92.65%、敏感性为82.35%、特异性为96.08%;闭塞的准确率为95.59%、敏感性为100%、特异性为95%。结论 64层螺旋CT诊断不同程度冠状动脉狭窄的准确率、敏感性和特异性均比较高,值得推广应用。
Objective To explore the clinical value of 64-slice spiral CT in the diagnosis of coronary artery stenosis. Methods Sixty-eight patients with suspected coronary heart disease were selected from October 2014 to September 2015. All patients underwent 64-slice spiral CT and conventional coronary angiography. Observed the consistency of the results of the two inspection methods and 64-slice spiral CT diagnostic accuracy of different degrees of coronary artery stenosis, sensitivity and specificity. Results Sixty-four cases of coronary artery stenosis were correctly diagnosed by 64-slice spiral CT, and 6 cases were wrongly diagnosed. Kappa test was used to evaluate the accuracy of coronary angiography (k = 0.79, P <0.05). The mild accuracy was 98.53 %, Sensitivity was 96.88%, specificity was 100%; moderate accuracy was 95.59%, sensitivity was 81.81%, specificity was 96.49%; severe accuracy was 92.65%, sensitivity was 82.35%, specificity The sex was 96.08%; the accuracy of occlusion was 95.59%, the sensitivity was 100% and the specificity was 95%. Conclusion The accuracy, sensitivity and specificity of 64-slice spiral CT in diagnosis of coronary artery stenosis with different degrees are high and worthy of popularization and application.