心脏CT一站式检查结合CTA对冠心病的诊断价值

目的探讨心脏CT一站式检查结合CT血管成像技术(CTA)对冠心病的诊断价值。方法选取2017年1月~2019年1月期间我院拟诊或确诊为冠心病的患者68例为研究对象。均于我院完成冠状动脉CTA检查,并在2周内于外院行冠状动脉造影(CAG),观察和分析CTA图像,以CAG检查结果为"金标准"评估CTA对冠心病及冠状动脉病变的诊断价值。结果CTA诊断冠心病的灵敏度为96.15%,特异度为81.25%,准确率为92.65%,阳性预测值为94.34%,阴性预测值为86.67%,Kappa值为0.79,一致性较高;CTA对冠脉主要分支病变的诊断效能,灵敏度比较:LAD>LCX>LM=RCA,特异度比较:RCA>LAD>LCX>LM,准确率比较:LAD>LCX>RCA>LM。结论CTA检查对冠状动脉病变的诊断准确性较高,可作为冠心病的辅助检查和筛查手段在临床应用,有较高的排除诊断价值。

Diagnostic Value of Cardiac CT One-stop Examination Combined with CTA on Coronary Heart Disease

Objective To explore the diagnostic value of cardiac CT one-stop examination combined with CT angiography(CTA) on coronary heart disease. Methods A total of 68 patients who were scheduled to diagnose or diagnosed as coronary heart disease in our hospital from January 2017 to January 2019 were selected for the study. Coronary CTA was performed in our hospital, and Coronary angiography(CAG) was performed in the other hospital within 2 weeks. CTA images were observed and analyzed, and CAG examination results were taken as golden standards to assess the diagnostic value of CTA on coronary heart disease and coronary artery lesions. Results The sensitivity, specificity, accuracy rate, positive predictive value, negative predictive value and Kappa value of CTA in the diagnosis of coronary heart disease were 96.15%, 81.25%, 92.65%, 94.34%, 86.67% and 0.79, and the consistency was high. Comparison of diagnostic efficacy of CTA on coronary artery lesions of primary branches showed sensitivity in LAD>LCX>LM=RCA, specificity in RCA>LAD>LCX>LM and accuracy rate in LAD>LCX>RCA>LM. Conclusion CTA has high diagnostic accuracy on coronary artery lesions, and it can be used as an auxiliary examination and screening method for coronary heart disease in clinical application, and it has a high diagnostic value.