CT冠状动脉成像在冠心病诊断中的应用价值

Value of CT Coronary Angiography in Diagnosis of Coronary Heart Disease

目的探讨CT冠状动脉成像在冠心病诊断中的应用价值。方法 188例疑似冠心病的患者,均接受冠状动脉CT成像以及选择性冠状动脉造影进行检查,以选择性冠状动脉造影结果作为是否患有冠心病的金标准,评估冠状动脉CT成像的准确性。结果 188例患者共评估血管2 068段,冠状动脉造影(CAG)检查结果对比后,冠状动脉CT成像的诊断特异性为93.75%(300/320),敏感性为94.62%(1 654/1 748),准确性为94.49%(1 954/2 068),漏诊率为4.55%(94/2 068),误诊率为0.97%(20/2 068)。结论冠状动脉CT成像操作简便、具有无创性、诊断效能较高,临床可将其作为早期筛查冠心病的有效方式。

Objective To explore the value of CT coronary angiography in the diagnosis of coronary heart disease. Methods 188 patients with suspected coronary heart disease were examined by coronary CT imaging and selective coronary angiography. The results of selective coronary angiography were used as the gold standard to evaluate the accuracy of coronary CT imaging. Results A total of 2068 segments of blood vessels were assessed in 188 patients. The diagnostic specificity,sensitivity and accuracy, missed diagnosis rate, misdiagnosis rate of coronary CT imaging were 93.75%(300/320), 94.62%(1654/1748),94.49%(1954/2068), 4.55%(94/2068) and 0.97%(20/2068),respectively. Conclusion Coronary CT imaging is simple, noninvasive and effective. It can be used as an effective method for early screening of coronary heart disease.