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目的探讨双源CT(DSCT)冠状动脉成像诊断冠状动脉狭窄(狭窄度≥50%)的准确性及可行性。方法回顾性分析24例冠状动脉粥样硬化性心脏病(冠心病)患者的DSCT冠状动脉成像结果并与选择性冠状动脉造影结果进行比较分析。结果以冠状动脉血管造影为标准,以冠状动脉节段为基础,DSCT诊断冠状动脉明显狭窄的敏感度、特异度、准确度、阳性预测值、阴性预测值分别是92.0%、98.0%、96.2%、95.2%、96.6%。结论 DSCT冠状动脉成像是一种无创、简便、优良的冠状动脉成像方法,对诊断冠状动脉明显狭窄有很高的准确性,可作为无创性评价冠状动脉狭窄的手段,对冠状动脉粥样硬化的筛选和评估有重要意义。
Objective To investigate the accuracy and feasibility of dual-source CT (DSCT) coronary angiography in the diagnosis of coronary artery stenosis (stenosis≥50%). Methods The results of DSCT coronary angiography in 24 patients with coronary atherosclerotic heart disease (CHD) were retrospectively analyzed and compared with those of selective coronary angiography. Results The sensitivity, specificity, accuracy, positive predictive value and negative predictive value of DSCT in diagnosing significant stenosis of coronary arteries were 92.0%, 98.0% and 96.2%, respectively, based on the coronary artery segments with coronary artery angiography as the standard. , 95.2%, 96.6%. Conclusion DSCT coronary angiography is a noninvasive, simple and excellent method of coronary artery imaging. It has high accuracy in diagnosing obvious stenosis of coronary artery and can be used as a noninvasive means to evaluate coronary stenosis. Screening and evaluation are important.