摘要
目的以冠状动脉造影作为诊断冠状动脉狭窄的金标准,评价320排动态容积CT冠状动脉成像诊断冠状动脉狭窄的准确性。方法应用320排动态容积CT对85例可疑冠心病患者行冠状动脉成像检查,同期行冠状动脉造影。结果 320排动态容积CT冠状动脉成像可获得较好的图像质量,可用于诊断冠状动脉狭窄。320排动态容积CT诊断冠状动脉轻度狭窄的敏感度为90.9%,特异度为99.2%,阳性预测值为89.6%,阴性预测值为99.3%,准确率为98.6%;诊断冠状动脉中度狭窄的敏感度为92.8%,特异度为98.9%,阳性预测值为90.9%,阴性预测值为99.2%,准确率为98.3%;诊断冠状动脉重度狭窄的敏感度为87.4%,特异度为98.8%,阳性预测值为89.2%,阴性预测值为98.6%,准确率为97.6%;诊断冠状动脉闭塞病变的敏感度为50.0%,特异度为99.9%,阳性预测值为66.7%,阴性预测值为99.8%,准确率为99.7%;诊断冠状动脉中度以上狭窄的敏感度为94.1%,特异度为97.2%,阳性预测值为89.2%,阴性预测值为98.5%,准确率为96.6%。结论 320排动态容积CT冠状动脉成像是一种无创、有效诊断冠状动脉狭窄的方法。
Ahn To evaluate the diagnostic accuracy of coronary artery stenosis with 320-slice dynamic volume computed tomography （320-DVCT） in comparison of selective coronary angiography. Methods Eighty-five patients with suspected coronary artery disease underwent 320-DVCT coronary angiography and selective coronary angiography subsequently. All available coronary segments were included in the analysis, regardless of size or image quality. Lesion with 〉 50% diameter stenosis were considered significant. Image quality was analyzed, and the sensitivity, specificity, positive and negative predictive value of mild, moderate, severe coronary stenosis, occlusive coronary artery and t〉50% stenosis were calculated. Results The images acquired from 320-DVCT were excellent and sufficient and can be used to evaluate coronary stenosis. The sensitivity, specificity, positive and negative predictive value of 320-DVCT for detec- ting severe coronary stenosis, occlusive coronary artery and t〉50% stenosis were 90. 9% , 99. 2%, 89. 6%, 99. 3% and 98.6% , respectively, by mild stenosis, 92. 8% , 98.9%, 90. 9% , 99.2% and 98.3%, respectively, by moderate stenosis, 87.4%, 98.8%, 89.2%, 98.6% and 97.6%, respectively, by severe stenosis, 50. 0%, 99.9%, 66. 7%, 99. 8% and 99. 7%, respectively, by occlusive coronary artery, 94. 1%, 97.2%, 89. 2%, 98.5% and 96. 6%, respectively, by ≥50% coronary artery stenosis. Conclusions 320-DVCT is a new, noninvasive approach of assessing the stenosis of coronary artery and can provide accurate and reliable information.
出处
《中国动脉硬化杂志》
CAS
CSCD
北大核心
2013年第1期74-78,共5页
Chinese Journal of Arteriosclerosis
关键词
冠状动脉
320排动态容积CT
冠状动脉造影
Coronary Artery
320-Slice Dynamic Volume Computed Tomography
Coronary Angiography
