64排螺旋CT冠状动脉成像的临床应用  

Clinical application of 64-slice CT on coronary images

作　　者：郑悦[1] 林时勖[1] 许壮勇[1] 

机构地区：[1]汕头市中心医院放射科,515031

出　　处：《国际医药卫生导报》2010年第9期1051-1054,共4页International Medicine and Health Guidance News

摘　　要：目的探讨64排螺旋CT用于冠状动脉成像的图像质量和诊断冠状动脉狭窄≥50％的准确性，方法 采用64排螺旋CT对临床拟诊为冠状动脉性心脏病的113例病例扫描，其中42例有冠状动脉造影与64排螺旋CT冠状动脉成像作为对照。分析冠状动脉成像质量和计算诊断冠状动脉狭窄≥50％的敏感性、特异性、阳性预测价值及阴性预测价值。结果成像质量Ⅰ级93例（82．30％），Ⅱ级17例（15．04％），Ⅲ级3例％（2．65％）。64螺旋CT冠状动脉成像诊断冠状动脉狭窄≥50％的准确性为92．86％，敏感性、特异性、阳性和阴性预测价值分别为95．29％、93．33％、96．15％、87．50％。结论64排螺旋CT冠状动脉成像图像质量高，对冠状动脉狭窄≥50％有较高的诊断价值。Objective To evaluate the quality of coronary images of 64-slice CT and the diagnostic accuracy of coronary artery stenosis ≥ 50%. Methods One hundred and thirteen patients with suspected coronaly artery disease were analvzed with 64-slice CT. Among them, 42 patients underwent conventional coronary angiography （ CAG ）. Image quality was analyzed, and the sensitivity, specificity, positive and negative predictive value of ≥ 50% stenosis were also calculated, Results The images were excellent （ Ⅰ, 93, 82.30% ）, sufficient （ Ⅱ, 17, 15.04% ） and non-diagnostic （Ⅲ, 3, 2.65% ）, respectively. The sensitivity, specificity, positive and negative predictive value of ≥ 50% stenosis were 95. 29%, 93.33%, 96.15%, 87.50%, respectively. Conelusiola Coronary images from 64-slice CT have excellent quality. The 64-slice CT angiography provides high diagnosis value in detecting coronary artery stenosis ≥ 50%.

关 键 词：血管造影术 冠状血管 螺旋计算机 体层摄影术 

分 类 号：R816.2[医药卫生—放射医学]