CAJ | 학술논문

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.
목적 탐토64배라선CT용우관상동맥성상적도상질량화진단관상동맥협착≥50%적준학성.방법 채용64배라선CT대림상의진위관상동맥성심장병적113례병례소묘,기중42례유관상동맥조영여64배라선CT관상동맥성상작위대조.분석관상동맥성상질량화계산진단관상동맥협착≥50%적민감성、특이성、양성예측개치급음성예측개치.결과 성상질량Ⅰ급93례(82.30%),Ⅱ급17례(15.04%),Ⅲ급3례%(2.65%).64라선CT관상동맥성상진단관상동맥협착≥50%적준학성위92.86%,민감성、특이성、양성화음성예측개치분별위95.29%、93.33%、96.15%、87.50%.결론 64배라선CT관상동맥성상도상질량고,대관상동맥협착≥50%유교고적진단개치.
Objective To evaluate the quality of coronary images of 64-slice CT and the diag nostic accuracy of coronary artery stenosis ≥ 50%. Methods One hundred and thirteen patients with suspected coronary artery disease were analyzed 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% ) andnon-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. Conclusion Coronary images from 64-slice CT have excellent quality. The 64-slice CT angiography provides high diagnosis value in detecting coronary artery stenosis ≥ 50%.