64排多层螺旋CT冠状动脉成像与导管法冠状动脉造影评价冠状动脉狭窄的对比研究

Value of 64-slice computed tomography coronary angiography in diagnosing coronary stenosis compared with catheter coronary angiography

目的与导管法冠状动脉造影结果对照,评价64排多层螺旋CT对冠状动脉狭窄诊断的临床应用价值。方法50例临床疑诊为冠心病患者同期行64排螺旋CT冠状动脉扫描和导管法冠状动脉造影检查,对冠状动脉狭窄情况进行评估。结果以导管法冠状动脉造影结果为标准,64排多层螺旋CT冠状动脉成像诊断冠状动脉狭窄≥50%病变的敏感性92.3%,特异性96.7%,准确度95.0%,阳性预测值94.7%,阴性预测值95.2%。结论64排多层螺旋CT冠状动脉成像是一种无创、简便、安全、可靠的筛查冠心病的手段,前景广阔,值得推广。

Objective To evaluate the diagnostic performance of 64-slice spiral CT in coronary artery stenosis.Methods Fifty patients with suspected coronary artery disease underwent both 64-slice computed tomography coronary angiography(CTCA) and catheter coronary angiography(CA),and the results were compared.64-slice CTCA adopted methods of intravenous injecting contrast agent and retrospective ECG-gated scanning.Multi-planar reconstruction(MPR),curved-planar reconstruction(CPR),volume rendering(VR) and maximum inten...