冠心病亚秒双螺旋CT检查与冠脉造影对比研究

Comparative study of subsecond doule - helix CT and coronary arteriography in diagnosis of coronary artery disease.

目的探讨亚秒双螺旋CT(DHCT)对冠心病的诊断价值。方法对38例可疑冠心病患者行亚秒DHCT检测冠状动脉钙化(CAC)和冠状动脉造影(CAG)。DHCT采用层厚2mm、螺距1.5速度0.7秒进行平扫,然后增强和三维重建。结果用CAC诊断冠心病的敏感性、特异性和准确性分别为88％、79％和84％。冠心病组的CAC积分(217±395)明显高于非冠心病组(28±84,P<0,001)。结论亚秒DHCT检测CAC简单方便,用来诊断和预测冠心病有重要价值。

Objective To explore the Value of coronary artery calcification (CAC) detected by subsecond double -helix computed tomography (DHCT) in the diagnosis of coronary heart disease (CHD) .Methods Subeecond DHCT was performed for detecting CAC in 38 patients undergone coronary angiography (CAG) whom were suspected CHD.Thickeness of 2mm, and pitch = 1.5.speed of 0.7 second, were used in DHCT scan.Both enhanced and 3-D reconstruction were performed in all cases.Results The sensitivity, specificity, and accuracy for existed CAC to predict CAD were 88%, 79%and 84%, respectively.The CAC score was much higher in patients with CAD (217 ± 395) compared with those without CAD (28 ±84, P< 0.001) .Conclusion Subsecond DHCT is easy to be examinated and has greater value in the diagnosis and prediction of CHD.