64层螺旋CT在冠状动脉成像方面的应用价值

【摘要】 目的探讨64层螺旋CT在冠状动脉成像方面的应用价值。方法对332例疑似冠心病患者行64层螺旋CT检查,用曲面重建(CPR)、最大密度投影(MIP)、三维容积再现(VR)及多平面重建(MPR)等技术重组图像;以其中200例在进行冠状动脉造影(CTA)检查前后的3周内进行X线冠状动脉成像检查(CCA)的患者作为对照。结果 64 SCTCA对冠状动脉狭窄大于50%的血管病变的显示敏感性为95.45%(189/198),特异性为97.88%(1617/1652),阴性预测值为99.45%(1617/1626),阳性预测值为84.37%(189/224)。结论 64 SCTCA在冠状动脉病变的诊断中具有较高的敏感性和特异性,适合用于临床怀疑冠心病的患者X线冠状动脉成像检查前的筛选检查。更多还原

【Abstract】 Objective To investigate the clinical value of 64-slice spiral CT coronary angiography. Methods 332 patients with suspected coronary artery disease were studied by 64-slice spiral CT, and images were retrospectively reconstructed under surface reconstruction(CPR), maximum intensity projection(MIP), 3 D volume rendering(VR) and multiple planar reconstruction(MPR) by two observers. Results Compare with conventional coronary angiography the sensitivity, specificity, positive and negative predictive value of 64-slice spiral CT coronary angiography to identify over 50% stenosis were 95.45%(189/198), 97.88%(1617/1652),84.37%(1617/1626), 99.45%(189/224). Conclusion 64 SCTCA in the diagnosis of coronary artery disease is higher in sensitivity and specificity, clinical suspicion, suitable for screening of coronary heart disease patients before conventional coronary angiography.更多还原