摘要 :目的 评价多层螺旋CT血管造影(MSCTA)对主动脉夹层动脉瘤的诊断价值。 方法 回顾性分析28例主动脉夹层动脉瘤的MSCTA表现。采用容积重建(VR)、多平面重建(MPR)及曲面重建(CPR)等方法进行三维重建。 结果 28例中6例为DebakeyⅠ型，9例为Ⅱ型，另13例为Ⅲ型。其中左或右肾动脉受累及者共计11例次，均在三维重建中有特征表现。 结论 MSCTA能迅速准确诊断主动脉夹层动脉瘤，三维重建可以直观地提供主动脉夹层病变后受累及组织器官灌注不足的早期依据。

    关键词 :主动脉夹层动脉瘤;MSCTA

    The use of Multi-slice CT Angiography(MSCTA)to diagnose dissecting aortic aneurysm

    LU Xin，XU Kai，LI Jiang-shan，et al

    (Department of radiology，Affiliated Hospital of Xuzhou Medical Collage，Xuzhou，Jiangsu221002，China)

    Abstract:Objective To evaluate the value of multi-slice CT angiography(MSCTA)in diagnosing dissecting aortic an-eurysm.Methods Retrospective study was made to analyse the MSCTA features in28cases of dissecting aortic aneurysm.3D reconstruction was made using the methods of VR，MPR and CPR.Results Among the28cases，4were of Debakey typeⅠ，9of typeⅡ ......