64层螺旋CT在主动脉假性动脉瘤中的应用

Application of 64-slice CT in the Aortic Pseudoaneurysm

目的探讨64层螺旋CT对主动脉假性动脉瘤的诊断价值。资料与方法主动脉假性动脉瘤患者29例,男16例,女13例,年龄35～68岁,平均56岁。均行64层螺旋CT扫描,并将扫描原始数据采用容积再现(VR)、最大密度投影(MIP)、多平面重组(MPR)处理。结果VR明确显示动脉瘤的范围和周围血管的关系;MPR对瘤体内附壁血栓范围的显示较佳;而MIP对瘤壁的钙化及对管腔各段的精确测量颇有价值。结论64层螺旋CT是主动脉假性动脉瘤诊断、随诊观察和术后随访较理想的影像技术。

Objective To evaluate the value of 64-slice CT in diagnosing aortic pseudoaneurysm. Materials and Methods 29 patients with aortic pseudoaneurysm （16 male, 13 female, 35 -68 years old with average of 56 yrs） performed 64-slice CT scan. The original data were reconstructed using volume rendering （VR） ,maximum intensity projection （MIP）, multi-plane reorganization （MPR）. Results VR images showed the extent of aneurysm and the relationship with peripheral vascular clearly. MPR images were good at showing the aneurysm thrombus. MIP images were valuable in showing the calcification of aneurysm thrombus and measuring the lumen accuratly. Conclusion 64-slice CT is a good imaging technology in diagnosis and follow-up of aortic pseudoaneurysm.