双源CT血管成像在腹主动脉瘤中的临床应用价值

Clinical value of dual-source CT in the assessment of abdominal aortic aneurysm

目的:评价双源CT血管成像在腹主动脉瘤中的临床应用价值。方法:回顾性分析33例接受双源CT血管造影及主动脉造影检查确诊为腹主动脉瘤患者的影像资料。所有图像均行三维重建后处理及分析,观察腹主动脉瘤的部位、形态、分型、范围,并对腹主动脉瘤进行分型及相关测量。结果:33例腹主动脉瘤中,5例为近肾型,28例为肾下型。双源CT对瘤体长度、大小,近端及远端瘤颈长度、直径,近端瘤颈与动脉瘤长轴夹角测量准确。结论:双源CT可准确诊断腹主动脉瘤,并且可以提供详细而准确术前信息,是腹主动脉瘤术前诊断和术前评价的首选影像学检查方法。

Objective：To assess the clinical value of dual-source CT angiography （DSCTA） in the assessment of abdominal aortic ancurysm. Methods：Retrospectively analysis of 33 cases of patients who underwent DSCTA and digital subtraction angiography （DSA） with abdominal aortic aneurysm （AAA）. All images were analyzed using post-processing tecniques. The observation and analysis was made on location, shape, type and extension of the AAA, and relevant parameters on the requirement of endovascular stent graft were measured in patients with infrarenal AAA. Results： Among the 33 cases of AAA, 28 cases were infrarenal AAA, while the remaining 5 cases were juxtarenal AAA. The size, length of aneurysm body, length of proxial and distal neck, angle between proximal neck and body of aneurysm could be measured accurately by DSCT. Conclusion： DSCT is accurate in the diagnosis and preoperative evaluation of abdominal aneurysm, and is the modality of choice for the diagnosis and preoperative evaluation of AAA.