多层螺旋CT对主动脉夹层的影像特征及分析

Multislice CT imaging characteristics of aortic dissection and analysis

目的:分析主动脉夹层的多层螺旋CT影像特征,尤其是内膜破口、直径、假腔的范围及受累血管的显示。方法:对60例主动脉夹层患者行多层螺旋CT检查,其影像信息进行后处理后再现,分析相关影像特点。结果:参考DeBakey分型,60例患者中Ⅰ型12例,Ⅱ型6例,Ⅲ型42例。其中3例合并升主动脉瘤样扩张,2例合并腹主动脉瘤样扩张,32例伴发胸腔或心包腔积液,18例假腔内有附壁血栓形成,17例合并明显的肾缺血,11例右半肠管缺血,2例左半肠管缺血,2例合并一侧下肢动脉闭塞。破裂口检查率为93%,影像诊断临床符合率为91.3%。结论:多层螺旋CT造影检查可明确主动脉夹层诊断、分型、受累范围及脏器累及情况评估和术后评估,对临床诊断的明确、手术方式制定及术后评估意义重大。

Objective： Analysis of multislice CT imaging characteristics of aortic dissection, especially lining breach False lumen diameter range and the affected blood vessels of displaying methods of 60 patients with aortic dissection were row multislice CT examination, imaging information for reprocessing, after analyzing the characteristics of the relevant images. Methods：Sixty patients with aortic dissection were row multislice CT examination, imaging information for reprocessing, after analyzing the characteristics of the relevant images. Results：Reference DeBakey type, type 12 cases, 6 cases, 42 cases in 3 merger litres of aortic aneurysm sample expansion, expansion and merger of 2 cases of abdominal aortic aneurysm samples with 32 cases of pleural or pericardial cavity effusion False lumen with mural thrombus formation is, 17 cases with obvious kidney ischemia 18 cases, 11 cases of right hemisphere bowel ischemia, left bowel ischemia is 1 side lower limb artery occlusion in 2 cases to the merger 2 cases of ruptured mouth check rate was 93%, the clinical image diagnosis coincidence rate was 91.3%. Conclusion：Multislice CT angiography can clear diagnosis of aortic dissection parting the affected scope and organ involvement situation assessment, after evaluation, to clinical diagnosis of clear surgical procedure and postoperative evaluation is of great significance.