主动脉夹层的多层螺旋CT表现和诊断价值  

Manifestations and diagnostic value of multi-slice CT in aortic dissection

作　　者：黄朝华[1] 林时勖[1] 杨江爽[1] 翁泽生[1] 杜光舟[1] 林志钿[1] 

机构地区：[1]汕头市中心医院(中山大学附属汕头医院)CT室,广东515031

出　　处：《影像诊断与介入放射学》2010年第3期140-142,共3页Diagnostic Imaging & Interventional Radiology

摘　　要：目的分析主动脉夹层的MSCT表现,评价64层螺旋CT血管成像在主动脉夹层诊断的临床应用价值。方法回顾性分析50例经64层螺旋CT诊断及临床证实的AD成像资料,运用多平面重建、最大密度投影和容积成像等后处理方法显示真腔、假腔和内膜片。结果 50例AD均清楚地显示主动脉全程及其主要分支,均能辨别真腔、假腔、内膜片及撕破口部位,其中DebakeyⅠ型15例,DebakeyⅡ型6例,DebakeyⅢ型29例。主动脉弓三大分支受累5例;腹腔干受累9例;肠系膜上动脉受累10例;右肾动脉受累8例,左肾动脉受累12例;右侧髂总动脉受累7例,左侧髂总动脉受累13例,双侧髂总动脉均受累5例;合并动脉瘤或瘤样扩张4例;合并假腔内血栓形成10例;合并主动脉壁钙化23例。结论多层螺旋CT能为主动脉夹层的诊断、鉴别诊断和治疗提供准确的信息。Objective To analyze the manifestations and value of multi-slice CT in diagnosis of aortic dissection. Methods CT scans of 50 cases （40 male, 10 female） of clinically confirmed aortic dissection were retrospectively analyzed. Post-processing with multi- planar reconstruction, maximum intensity projection and volume rendering methods demonstrated the true lumen, false lumen and intimal flap. Results The entire aorta and branches were demonstrated well by MSCT on all 50 patients. The true lumen, false lumen, intimal flap, location of intimal entry and tear were shown satisfactorily in all cases. 15 cases were type I, 6 were type II, 29 were type 111. All three main branches of the aortic arch were involved in 5 cases, involvement of the celiac trunk was shown in 9 cases, superior mesenteric artery in 10, right renal artery in 8, left renal artery in 12, right iliac artery in 7, left iliac artery in 13, bilateral iliac arteries in 5, complicated with aneurysm or aneurysmal dilatation in 4, complicated with atherosclerosis in 23 cases. Conclusion Multi-slice CT provides accurate information for the diagnosis and treatment of aortic dissection.

关 键 词：主动脉夹层 多层螺旋CT 血管成像 

分 类 号：R816.2[医药卫生—放射医学] R543.1[医药卫生—临床医学]