主动脉壁内血肿的电子束CT诊断  

Diagnosis of aortic intramural hematoma by electron beam CT

作　　者：杜渭清[1] 张雪林[1] 郑敏文[2] 魏梦绮[2] 徐俊卿[2] 徐健[2] 

机构地区：[1]南方医科大学南方医院影像中心,广东广州510515 [2]第四军医大学西京医院放射科,陕西西安710032

出　　处：《南方医科大学学报》2007年第12期1932-1934,共3页Journal of Southern Medical University

摘　　要：目的评价电子束CT(EBCT)诊断主动脉壁内血肿的价值。方法采用Imatron C-150型EBCT扫描机,连续容积增强扫描,对25例主诉急性胸背痛患者进行EBCT检查并诊断为主动脉壁内血肿。结果25例按Stanford分型,A型7例,B型18例。EBCT所见主动脉壁内血肿的直接征象:主动脉壁呈新月形或环形增厚≥5mm,无内膜破裂形成的双腔主动脉征象。间接征象:钙化内移7例,穿透性溃疡征12例,主动脉壁粥样硬化改变18例,内膜渗漏5例。并发征象:心包积液5例,胸腔积液14例,主要分支血管受累5例,主动脉夹层3例,主动脉瘤4例。结论EBCT能为主动脉壁内血肿的诊断和治疗提供重要信息,且便于治疗后随诊观察。Objective To assess the value of electron beam CT （EBCT） in the diagnosis of aortic intramural hematoma （AIH）. Methods Twenty-five patients who complained of acute chest and back pain were scanned with an EBCT scanner （Imatron C-150） using contrast-enhanced continuous volume scanning （CVS） for establish the diagnosis of AIH. Results Seven patients were diagnosed as having Stanford type A, and the others as type B AIH. The direct features of AIH in EBCT included crescent or circular thickening （〉5 ram） of the aortic wall without signs of lumen formation resulting from intimal rupture. The indirect features included calcification ingression （7 cases）, penetrating ulcer （12 cases）, atherosclerosis （18 cases） and leakages （5 cases）. The complicating features included pericardial effusion （5 cases）, pleural effusion （14 cases）, involvement of the large branches （5 cases）, aortic dissection （3 cases） and aneurysms （4 cases）. Conclusion EBCT can provide important information for the diagnosis and treatment of AIH, and can be useful for follow-up observation of the patients.

关 键 词：主动脉 夹层 体层摄影术 X线计算机 

分 类 号：R543[医药卫生—心血管疾病]