主动脉缩窄及主动脉弓离断的电子束CT诊断  

Electron Beam CT Diagnosis of Coarctation of Aorta and Interruption Aortic Arch

作　　者：文利[1] 戴书华[1] 邹利光[1] 刘卫金[1] 孙清荣[1] 张冬[1] 

机构地区：[1]第三军医大学附属新桥医院放射科

出　　处：《中国医学计算机成像杂志》2007年第3期163-166,共4页Chinese Computed Medical Imaging

摘　　要：目的:探讨电子束CT诊断先天性主动脉缩窄和主动脉弓离断的价值。材料和方法:共10例病人,年龄6-18岁,均经手术证实。对所有患儿行EBCT增强扫描,并对图像行三维重建。结果:10例病人术前均得到正确诊断,其中8例为主动脉缩窄,2例为主动脉弓离断。EBCT均显示了全部8例主动脉缩窄及其缩窄的程度、形态,并显示缩窄处与左锁骨下动脉的关系。其中6例(75%)为局限性狭窄,2例(25%)形成中-重度长管状狭窄。合并畸形有:3例合并动脉导管未闭,1例合并室间隔缺损,1例合并肺动脉狭窄,1例合并二尖瓣狭窄,2例同时合并动脉导管未闭和室间隔缺损。2例主动脉弓离断病例,均合并有动脉导管未闭、室间隔缺损和肺动脉狭窄。EBCT均显示升主动脉与降主动脉呈分离状。结论:EBCT作为一种无创性检查方法,对先天性主动脉病变的诊断有重要价值,并能同时显示合并的胸部大血管异常。Purpose： To evaluate the clinical diagnostic value of EBCT in coarctation of aorta （CoA） and interruption aortic arch（IAA）. Materials and Methods： There were ten patients aged from 6 to 18 years in our group. All cases were received post - contrast EBCT scans. Imaging construction was done after scan. Results： All cases were diagnosed correctly by EBCT and proved by surgery. Eight cases were diagnosed as CoA, the other two cases as IAA. Among the 8 cases of CoA, localized stenosis was found in 6 patients（75%）, and moderate or severe segmental tubular stenosis in 2 （25%）. The stenotic segment and the relationship between the stenotic segment and left subclavian artery was clearly displayed on constructed images. Of the 8 cases of CoA, 2 accompanied with PDA and VSD,3 with PDA, 1 with VSD, i with MS, 1 with PS. In 2 cases of interruption aortic arch, interrupted aortic arch was clearly showed by EBCT construction images. Both two cases accompanied by PDA, VSD and PS. Conclusion： CoA and IAA can be diagnosed correctly by EBCT, EBCT is an excellent noninvasive modality in diagnosing CoA and IAA.

关 键 词：心血管畸形 主动脉缩窄 主动脉弓离断 电子束CT 

分 类 号：R816.2[医药卫生—放射医学]