先天性主动脉弓畸形的MRI诊断

目的：评价MRI在主动脉弓畸形诊断中的作用。资料与方法：回顾分析228例心脏MR检查中61例先天性主动脉弓畸形的MRI表现，37例尚有心血管造影（CAG），44例经手术证实，结果：61例先天性主动脉畸形中，主动脉缩窄（COA）25例，右位主动脉弓24例，主动脉弓离断（IAA）5例，单纯动脉导管未闭（PDA）4例，迷走右锁骨下动脉（伴COA）2例，孤立性左有下动脉（伴右位主动脉弓）1例，永存第5对主动脉弓（伴IAA）1例，主动脉扭曲畸形（Kink A)2例，升主动脉扭曲1例，结论：比较MRI与CAG，MRI在对先天性主动脉畸形的诊断方面已达到CAG水平。

MRI Diagnosis of Congenital Malformations of Aortic Arch

Objective To evaluate MRI in the diagnosis of congenital malformations of aortic arch.Materials and Methods MRI findings in 61 patients with congenital malformations of aortic arch were retrospectively analyzed. Of 61 cases, cardioangiography was performed in 37 and the diagnosis was confirmed by operation in 44.Results The malformations in this study included coarctation of aorta (n=25), dextroaortic arch (n=24), interruption of aortic arch (n=5), simple patent arterial duct (n=4), aberrant right subclavicular artery complicated with aortic coarctation (n=2), solitary left subclavicular artery complicated with dextroaortic arch (n=1), persistent fifth aortic arch complicated with interruption of aortic arch (n=1), aortic kink (n=2) and ascending aorta kink (n=1). Conclusion In the diagnosis of congenital malformations of aortic arch, MRI is as effective as cardioangiography.