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目的：评价ＭＲＩ在先天性主动脉缩窄中的诊断作用。材料与方法：分析１４例主动脉缩窄的ＭＲＩ，并与超声心动图（ＵＣＧ）和心血管造影（ＣＡＧ）进行比较，其中１２例经手术证实。结果：ＭＲＩ显示了１４例主动脉缩窄及缩窄的程度、形态（细管状狭窄６例，环状狭窄５例，隔膜形狭窄３例），并显示了缩窄处与左锁骨下动脉的关系。合并畸形有：１０例室间隔缺损，１３例动脉导管未闭，１例马凡氏综合征，１０例主动脉弓发育不良。比较三种影像方法：ＭＲＩ诊断能力明显优于ＵＣＧ，基本达到ＣＡＧ水平。结论：在先天性主动脉缩窄的临床诊断中，ＭＲＩ应成为主要或首选检查方法，并有可能部分代替ＣＡＧ成为临床最终诊断方法
Objective: To evaluate the diagnostic value of MRI in congenital aortic constriction. Materials and Methods: Fourteen patients with aortic constriction MRI were analyzed and compared with echocardiography (UCG) and cardiovascular angiography (CAG). Twelve of them were confirmed by surgery. Results: MRI showed the degree of constriction and narrowing of the aorta in 14 cases (morphology of 6 cases of stenosis, 5 cases of annular stenosis, 3 cases of septal stenosis) and showed the relationship between constriction and left subclavian artery relationship. Deformity with: 10 cases of ventricular septal defect, 13 cases of patent ductus arteriosus, 1 case of Marfan syndrome, 10 cases of aortic arch dysplasia. Comparing the three imaging methods: MRI diagnostic ability was significantly better than UCG, basically reached the CAG level. CONCLUSIONS: MRI should be the primary or preferred method of detection in the clinical diagnosis of congenital aortic constriction, and may be partially replaced by CAG as the final clinical diagnostic method