儿童主动脉缩窄的影像诊断与病理分类探讨

目的；报道149例先天性主动脉缩窄（CoA)，评价磁共振对儿童主动脉缩窄的实际诊断价值并讨论主动脉缩窄的病理分类。材料和方法：在149例中，114例经心血管造影诊断，15例经造影增强磁共振血管成像术（CE－MRA）诊断，20例同时做了两种检查。结果：149例中，78例CoA伴有脉导管未闭，71例不伴有动脉导管未闭；在20例同时做了心血管造影和CE－MRA的病例中，CE－MRA优于心血管造影5例，心血管造影优于CE－MRA6例，无差别者9例。结论：CE－MRA能相当准确地诊断儿童先天性主动脉缩窄，主动脉缩窄需要有新的更合理的病理分类。

Pathologic Classification and Imaging Diagnosis of Coarctation of Aorta

Purpose:To report 149 cases of congenital coarctation of aorta(CoA) and to evaluate the clinical diagnostic value of magnetic resonance(MR) in children with CoA and discuss the pathologic classification of CoA.Materials and methods:114 cases of CoA were diagnosed by angiocardiography,15 cases were diagnosed by contrast-enchanced MR angiography(CE-MRA) and 20 cases were diagnosed by angiocardiography and CE-MRA.Results:The angiocardiography and CE-MRA demonstrated that there were 78 cases of CoA with patent ductus arteriosus(PDA) and 71 without PDA.In 20 patients studied by CE-MRA and angiocardiography,CE-MRA was superior to angiocardiography in 5 cases,angiocardiography was superior to CE-MRA in 6 cases.Conclusion:CoA can be diagnosed correctly by CE-MRA and CoA .New pathologic classification.