儿童主动脉梗阻性病变的磁共振诊断

The diagnosis of obstructive aortic anomalies in children:CE MR angiography

目的 :报道 93例儿童梗阻性主动脉病变并评价其磁共振成像技术。方法 :主要采用造影增强磁共振血管成像术 (CEMRA)诊断儿童梗阻性主动脉病变。结果 :93例中 ,主动脉缩窄 67例 ,主动脉弓离断 16例 ,主动脉瓣上狭窄2例 ,大动脉炎 8例。男 62例 ,女 3 1例。 82例经手术或心血管造影检查证实。磁共振诊断正确率为 97.5 %。结论 :造影增强磁共振血管成像术是很好的儿童梗阻性主动脉病变诊断手段。

Objective:To study the MRI features and techniques of obstructive aortic anomalies in children. Methods: 93 children with obstructive aortic anomalies underwent contrast enhanced magnetic resonance angiography (CE MRA) .There were 62 males and 31 females.82 patients were proved by surgical findings or conventional angiocardiography.Results:CE MRA demonstrated coarctation of aorta (n=67),interruption of aortic arch(n=16) ,supravalvar aortic stenosis(n=2) and aortitis(n=8).The diagnostic accuracy of MRI was 97.5%.Conclusion:CE MRA is a reliable noninvasive imaging method for diagnosing obstructive aortic anomalies in children.