胎儿主动脉弓异常的超声诊断和畸形特征分析

目的:分析产前超声诊断胎儿主动脉弓异常的超声特征及结局,了解胎儿主动脉弓异常的畸形特征,提高主动脉弓异常的产前超声诊断率。方法:选择2006~2009年在深圳市妇幼保健院行产前系统超声检查并获得结果验证的91例胎儿主动脉弓异常者做为研究对象,分析其产前超声诊断、畸形特征及结局。结果:本组研究通过常规心脏筛查切面加主动脉弓特殊切面,产前超声共诊断148例主动脉弓异常,漏诊1例主动脉弓缩窄,91例获得结果验证,包括主动脉弓缩窄30例,主动脉弓离断7例,主动脉弓缩窄和离断在三血管气管平面(3VTV)上显示主动脉内径小,主动脉/肺动脉内径比例失调;右位主动脉弓及主动脉弓分支异常52例,双主动脉弓2例,两者在3VTV显示主动脉弓和动脉导管之间距离增大。24例合并其他严重心脏畸形,7例染色体异常,28例合并心外畸形。主动脉弓异常的产前超声诊断率为92.5%(86/93)。在未合并其他严重心脏畸形的68例中有61.8%(42/68)新生儿结局良好。结论:超声是诊断胎儿各种主动脉弓异常的一种主要方法,三血管气管平面上主动脉内径小、主动脉/肺动脉内径比例失调及其之间距离增大是诊断主动脉弓异常的线索,主动脉弓异常可能合并其他严重心内外畸形和/或染色体异常,也可不合并其他严重心内外畸形,后者预后良好。

Analysis on the ultrasonic diagnosis and pathognomonic features of fetal aortic arch anomaly

Objective:To analyze the ultrasonic features and outcomes of fetal aortic arch anomaly diagnosed by prenatal ultrasonography,understand the pathognomonic features of fetal aortic arch anomaly,improve the diagnosis rate of prenatal ultrasonography for fetal aortic arch anomaly.Methods:91 fetuses with aortic arch anomaly who received prenatal systematical ultrasonography and were diagnosed definitely in the hospital from 2006 to 2009 were selected as study objects.The prenatal ultrasonic diagnosis,pathognomon...