18-三体综合征胎儿超声声像特征分析

目的分析18-三体综合征胎儿超声声像特征,以期早期诊断与处理。方法回顾分析经染色体核型分析确诊的18-三体儿12例超声检查的资料。结果全部18-三体儿存在二个或以上异常超声声像表现。其中,胎儿生长受限、羊水过多表现率最高,各为58.3%;其次是心脏畸形,50.0%;再其次是脉络丛囊肿、单脐动脉、脑发育不全、上肢发育异常。在〈28周的胎儿中,超声异常的表现率最高的是心脏畸形、脉络丛囊肿,各为66.7%,其次是胎儿生长受限、羊水过多,各为50.0%。胎儿生长受限主要表现为股骨长度发育落后于正常。结论超声检查是产前筛查18-三体儿的有效手段。

Analysis of sonographic features of trisomy 18

Objective To evaluate the sonographic characteristics of fetus with trisomy 18.Methods The results of ultrasound findings of 12 cases of trisomy 18 were reviewed.Results All cases had at least two abnormal sonographic findings.Fetal growth restriction and polyhydramnios were the most common findings(58.3%)followed by cardiac anomalies(50%).Other common sonographic findings included choroid plexus cysts,single umblical artery,lateloencephalia and preaxial upper limb reduction.For those less than 28 gastation...