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本文报道应用B 超探测2877例晚期妊娠中,脐带绕颈520例,临床检查证实478例,B 超诊断符合率91.9%.B 超诊断脐带绕颈,要在B 超下见到胎儿颈部软组织压迹及压迹处的脐带回声,此两项漏掉一项即容易造成误诊.本文认为从28孕周起,B 超即可检出脐带绕颈,为分娩期处理提供依据,其敏感性、特异性均很高,是临床诊断脐带绕颈的可靠方法.
This paper reports the use of ultrasonography 2877 cases of late pregnancy, the umbilical cord around the neck 520 cases, 478 cases confirmed by clinical examination, B ultrasound diagnosis of 91.9% .B ultrasound diagnosis of umbilical cord around the neck, to see fetal neck soft tissue The pressure trace and the trace of the umbilical cord echo, the two missed one that is likely to cause misdiagnosis.This article believes that from 28 gestational weeks, B-to detect the umbilical cord around the neck, providing the basis for the delivery of treatment, its sensitivity , The specificity is high, is a reliable method of clinical diagnosis of umbilical cord around the neck.