Xu J P
Tongji Hospital, Tongji Medical University, Wuhan.
Zhonghua Fu Chan Ke Za Zhi. 1993 Apr;28(4):214-6, 253.
Twenty eight third trimester pregnant women that B mode ultrasound showed coiling of umbilical cord around fetal neck (UCAN) were monitored by Color Doppler Flow Imaging (CDFI) before delivery. UCAN were discovered in 12 women by CDFI, and all were confirmed at delivery. The accurate diagnosis rate was 100%. The accuracy rate of "no UCAN" diagnosed by CDFI was 93.75%. The accurate diagnosis rate of CDFI was significantly higher than that of the simple B mode ultrasound examination; and the misdiagnosis rate of "no UCAN" was 6. 25%, significantly lower than B mode (53.57%) (both P < 0.01). CDFI might influence the mode of delivery and the fetal prognosis. This study showed that CDFI can precisely detect whether there is UCAN or not before delivery. Meanwhile, the diagnosis standards of UCAN was established.
对28例孕晚期经B超检查显示有脐带绕颈（UCAN）的孕妇，在分娩前采用彩色多普勒血流成像（CDFI）进行监测。CDFI检查发现12例有脐带绕颈，均在分娩时得到证实，准确诊断率为100%。CDFI诊断“无脐带绕颈”的准确率为93.75%。CDFI的准确诊断率显著高于单纯B超检查；“无脐带绕颈”的误诊率为6.25%，显著低于B超（53.57%）（均P<0.01）。CDFI可能影响分娩方式及胎儿预后。本研究表明，CDFI能在分娩前准确检测是否存在脐带绕颈，同时建立了脐带绕颈的诊断标准。
