彩色多普勒超声检测胎儿脐动脉及大脑中动脉血流频谱对预测宫内窘迫的临床意义

摘要

Objective To explore the clinical significance of color Doppler ultrasound detection of blood flow frequency spectrum of fetal umbilical artery (UA) and middle cerebral artery (MCA) for predicting intrauterine fetal distress .Methods 44 middle‐late pregnant women from September 2013 to March 2015 were extracted by the ran‐dom stratified sampling ,including 35 cases in the healthy pregnant women group and 11 cases in the intrauterine dis‐tress pregnant women group .The color Doppler ultrasound was used to detect the resistance index (RI) ,blood flow pulsation index (PI) ,systolic and diastolic velocity ratio (S/D) of fetal UA and MCA in the two groups .Results Compared with the healthy pregnant women group ,RI ,PI and S/D of fetal UA in the intrauterine distress group were significantly increased ,while the blood flow spectrum indexes of MCA were decreased obviously ,the differences were statistically significant (P< 0 .05) .Conclusion The detection of UA and MCA blood flow spectrum indicators in middle‐late pregnancy fetus helps to find the occurrence of intrauterine fetal distress and provides the inspection means for improving the perinatal quality .%目的：探讨运用彩色多普勒检测胎儿脐动脉（UA）及大脑中动脉（MCA）血流频谱相关数值对预测胎儿宫内窘迫的临床意义。方法选取2013年9月至2015年3月随机分层抽取行中晚期孕检孕妇44例，其中健康孕妇组35例，宫内窘迫孕妇组11例，应用彩色多普勒超声检测上述两组胎儿 UA 及 MCA 的阻力指数（RI）、血流搏动指数（PI）、收缩期与舒张期流速比（S／D）。结果与健康孕妇组相比，宫内窘迫孕妇组胎儿 UA 的 RI 、PI 、S／D明显增高，而 MCA 各血流频谱指标明显下降，差异均有统计学意义（P＜0．05）。结论通过检测中晚期妊娠胎儿UA 及 MCA 各血流频谱的指标有助于发现胎儿宫内窘迫的发生，为提高围产质量提供检查手段。