彩色多普勒超声检测脐动脉血流量的研究

Study of Color Doppler Ultrasound of Umbilical Artery Blood Flow Quantity

目的观察生理状态下胎儿不同发展阶段的脐动脉血流量及其变化规律。方法应用彩色多普勒超声检测70例孕妇(孕13～40周)的正常胎儿的脐动脉血流量。结果脐动脉血流量与胎儿体重呈显著正相关(P<0.001),S/D值和阻力指数(RI)与胎儿体重呈显著负相关(P<0.001),而单位体重脐动脉血流量的变化不显著(P>0.05)。结论由彩色多普勒超声获得的脐动脉血流量信息,在评价胎盘功能中起着重要作用。

Objective To observe umbilical artery blood flow quantities and its changeful regularity about foetuses who were in different development stages under physiological state. Methods 70 cases pregnant women （pregnant age ranging from 13 to 40 weeks） were examined by color Doppler ultrasound to measure the umbilical artery blood flow quantities of the normal foetuses. Results Umbilical artery blood flow quantities correlated linearly with the foetal weights （P〈0.001）, S/D value and resistance indexes（RI） correlated negatively and linearly with the foetal weights（p〈0. 001） while there were not statistical difference in the changes of umbilical artery blood flow quantities per weight （p〈0. 05）.Conclusion The information of umbilical artery blood flow quantity gained by color Doppler ultrasound may play an important role in evaluating the function of placenta.