应用彩色多普勒监测胎儿肾动脉血流S/D、PI、RI值,根据各值变化预测围产儿结局。结果表明妊高征(合并或不合并IUGR)胎儿肾动脉血流阻力指标随孕周增加呈上升趋势,与正常妊娠组比较差异有显著意义(P<0.01)。当胎儿肾动脉血流S/D≥4、PI≥1.9、RI≥0.8时,提示胎儿窘迫或IUGR的发生,当血流出现逆流波形时,提示胎儿宫内缺氧严重,围产儿结局不良。胎儿肾动脉血流PI值与羊水最大垂直径呈负相关性(P<0.01)。 Color Doppler monitoring of fetal renal artery blood flow S / D, PI, RI values, changes in the value of predicting perinatal outcome. The results showed that PIH markers of fetal renal artery resistance with increasing gestational age increased with gestational hypertension (P <0.01), which was significantly different from that of normal pregnancy group (P <0.01). Fetal renal artery blood flow S / D≥4, PI≥1.9, RI≥0.8, suggesting that fetal distress or IUGR occurred when the blood flow counter-current waveform, suggesting that severe intrauterine fetal hypoxia, poor perinatal outcomes. Fetal renal artery blood flow PI and amniotic fluid maximum vertical diameter was negatively correlated (P <0.01).