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本文以胎儿脐动脉收缩期血流速度峰值比舒张末期血流速度峰值(S/D)做为胎儿-胎盘循环阻力的超声学指标,以胎盘三级绒毛的微小动脉数目做为解剖学指标,对22例妊高征及8例正常妊娠妇女的胎儿脐动脉多普勒血流频谱及胎盘病理进行了观察。结果发现:A 组(妊高征脐动脉多普勒血流频谱 S/D>3)胎盘微小动脉数目(3.1±8.1个/视野)明显少于 B 组和 C 组(脐动脉多普勒血流频谱S/D<3)的微小动脉数(6.4±6.5个/视野、7.2±3.4个/视野),P<0.05。且 A 组新生儿预后比 B 组和C组差(P<0.05)。认为脐动脉多普勒血流频谱 S/D 值与胎盘形态学密切相关。
In this paper, fetus umbilical artery peak systolic blood flow rate than the peak end-diastolic flow velocity (S / D) as fetus - placental circulation resistance ultrasound indicators to placental third-level villi of the number of small arteries as anatomical indicators, Fetal umbilical artery Doppler flow spectrum and placental pathology were observed in 22 cases of PIH and 8 normal pregnant women. The results showed that the number of placental arterioles (3.1 ± 8.1 / field) in group A (umbilical artery Doppler flow spectrum S / D> 3) was significantly less than that in group B and C (umbilical artery Doppler blood (6.4 ± 6.5 eyes / field, 7.2 ± 3.4 eyes / field) with flow spectrum S / D <3), P <0.05. The prognosis of newborn in group A was worse than those in group B and C (P <0.05). U-artery Doppler blood flow spectrum S / D values and placental morphology are closely related.