Fig. 3

Pregnancy with preeclampsia, gestational age 33 weeks, and estimated fetal. Weight 1.9 kg. a Grade II posterior placenta with SWV = 2.31 m/s, depth 6.2 cm. b Normal Doppler flow in the umbilical artery with RI 0.6. In the current study, in the placenta of pregnancies complicated by preeclampsia, the SWV was higher than the normal placenta, even with normal Doppler flow