Fetal middle cerebral to uterine artery pulsatility index ratios in normal and pre‐eclamptic pregnancies

Abstract

Normal MCA/uterine artery PI ratio decreases with gestational age. Abnormally low MCA/ uterine artery PI ratios are related to unfavorable pregnancy outcome. The predictive value of the MCA/uterine artery PI ratio is similar to that of the MCA/umbilical artery PI ratio.