This study establishes MRI-based normative percentile curves for PV and PFR, from 16 to 36 weeks' gestation, confirming the physiological decline in PFR with advancing gestation. These benchmarks may aid in detecting placental dysfunction and characterizing fetal growth restriction. Further validation is needed in pathological and multiple pregnancies. © 2026 International Society of Ultrasound in Obstetrics and Gynecology.
Bouachba et al. (Thu,) studied this question.