Evaluation of classic and novel ultrasound signs of placenta accreta spectrum

Improvement in the antenatal diagnosis of placenta accreta spectrum (PAS) would allow preparation for delivery in a referral center, leading to decreased maternal morbidity and mortality. Our objectives were to assess the performance of classic ultrasound signs and to determine the value of novel ultrasound signs in the detection of PAS.This was a retrospective cohort study of women with second-trimester placenta previa who underwent...