The association of placental to fetal ratio with pregnancy duration.

ABSTRACT:

Introduction

Our objective was to study the association of placental size, fetal size, and placental size relative to fetal size (placental to fetal ratio) at gestational week 27 with time to spontaneous delivery.

Material and methods

We included 100 pregnancies in a follow-up study from gestational week 27 until spontaneous delivery. Placental and fetal volume (in cm³) were measured at gestational week 27 by magnetic resonance imaging (MRI), and the association of placental to fetal ratio (placental volume/fetal volume) with delivery after spontaneous onset of labor was estimated as hazard ratios (HR) by applying Cox regression models. Pregnancies with deliveries after planned cesarean section or induction of labor provided follow-up time until these events. An H

SUBMITTER: Kulseng CPS 

PROVIDER: S-EPMC11981096 | biostudies-literature | 2025 May

REPOSITORIES: biostudies-literature