Ultrasound-based gestational-age estimation in late pregnancy.

ABSTRACT:

Objective

Accurate gestational-age (GA) estimation, preferably by ultrasound measurement of fetal crown-rump length before 14 weeks' gestation, is an important component of high-quality antenatal care. The objective of this study was to determine how GA can best be estimated by fetal ultrasound for women who present for the first time late in pregnancy with uncertain or unknown menstrual dates.

Methods

INTERGROWTH-21^st was a large, prospective, multicenter, population-based project performed in eight geographically defined urban populations. One of its principal components, the Fetal Growth Longitudinal Study, aimed to develop international fetal growth standards. Each participant had their certain menstrual dates confirmed by first-trimester ultrasound examinatio

SUBMITTER: Papageorghiou AT 

PROVIDER: S-EPMC6680349 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature