First-Trimester Crown-Rump Length and Embryonic Volume of Fetuses with Structural Congenital Abnormalities Measured in Virtual Reality: An Observational Study.

ABSTRACT: Background. With the introduction of three-dimensional (3D) ultrasound it has become possible to measure volumes. The relative increase in embryonic volume (EV) is much larger than that of the crown-rump length (CRL) over the same time period. We examined whether EV is a better parameter to determine growth restriction in fetuses with structural congenital abnormalities. Study Design, Subjects, and Outcome Measures. CRL and EV were measured using a Virtual Reality (VR) system in prospectively collected 3D ultrasound volumes of 56 fetuses diagnosed with structural congenital abnormalities in the first trimester of pregnancy (gestational age 7⁺⁵ to 14⁺⁵ weeks). Measured CRL and EV were converted to z-scores and to percentages of the expected mean us

SUBMITTER: Baken L 

PROVIDER: S-EPMC5379074 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature