uterine artery Doppler
Ultrasound assessment of blood flow in uterine arteries to predict pregnancy complications.
Full Definition
Uterine artery Doppler is a specialized ultrasound technique that measures blood flow velocity and resistance in the uterine arteries, typically performed between 20-24 weeks of gestation. The study evaluates the pulsatility index (PI) and resistance index (RI) to assess placental vascular development. Abnormal uterine artery Doppler studies, characterized by elevated resistance indices and the presence of notching, are associated with increased risk of preeclampsia, fetal growth restriction, and placental abruption. The examination is particularly valuable in high-risk pregnancies for early identification of uteroplacental insufficiency.
Usage
Usage note: Capitalize 'Doppler' when referring to the technique; lowercase when used as an adjective.
In Context
- "Bilateral uterine artery Doppler studies revealed elevated pulsatility indices with persistent notching at 22 weeks." — Ultrasound report
- "Normal uterine artery Doppler findings provide reassurance regarding placental function." — High-risk pregnancy consultation