Doppler velocimetry

Doppler velocimetry

Obstetrics A technique used to analyze blood flow waveforms, allowing accurate noninvasive measurement of volume and velocity of blood flow

Doppler velocimetry

The use of Doppler ultrasound to determine the speed of blood flow through arteries and veins. During pregnancy Doppler ultrasonography can determine whether blood flow rates are adequate in the uterine artery, placenta, and umbilical cord vessels.
See: uteroplacental insufficiency
References in periodicals archive ?
Background: Doppler velocimetry studies of placental and fetal circulation can provide important information regarding fetal well-being providing an opportunity to improve fetal outcome.
Antepartum foetal surveillance with amniotic fluid index measurement and Obstetric ultrasound with foetal Doppler velocimetry was done twice a week.
1] It has been studied that Doppler velocimetry of umbilical artery in unselected and low-risk pregnancies cannot be recommended.
Doppler velocimetry in superior vena cava provides useful information on the right circulatory function in patients with congestive heart failure.
Uterine artery Doppler velocimetry in relation to trophoblast migration into the myometrium of the placental bed.
4] However, the true clinical implications of these placental findings and Doppler velocimetry (DV) associations are still not well established.
The predictive role of doppler velocimetry was based on the differences found in mean uterine artery pulsatility index (PI), resistance index (RI) and peak systolic velocity (PSV), systolic/diastolic velocity ratio (S/D) values between pregnant and nonpregnant groups of women.
Identification of patients at risk for early onset and/or severe preeclampsia with the use of uterine artery Doppler velocimetry and placental growth factor.
Contract notice: Supply delivery and installation of a laser Doppler velocimetry system with a fluorescence laser-induced extension for ~ University of the harbor.
Some specific subjects explored include thin-film sensors integrated in information displays, a high-speed fluorescence imaging system for freely moving animals, ToF cameras for eye-in-hand robotics, and laser Doppler velocimetry technology for integration and directional discrimination.
Optically capturing hundreds of time-resolved velocity records with high fidelity in a difficult environment requires both the Argus probe and the Multiplexing Photonic Doppler Velocimetry (MPDV) system, which won an R&D 100 Award in 2012.

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