by bouncing ultrasound off the flow in blood vessels you can tell how the flow is in that region; can determine if significant blockage is present.
Doppler ultrasonography can detect the direction, velocity, and turbulence of blood flow. It is frequently used to detect problems with heart valves or to measure blood flow through the arteries.
duplex ultrasound
duplex ultrasound
This technique is a form of Doppler measurement referred to as Blood Flow Imaging (BFI). It can indicate blood flow directionally in addition to measuring velocity.
A Doppler ultrasound is used to measure the speed of blood flow in the body. This non-invasive imaging technique uses sound waves to detect movement and produce pictures of blood vessels and the flow of blood within them.
I think you are talking about a Doppler ultrasound. The direction of blood flow is assigned the color red and blue, basically it indicates that the blood is flowing toward or away from the ultrasound transducer, respectively.
After an ultrasound of my left arm ( for blood clot) .I wwas told that the blood flow is retrograde.I just underwent aortc vavle transplant.this being my third.the mitral and tricuspid. does retrograde blood flow mean
True!
In the context of the fetal heart, Doppler refers to a technique used in ultrasound to assess blood flow in the umbilical cord and fetal vessels. It helps monitor the well-being of the fetus by examining the velocity and direction of blood flow.
A Doppler ultrasound is a test that allows your doctor evaluate blood flow through major arteries and veins using reflected sound waves. Different blood flow patterns emit different sounds that can be used to proved graphs and pictures of blood flow.
It uses ultrasound waves that is reflected off objects within your body to create a picture. A variation on a theme is a Doppler echo that uses the same ultrasound waves to measure rate of flow, for example blood flow through an artery.
A Transcranial Doppler is a test used to test blood flow velocity as is flows through the brains blood vessels. Through emitting a high pitched sound, an ultrasound probe is able to measure the velocity of the blood flow.