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The yellow is the color flow doppler representing the velocity and direction of blood flow in the heart. Usually the brighter colors represent higher velocities of blood flow.
Echocardiography, transthoracic, real-time with image documentation (2D), includes M-mode recording, when performed, complete, with spectral Doppler echocardiography, and with color flow Doppler echocardiography.
Color enhancement is particularly useful in Doppler imaging, where shades of red signify flow away from the transducer and shades of blue signify flow toward it.
Echocardiography, transthoracic, real-time with image documentation (2D), includes M-mode recording, when performed, complete, with spectral Doppler echocardiography, and with color flow Doppler echocardiography.
A Doppler image can be taken of any bodily organ or even of an unborn baby if needed. The color flow image means that instead of being in black and white the image will show up in color.
CPT Code 93306-26: Echocardiography, transthoracic, real-time with image documentation (2D), includes M-mode recording, when performed, complete, with spectral Doppler echocardiography, and with color flow Doppler echocardiography
The newest addition to this test is the addition of color. Adding color to the image shows the direction and rate of blood flow more clearly.
Nirav Shah has written: 'Development of a two-dimensional flow phantom for color doppler systems'
An echocardiogram can take anywhere from 30-60 minutes depending on why you are having the test. It is a painless (non-invasive) procedure. You will lay in different positions while a technician moves a wand type sensor (transducer) over your skin that sends out sound waves which are sent back and displaced on the screen they are watching (in real time) while performing the echo. They record these images, take measurements, and record blood flow (color doppler) of the chambers and valves of the heart.
Doppler ultrasonography uses what is called the Doppler effect to measure the rate and direction of blood flow in the vessels.
Transcranial Doppler ultrasonography is a noninvasive method of analyzing blood flow in the brain.
It's the measure of flow.