= Doppler ultrasonography
{wiki=Doppler_ultrasonography}
Doppler ultrasonography, often simply referred to as Doppler ultrasound, is a medical imaging technique that uses high-frequency sound waves to assess the flow of blood within the body. This technique leverages the Doppler effect, which is the change in frequency or wavelength of sound waves in relation to an observer moving relative to the source of the sound. In Doppler ultrasonography, sound waves are emitted towards moving blood cells.
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