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A Doppler ultrasound is a noninvasive test that can be used to estimate the blood flow through your blood vessels by bouncing high-frequency sound waves (ultrasound) off circulating red blood cells. A regular ultrasound uses sound waves to produce images, but can't show blood flow. A Doppler ultrasound may help...What is a pulse wave Doppler?
Pulsed Wave Doppler (PW) PW Doppler is a type of spectral Doppler that gives us, the user, an option to measure blood flow velocities at a very specific location, or in a given sample. The specific area in which the velocity of the blood flow is measured is called the “sample volume” or “range gate”.How long do ultrasound results take?
The test itself takes 15-30 minutes to perform. The timing of the result depends on who interprets the findings (radiology technician, radiologist, vascular medicine physician, etc). Generally speaking the result should be available within several hours but can take up to a day.