A study that uses high-frequency sound waves for detection of blood flow within the vessels is called

Question

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Doppler ultrasound is a diagnostic procedure that uses high-frequency sound waves to produce images of blood flow within the vessels. It is commonly used to evaluate blood flow in the arteries and veins of the neck, arms, legs, and abdomen. This technique is based on the Doppler effect, which is the change in frequency or wavelength of waves that occurs when an object is moving relative to the observer.

A Study That Uses High-Frequency Sound Waves for Detection of Blood