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Doppler Sonography for Atherosclerosis
Doppler Ultrasound
A Doppler ultrasound is a non-invasive test that can depict blood flow by bouncing high-frequency sound waves off of red blood cells to create images of blood vessels, tissues, and organs. Faintness or absence of sound may indicate an obstruction in the blood flow.
The amount of blood pumped with each beat is an indication of the size of a vessel's opening. Also, Doppler ultrasound can detect abnormal blood flow within a vessel, which can indicate a blockage caused by a blood clot, a plaque, or inflammation.
Clinical Trials
Clinical trials are research studies that evaluate a new medical approach, device, drug, or other treatment. As a Stanford Health Care patient, you may have access to the latest, advanced clinical trials.
Open trials refer to studies currently accepting participants. Closed trials are not currently enrolling, but may open in the future.