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Vascular ultrasound imaging uses sound waves to evaluate the thickness of your blood vessel walls and determine if you have plaque buildup. Images sent to a computer may show blockages or narrowing in your arteries.


A specialists may scan your arms and legs for blood clots or blockages using a small hand-held transducer that collects sounds that bounce back and create computer pictures. Your physician may also suggest a minimally invasive Doppler ultrasound that uses a tiny tube, or catheter, to monitor your blood flow through a major blood vessel.