Definition:
This test uses ultrasound to examine the blood flow in the major arteries and veins in the arms and legs.
Alternative Names:
How the test is performed:
The test is done in the ultrasound or radiology department or in a peripheral vascular lab. To examine the veins: A water-soluble gel is placed on a handheld device called a transducer, which directs the high-frequency sound waves to the artery or veins being tested. To examine the arteries: Blood pressure cuffs may be put around different parts of the body, including the thigh, calf, ankle, and different points along the arm. A paste is applied to the skin over the arteries being examined. Images are created as the transducer is moved over each area.
How to prepare for the test:
You will need to remove clothing from the arm or leg being examined.
How the test will feel:
There is little or no discomfort associated with this test.
Why the test is performed:
This test is done as an alternative to arteriography and venography. It may help diagnose: The test may also be used to evaluate injury to the arteries and to monitor arterial reconstruction and bypass grafts.
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