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- Carotid
Duplex
This procedure uses
ultrasound (high-frequency sound waves that echo off the body). The
echo is registered with devices that project a 2-dimensional image showing
the carotid artery walls and their lumen (interior).This test also looks
at the rate the blood flows through the carotid artery (in the neck),
which supplies blood to the brain. The test can detect atherosclerotic
plaque and blood clots.No patient preparation is required. No needles
or injections are involved. The test generally takes about 30 minutes
to perform.
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