Blood Flow Studies
Alternate Names : Duplex/Doppler Ultrasound
DefinitionBlood flow studies measure blood flow and pressure. A duplex study uses Doppler ultrasound to estimate blood flow through arteries or veins. Plethysmography measures changes in blood volume in a blood vessel.
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Why is the Test Performed?
These are noninvasive (external) tests used to determine if there is significant disease in either arteries or veins, if adequate blood is reaching an extremity, to evaluate trauma to a blood vessel, or to monitor patients with arterial reconstruction or grafts. These tests can also detect blood clots.
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