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Disease Information : PAD : Diagnosis : PVR Waveform Analysis

PVR Waveform Analysis

The doctor or non-invasive vascular laboratory may perform blood flow waveform analysis. The Pulse Volume Recording (PVR) method measures blood volume changes that occur in your legs.

How is the test given?

Using cuffs similar to those involved in segmental pressure testing, PVR cuffs are inflated, but only a little. Instead of temporarily stopping the blood flow to determine your blood pressure, the PVR cuff allows the blood to continue flowing through your leg. As blood pulses through your arteries, your blood vessels expand causing an increase or decrease in the volume of air within the cuff.

A recording device displays these pulse volume changes as a waveform. The shape of the waveform gives the doctor useful information about the blood flow in your legs. This test often is more informative for patients with diabetes or whose arteries have become stiff and hard to compress due to calcification.

Peripheral Arterial Disease section was last modified: December 21, 2010 - 06:12 pm

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