Ankle Brachial Index

         Basic Facts

  • Pulse volume recording (PVR) is part of a simple, painless, noninvasive test that measures blood flow within blood vessels (arteries) in the legs or arms. 
  • The measurements obtained from PVRs are used in combination with other tests, such as segmental pressure measurements, Doppler waveform analysis, and duplex ultrasound, to help locate blockages in the arteries.
  • If PVRs suggest that a patient has a blockage in one or more arteries, a physician may order additional tests, such as a CT angiography or a magnetic resonance angiography, to confirm a diagnosis of peripheral arterial disease and design a treatment plan.
ankle brachial index
Pulse volume recording, also known as plethysmography, is a noninvasive test that measures blood flow within the blood vessels, or arteries. Its purpose is to help locate blockages in the arteries. Physicians usually perform pulse volume recording on the legs to help diagnose leg artery disease. However, pulse volume recording may also be used in patients with suspected arm artery disease, thoracic outlet syndrome, or spasms of the finger arteries (Raynaud's disease)

Ankle Brachial Index FAQ