Fig. 1. Ankle-brachial index (ABI) and pulse volume recording. (A) The ABI is calculated by dividing the higher of the posterior tibial and dorsalis pedis artery systolic blood pressures in a given limb by the higher of the brachial artery systolic blood pressures obtained from either arm. (B) In patients with noncompressible vessels due to calcification, an accurate ABI cannot be obtained.

J Surg Ultrasound 2021;8:25-31 https://doi.org/10.46268/jsu.2021.8.2.25

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