The EPIQ System was used successfully to provide ultrasound images of the lower extremity arteries to measure peak systolic velocity (PSV) before and after endovascular intervention.After endovascular intervention, ultrasound-derived PSV can supplement angle-brachial index (ABI) as an objective performance measure in patients with and in particular without compressible tibial arteries.The EPIQ System was used successfully for color duplex ultrasound (CDU) and CEUS.