A duplex ultrasound is often a non-invasive technique of detecting and quantifying the narrowing and blockage in the blood vessels. It truly is performed by a experienced sonographer and is verified by a Radiologist. It's really a painless process done on a couch and usually normally takes one-two several hours. https://sgvasculargrp.com/medical-condition/peripheral-arterial-disease/icon-peripheral-arterial-disease-pad-2-3/