A duplex ultrasound is a non-invasive approach to detecting and quantifying the narrowing and blockage while in the blood vessels. It's executed by a experienced sonographer and is also verified by a Radiologist. It's really a painless course of action carried out on the sofa and typically takes 1-two hours. https://sgvasculargrp.com/medical-condition/peripheral-arterial-disease/icon-peripheral-arterial-disease-pad-2-3/