A thin wire is then threaded through the catheter and positioned from the coronary artery. More than this wire, the balloon catheter is pushed in the artery as well as balloon is positioned about the region of narrowing. This is the painless non-invasive examination accustomed to evaluate the oxygen volume https://sgvasculargrp.com/medical-condition/peripheral-arterial-disease/icon-peripheral-arterial-disease-pad-2-3/