ve had bypass surgery. I have no idea why this makes a
difference, but apparently it does. However, he used my left thigh this time, one not used before. He looked at my circumflex but it looked clear and nothing seemed to be showing as a blockage. He called in my Consultant who made the claim after looking at the images, and he took over the procedure. He used an FFR device and took a baseline measurement at the top of the Circumflex, which read 0.8. He said, if it drops to .