Angiogram. This is certainly an X-ray from the arteries and veins to locate blockage or narrowing. This technique is done by putting a thin, flexible tube into an artery within the leg and injecting a contrast dye. The distinction dye helps make the arteries and veins obvious within the X-ray. Atherosclerosis. https://how-to-prevent-gangrene54207.goabroadblog.com/33213908/the-5-second-trick-for-how-to-prevent-gangrene