A peripheral angiogram is a test that uses X-rays and dye to find narrowed or blocked areas in one or more arteries that supply blood to your legs. 

After access is established, catheters (thin tubes) and wires are threaded through the arterial system to a specific area of interest or throughout the entire body. As a contrast agent is injected and X-ray images are taken to let your doctor view the blood flow and identify abnormalities.

Why Peripheral Angiogram is Needed

Peripheral angiogram is used when there is reason to believe that blood is not flowing well in the arteries leading to your legs or, in rare cases, to your arms. The angiogram helps if a surgical procedure, peripheral angioplasty, is needed to open the blocked arteries.