Sarah Lewis, PharmD

What is angiography?

Angiography is an imaging test that makes a detailed picture (called an angiogram) of blood vessels. Angiography makes images of arteries and veins in the abdomen, brain, heart, kidneys, lungs and legs. 

Angiography shows blood flow and blood vessels that are obstructed, blocked, narrowed, enlarged or malformed. Doctors use angiography to diagnose diseases and abnormalities of the blood vessels, including atherosclerosis, blood clots, aneurysm, and coronary artery disease.

Your body has two types of blood vessels, the arteries and veins. When angiography examines arteries, the picture is called an arteriogram. When veins are examined, the picture is called a venogram.

An angiography is only one method used to test for blood vessels diseases and conditions. You may have less invasive testing options. Dis