Angiography What You Need To Know Angiography is a minimally invasive diagnostic procedure used to visualise the inside of blood vessels. It is often used to identify blockages or narrowings in arteries that may be causing reduced blood flow to organs or tissues. In some cases, angiography can also be used to guide interventional procedures such as angioplasty or stenting.
During an angiogram, a catheter (a small, thin tube) is inserted into an artery through a small incision in the skin. X-ray contrast dye is then injected through the catheter into the vessel being studied. The dye makes the blood vessels visible on X-ray images. By looking at these images, your doctor can determine if there are any blockages or narrowed areas present.