An aortic aneurysm is a weak area in the aorta, the main blood vessel that carries blood from the heart to the rest of the body. As blood flows through the aorta, the weak area bulges like a balloon and can burst if the balloon gets too big. Interventional radiologists are vascular experts who offer minimally invasive treatment for abdominal aortic aneurysm. This minimally invasive technique is performed by an interventional radiologist using imaging to guide the catheter and graft inside the patient’s artery. For the procedure, an incision is made in the skin at the groin through which a catheter is passed into the femoral artery and directed to the aortic aneurysm. Through the catheter, the physician passes a stent graft that is compressed into a small diameter within the catheter. The stent graft is advanced to the aneurysm, then opened, creating new walls in the blood vessel through which blood flows.

Information provided by the Society of Interventional Radiology, www.SIRweb.org © 2004, 2008