SOVEREIGN, ISM / SCIENCE PHOTO LIBRARY SOVEREIGN, ISM / SCIENCE PHOTO LIBRARY
Stent in the abdominal aorta. X-ray of a stent that has been used to treat an aneurysm of the abdominal aorta and the iliac arteries. This frontal view is of the bottom end of the aorta, the body's main artery, where it divides into the iliac arteries (lower centre) that supply the legs. The stent is a double-woven wire mesh, seen here as a criss-cross pattern. The spine is seen behind the aorta. An aneurysm is a weakening of the walls of a blood vessel, leading to swelling and rupture. In the aorta, such rupturing would be swiftly fatal. The stent has been implanted to strengthen the walls of the arteries.
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