ZEPHYR / SCIENCE PHOTO LIBRARY ZEPHYR / SCIENCE PHOTO LIBRARY
Coloured X-ray angiography (front view) of the abdomen in a patient, showing a catheter with stent being inserted into the abdominal aorta to treat narrowing (stenosis) of this artery due to atherosclerosis. This arterial stent (endoprosthesis) is a wire mesh tube which holds the artery open and restores normal blood flow.
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