MIRIAM MASLO / SCIENCE PHOTO LIBRARY MIRIAM MASLO / SCIENCE PHOTO LIBRARY
Iliac artery angioplasty. Coloured angiogram of an iliac artery with a balloon catheter (line running from lower left to upper centre). An angioplasty is a surgical procedure where a stent (wire mesh, not seen) is inserted into a narrowed (stenosed) artery to widen it. The balloon region of the catheter (upper left) is used to expand the stent that will hold the artery open.
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