Intracoronary radiation therapy prevents the arteries from re-narrowing. Physicians use it to treat certain types of blockages in the coronary arteries, which may have narrowed due to an overgrowth of scar tissue at an angioplasty site.
Small doses of radiation therapy are directly applied to the angioplasty site to slow down or stop rapid scar tissue growth. Your doctor may deliver radiation treatment to the angioplasty site using a wire, balloon, or catheter. He or she inserts one of those devices into the newly opened artery for five to 25 minutes to administer the radiation therapy. You may be eligible for the radiation therapy procedure if a re-narrowing has occurred within a previously implanted stent.
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