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Sheila Lange led an active, healthy lifestyle until one day last October. That's when one of her three main coronary arteries became clogged with cholesterol.

Twice, doctors tried a procedure known as angioplasty. Once, they used a rotoblator to scrape scar tissue out of the artery.

There were two options: Open-heart surgery, requiring a week in the hospital and up to six weeks recuperating; or experimental radiation that did not require surgery.

They performed the latter Thursday, inserting tiny radioactive pellets into the blocked artery to inhibit the growth of new scar tissue.

They won't know if the procedure works until they X-ray her heart in six months.

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