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Dr. Corey Tiegen, an interventional radiologist, holds an older stent graft Monday, Aug. 27, 2012, at Sanford Health in Fargo, N.D., that is currently used to repair aneurisms of the aorta. His new stent, not seen here, fits in a line half the diameter of current stents to expand the number of people who can be treated and speed their recovery. Michael Vosburg / Forum Photo Editor

Fargo doctor develops new stent graft to fix aneurysms

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FARGO -- Arlene Olson had a bulge in the aortic artery inside her abdomen that was a ticking time bomb waiting to explode.

Not long ago, because of the small size of her artery, Olson, 87, would have required open surgery to repair the aneurysm that, if untreated, would eventually rupture and end her life.

At her age, not all patients survive such surgery.

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