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Oregon State Nuclear Engineers Solve Looming Medical Isotope Shortage

When John Nuslein began experiencing chest pain, he contacted his doctor and underwent a round of tests. But the standard electrocardiogram and cardiac treadmill were inconclusive. It took a nuclear medicine stress test — a procedure in which a radioactive substance is injected into a vein — to visualize two blocked arteries in his heart. Since then, the 66-year-old man from Albany, Oregon, has undergone multiple heart procedures.