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Narrowing in the arteries of the legs can cause peripheral artery disease, limiting the blood flow to legs and feet. This restriction in blood flow can cause non-healing sores, pain in the legs while walking, and, in some cases, amputation.

PET, or positron emission tomography, uses higher energy isotopes to achieve a better image of the heart than the standard nuclear camera. Although PET scanners have been used for brain studies and oncology, they’ve fairly new to cardiology.