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18F-fluorordeoxyglucose PET images from a 72-year-old woman with left putaminal hemorrhage studied 26 hours (top left), 2.2 days (top center), and 4.9 days (top right) after onset. Images are normalized to mean activity in the initial scan. Bottom row shows initial CT (left) and the subtraction image of the first two PET studies superimposed on the CT, demonstrating the region of increased glucose metabolism adjacent to the hematoma.
