A study presented at a radiology meeting found that the mean maximum standardized uptake value with carbon-11 methionine-PET/CT and FDG-PET/CT varied significantly between typical adenomas and normal glands and between atypical and typical adenomas. The findings indicate that both imaging methods can yield useful data to diagnose pituitary adenomas and help predict the likelihood of atypical adenoma prior to surgery. Another study presented at the same meeting found that MET-PET/CT had a higher sensitivity and accuracy than FDG-PET/CT in detecting multiple myeloma lesions, but the two methods had the same specificity. MET-PET/CT can be helpful in cases when FDG-PET/CT results come out as inconclusive or negative, researchers said.
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