Prospective study of 11C–methionine PET for distinguishing between recurrent brain metastases and radiation necrosis: Limitations of diagnostic accuracy and long-term results of salvage treatment

On conventional diagnostic imaging, the features of radiation necrosis (RN) are similar to those of local recurrence (LR) of brain metastases (BM). 11C–methionine positron emission tomography (MET-PET) is reportedly useful for making a differential diagnosis between LR and RN. | Prospective study of 11C methionine PET for distinguishing between recurrent brain metastases and radiation necrosis Limitations of diagnostic accuracy and long-term results of salvage treatment

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