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Representative coronal PET images of (a) [18F]FDG and (b) (R)-[11C]PK11195 in arthritic rats group A (6 d). Uptake of both tracers is clearly shown in the right arthritic knee (arrow) compared with the contralateral knee (arrowhead). (c) PET images of [18F]FDG uptake in arthritic rats, original model (left) and group A (6 d) (right).
