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[11C]KP23 PET images of a rat brain superimposed on an MRI template . A: From left, axial, sagittal and coronal sections. In the last coronal image, regions of interest are encircled and used for TAC analysis shown in B. a, cortex; b, cerebellum; c, caudate putamen; d, hippocampus. Images are averaged from 2–60 min p.i. B TACs of rat brain regions of [11C]KP23.
