MRI (A, D, G, J, M, P), PET distribution of 11C‐PE2I binding (B, E, H, K, N, Q), and co‐registered MRI/PET BP (C, F, I, L, O, R) images in the cat brain at different anatomical levels in the coronal (A–C, J–L), sagittal (D–F, M–O), and horizontal (G–I, P–R) planes. PET data were obtained from the sum of eleven scans performed in three cats (74 MBq of 11C‐PE2I, anesthetized with isoflurane). Pseudocolor scales range from 0 to 2000 nCi/cc and 0.5–7 in Q and R, respectively.