Figure 6.

Uptake of [¹⁸F]SPA-RQ in (a) GP and b) rat brain. The numbered (1–4) bars (on the left) indicate the position from where the four brain slices shown at right were cut. The regional biodistribution of [¹⁸F]SPA-RQ in coronal slices of the GP brain at 180 min post injection is shown on the upper right (AMY = amygdala, BS = brainstem, CERE = cerebellum CPu = caudate-putamen, CTX = cortex, HIP = hippocampus, HYP = hypothalamus, NuAcc = nucleus accumbens and THAL = thalamus). The regional biodistribution of [¹⁸F]SPA-RQ in coronal slices of the rat brain at 60 min post injection is shown on the lower right (LV = lateral ventricle, 3^rd V = 3^rd ventricle, 4^th V = 4^th ventricle).