Kinetic properties of 18F-mefway in vivo. A shows 18F-mefway target/cerebellum ratios. B illustrates Logan plots, with t*=45 minutes, to visualize pseudoequilibrium of the tracer in various regions of the brain. Regions shown include focal areas of uptake in the mesial temporal lobe (MTL, ); hippocampus (Hp, ); anterior cingulate gyrus (aCG, ); raphe nuclei (RN, ); and occipital cortex (OC, ).