FIGURE 4.  Time–activity data for ¹¹C-BF-227 PET in humans. SUV time–activity curves of ¹¹C-BF-227 in frontal cortex (A), temporal cortex (B), parietal cortex (C), and cerebellum (D) are shown. Each point represents mean ± SEM of data from 7 AD patients and 7 normal control subjects.