Fig. 3: Preclinical study results.

A [18F]FPEB SUV (mean ± SD) after test–retest and NAc challenge in six relevant regions of interest. B Illustrations of averaged [18F]FPEB SUV images after test and NAc challenge and VOI templates (PMOD) overlaid with [18F]FPEB template. C SUVr calculated with the cerebellum as the reference region and absolute ΔSUVR for test, retest, and NAc challenge in [18F]FPEB small animal PET (n = 9).