Of all the tau PET tracers, 18F-T807 (also known as 18F-AV-1451, 18F-flortaucipir, or TAUVID) is the most widely applied in patients with neurodegenerative diseases and has been the first tau PET tracer approved by the U.S. Food and Drug Administration (Okamura et al., 2014a; Barthel, 2020; Fleisher et al., 2020). This evidence concerns the gene MAPT and neurodegenerative disease.