MAPT and Alzheimer disease: Studies have suggested that tau PET brain images readily matched the distribution of tau deposits reported from histopathological studies, brain atrophy, hypometabolism, and overall severity of AD [13] and may be better than cerebrospinal fluid amyloid‐beta (CSF Aβ), amyloid‐PET and MRI in AD prognosis (e.g. [14, 15]).