MAPT and amyloidosis: In early amyloidosis stage, lower CSF Aβ42/Aβ40 was significantly associated with higher FTP SUVR in the left entorhinal cortex (Fig. 5A), higher Aβ PET Centiloid was significantly related to higher FTP SUVRs in right insula and bilateral cingulate cortex, paracentral, frontal and parietal cortices (Fig. 5C), and CSF p-Tau/Aβ40 showed significant positive association with FTP SUVRs in left entorhinal, parahippocampal, fusiform, inferior temporal, middle temporal and BANKSSTS (Fig. 5E).