The mean diffusion propagator model revealed cortical microstructural changes associated with both amyloid-β and tau pathology and astroglial activation
Background: Markers of downstream events are a key component of clinical trials of disease-modifying therapies for Alzheimer’s disease (AD). Morphometric metrics like cortical thickness are established measures of atrophy but are not sensitive enough to detect Aβ-related changes that occur before overt atrophy become visible. We aimed to investigate to what extent diffusion MRI can provide sensiti