Fig. 1From: Diffusion imaging changes in grey matter in Alzheimer’s disease: a potential marker of early neurodegenerationCoronal view of a T1-weighted magnetic resonance image of the brain (left image); magnified area of cortex, with the black arrow indicating the cortical thickness (center); on the right is a schematic representation of a magnified region of cortex, with water molecules diffusing within the cells, dependent on the integrity of the cell structureBack to article page