Figure 4.
Representation of the extracted mean regional MRI and PET Z-scores in cerebral regions where atrophy exceeded hypometabolism in patients with Parkinson’s disease with mild cognitive impairment (PD-MCI) and patients with Parkinson’s disease with dementia (PDD). On the y- axis, negative values corresponds to higher FDG uptake (white) in patients than in controls and positive values denote reduced FDG uptake. For grey matter volume (grey), positive values indicate reduced grey matter volume and negative values indicate increased grey matter volume. Error bars represent 95% confidence intervals.