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- W2014754992 abstract "In the Caribbean island of Guadeloupe, patients with atypical parkinsonism develop a progressive supranuclear palsy-like syndrome, named Guadeloupean parkinsonism. Unlike the classical forms of progressive supranuclear palsy, they develop hallucinations and myoclonus. As lesions associated with Guadeloupean parkinsonism are poorly characterized, it is not known to what extent they differ from progressive supranuclear palsy. The aim of the present study was to determine the structural and metabolic profiles of Guadeloupean parkinsonism compared with progressive supranuclear palsy and controls using combined structural and diffusion magnetic resonance imaging and magnetic resonance spectroscopy. We included 9 patients with Guadeloupean parkinsonism, 10 with progressive supranuclear palsy and 9 age-matched controls. Magnetic resonance imaging examination was performed at 1.5 T and included 3D T1-weighted and fluid-attenuated inversion recovery images, diffusion tensor imaging and single voxel magnetic resonance spectroscopy in the lenticular nucleus. Images were analysed using voxel-based morphometry, voxel-based diffusion tensor imaging and brainstem region of interest measurements. In patients with Guadeloupean parkinsonism, structural and diffusion changes predominated in the temporal and occipital lobes, the limbic areas (medial temporal, orbitofrontal and cingulate cortices) and the cerebellum. In contrast to patients with progressive supranuclear palsy, structural changes predominated in the midbrain and the basal ganglia and diffusion abnormalities predominated in the frontocentral white matter, the basal ganglia and the brainstem. Compared with controls, the N-acetylaspartate to creatinine ratio was decreased in patients with progressive supranuclear palsy and to a lesser extent in patients with Guadeloupean parkinsonism. The pattern of structural and diffusion abnormalities differed between progressive supranuclear palsy and Guadeloupean parkinsonism. Widespread cortical atrophy was observed in patients with Guadeloupean parkinsonism who presented marked cognitive changes and hallucinations, whereas midbrain lesions were less severe than in progressive supranuclear palsy. Midbrain (progressive supranuclear palsy) or cortical (Guadeloupean parkinsonism) atrophy was a distinctive neuroimaging feature for differential diagnosis." @default.
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- W2014754992 date "2010-07-26" @default.
- W2014754992 modified "2023-10-17" @default.
- W2014754992 title "Magnetic resonance imaging lesion pattern in Guadeloupean parkinsonism is distinct from progressive supranuclear palsy" @default.
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- W2014754992 doi "https://doi.org/10.1093/brain/awq162" @default.
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