We used quantitative multimodal MRI to investigate the region-specific damage in progressive supranuclear palsy (PSP) in order to generate a precise in-vivo model of neurodegeneration at various levels of the central nervous system. Additionally, we aimed to test the markers for differentiating the PSP from Parkinson disease (PD) patients and from healthy subjects. PSP patients showed extensive volume decrease and microstructural diffusion changes in the brainstem and the basal ganglia in agreement with previous pathological studies. These results suggest the possibility of direct non-invasive assessment of brain damage in PSP even in small brainstem nuclei.
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