Our primary objective was to generate a precise in vivo model of neurodegeneration of brainstem nuclei, cerebellum, basal ganglia, basal forebrain, and cortex using multimodal MRI in progressive supranuclear palsy (PSP). Secondary objective was to use multimodal imaging biomarkers to efficiently differentiate PSP from Parkinson disease (PD) patients and healthy control subjects (HC). Multiple factorial analyses of the regional damage allowed to efficiently differentiate PSP from HC and PD, in agreement with previous pathological studies. These results suggest the possibility of direct non-invasive assessment of brain damage at multiple level of the central nervous system in PSP and efficient multimodal multiregional based differential diagnosis between PSP and PD patients
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