[MRI in Neurodegenerative Diseases].

According to the German S3 guideline dementia every patient with a dementia disorder should have a MRI. The goal is not only to uncover treatable conditions but also to detect region-specific atrophy pattern which are characteristic of primary dementia disorders such as Alzheimer's disease, fronto-temporal lobar degeneration and others. Diagnostic accuracy can be improved by Voxel- and Region-based volumetric analysis of the individual brain compared to age-matched controls. © Georg Thieme Verlag KG Stuttgart · New York.