MRI markers of neurodegenerative neuropathology Lead Investigator: Bradford Dickerson Institution : Massachusetts ADRC E-Mail : brad.dickerson@mgh.harvard.edu Proposal ID : 946 Proposal Description: To test the hypothesis that MRI patterns of atrophy are predictive of specific neurodegenerative pathologies. We will use pre-specified regions of interest representing the ?AD signature? and the ?FTLD signature? to try to predict which of the two major classes of pathology each symptomatic patient is likely to have. We will test this hypothesis, generated using independent data from MGH and Penn, in NACC data not including data from MGH or Penn