Flow charts showing the categorization of ADNI subjects with AD using the strict NIA-AA criteria (A) and Mayo-modified NIA-AA criteria (B). Abbreviations: AD, Alzheimer’s disease; ADNI, Alzheimer’s Disease Neuroimaging Initiative; FDG, fluorodeoxyglucose; MRI, magnetic resonance imaging; NIA-AA-C, National Institute on Aging-Alzheimer’s Association clinical diagnostic guidelines. From Lowe et al [354].