- The following measurements known as representative parameters of dementia progress will be included. 1) clinical characteristics, 2) neuropsychological test, 3) structural and functional magnetic resonance image (MRI), 4) Fludeoxyglucose (FDG)-positron emission tomography (PET), 5) amyloid PET (18F-flutemetamol), 6) cerebrospinal fluid (CSF) and blood sample, 7) genetic analysis.