| MRI | Magnetic Resonance Imaging |
| MRI-ASL | MRI-Arterial Spin Labeling |
| FDG-PET | Fluorodeoxyglucose Positron-Emission Tomography |
| FTD | Frontotemporal Dementia |
| HC | Healthy Control |
| Aß | Amyloid Beta |
| PD | Parkinson’s Disease |
| DLB | Dementia with Lewy Bodies |
| CSF | Cerebrospinal Fluid |
| P-tau181 | Phosphorylated Tau at position 181 |
| AD | Alzheimer’s Disease |
| MCI | Mild Cognitive Impairment |
| TOF-MRI | Time-of-Flight MRI |
| DTI | Diffusion Tensor Imaging |
| LBD | Lewy Body Dementia |
| CI | Cognitive Impairment |
| eAD | Early Alzheimer’s Disease |
| bvFTD | Behavioral variant Frontotemporal Dementia |
| preAD | Pre-Alzheimer’s Disease |
| DKI | Diffusional Kurtosis Imaging |
| AWF | Axonal Water Fraction |
| CBD | Corticobasal Degeneration |
| FTLD/PPA | Frontotemporal Lobar Degeneration/Primary Progressive Aphasia |
| FC | Functional Connectivity |
| PCA | Posterior Cortical Atrophy |
| SD | Semantic Dementia |
| aMCI | Amnestic Mild Cognitive Impairment |
| SCD | Subjective Cognitive Decline |
| BOLD-FC | Blood Oxygen Level-Dependent Functional Connectivity |
| MMSE | Mini-Mental State Examination |
| NPH | Normal Pressure Hydrocephalus |
| RS-fMRI | Resting-State Functional MRI |
| SUVR | Standardized Uptake Value Ratio |
| EOFAD | Early Onset Familial Alzheimer’s Disease |
| PD-MCI | Parkinson’s Disease with Mild Cognitive Impairment |
| FCSRT | Free and Cued Selective Reminding Test |
| R-MEG | Resting-State Magnetoencephalography |
| FAD | Familial Alzheimer’s Disease |
| WMHV | White Matter Hyperintensity Volume |
| ALS | Amyotrophic Lateral Sclerosis |