Table 4:
Database, data amount, and modalities in the included studies.
| Database | Data modalities | Data amount | |||||
|---|---|---|---|---|---|---|---|
| Study | Training | Testing | Input | Output | 2D/3D | Training | Testing |
| Islam and Zhang (2020) | Noise | PET | 2D | HC: 105 MCI: 208 AD: 98 | |||
| Bowles et al. (2018) | MRI | MRI | 2D | Total: 1000+ | |||
| Baumgartner et al. (2018) | MRI | MRI | 3D | Total: 1081 | Total: 207 | ||
| Yan et al. (2018) | ADNI | MRI | PET | 3D | pMCI: 29 | pMCI: 21 | |
| Pan et al. (2018) | MRI | PET | 3D | HC: 229 pMCI: 167 sMCI: 226 AD: 199 | HC: 200 pMCI: 38 sMCI: 239 AD: 159 | ||
| Oh et al. (2020) | PET | PET | 2D | Total: 173 | Total: 19 | ||
| Choi et al.(2018) | PET | MRI | 2D | HC: 49 MCI: 80 AD: 34 | HC: 36 MCI: 41 AD: 21 | ||
| Wegmayr et al. (2019) | ADNI and AIBL | MRI | MRI | 2D | HC: 4859 pMCI: 178 sMCI: 232 AD: 700 | ||
| Kang et al. (2020) | Noise | PET | 3D | HC: 62 MCI: 99 AD: 137 | |||
| Shi et al. (2019) | MRI | MRI | 3D | HC: 21 MCI: 4 AD: 7 | |||
| Ouyang et al. (2019) | Clinical cases | PET | PET | 2D | Total: 39 | ||
| Wang et al. (2018) | PET | PET | 3D | HC: 8 MCI: 8 | |||
| Kang et al. (2018) | PET | PET | 3D | HC: 338 MCI: 117 AD: 72 | HC: 97 MCI: 37 AD: 20 | ||
| Wang et al. (2019) | MRI + PET | PET | 3D | HC: 8 MCI: 9 | |||
| Kim et al. (2020) | ADNI | Clinical cases | PET | PET | 2D | HC: 347 AD: 139 | HC: 68 AD: 73 |
Note: AIBL, The Australian Imaging, Biomarker and Lifestyle Flagship Study of Aging.