| Ref. | Method | Database | ACC % |
| [ 26 ] | —CNN | LIDC | 88.5 |
| [ 27 ] | CNN | LIDC | 89.4 |
| [ 28 ] | CNN | LIDC | 77 |
| [ 29 ] | CNN | LIDC | 90 |
| [ 30 ] | CNN | LUNA 16 | 90.6 |