Table 3.
Details of DCNN model and false positive images of endoscopists.
| Internal test set | External test set | |||
|---|---|---|---|---|
| Cause | DCNN, n (%) | Endoscopists, Total n | DCNN,n | Endoscopists, Total n |
| (%) | (%) | (%) | ||
| Total number | 75 | 280 | 24 | 162 |
| Gastritis (redness, atrophy, intestinal metaplasia) | 33 (44) | 166 (59.29) | 15 (62.5) | 111 (68.52) |
| Mucus | 8 (10.67) | 2 (0.71) | 1 (4.17) | 4 (2.47) |
| Fold | 7 (9.33) | 11 (3.93) | 0 (0) | 7 (4.32) |
| Foam | 7 (9.33) | 4 (1.43) | 1 (4.17) | 0 (0) |
| Halation | 5 (6.67) | 5 (1.79) | 0 (0) | 0 (0) |
| Blood | 4 (5.33) | 8 (2.86) | 2 (8.33) | 4 (2.47) |
| blood vessel | 4 (5.33) | 0 (0) | 0 (0) | 0 (0) |
| Ulcer | 3 (4) | 32 (11.43) | 3 (12.5) | 30 (18.52) |
| Xanthoma | 2 (2.67) | 11(3.93) | 1 (4.17) | 3 (1.85) |
| Normal anatomical structure (cardia, pylorus, angulus) | 1 (1.33) | 0 (0) | 0 (0) | 0 (0) |
| Hyperplastic polyp | 1 (1.33) | 30(10.71) | 0 (0) | 2 (1.23) |
| Scar | 0 (0) | 11(3.93) | 1 (4.17) | 1 (0.62) |