Table 1 Clinicopathological characteristics of lesions in the validation set.
Still image | Video image | |
|---|---|---|
Number of images or videos validated | 4,840 images | 77 videos |
Number of endoscopists, n | 15 | 14 |
Number of lesions (images or videos) | 752 (702) | 56 (45) |
Location of lesions | ||
Right-sided colon | 351 (47%) | 33 (59%) |
Left-sided colon | 254 (34%) | 20 (36%) |
Rectum | 147 (19%) | 3 (5%) |
Size of lesions, mm, median, IQR | 5 (4–10) | 4 (3–5) |
Morphological type, n (%) | ||
Polypoid | 638 (85%) | 12 (21%) |
Slightly elevated and depressed | 114 (15%) | 44 (79%) |
Pathological diagnosis, n (%) | ||
Hyperplastic polyp | 23 (3%) | 3 (5%) |
Sessile serrated adenoma/polyp | 40 (5%) | 3 (5%) |
Traditional serrated adenoma | 9 (1%) | 0 |
Low-grade adenoma/dysplasia | 441 (59%) | 47 (84%) |
High-grade adenoma/dysplasia | 214 (28%) | 2 (4%) |
Submucosal invasive cancer | 25 (3%) | 1 (2%) |
