Endoscopist | Findings from histology | |||||||
No recurrence | Recurrence | |||||||
HD-WL | HD-WL with near focus | NBI | NBI with near focus | HD-WL | HD-WL with near focus | NBI | NBI with near focus | |
n=29 (%) | n=29 (%) | n=29 (%) | n=29 (%) | n=29 (%) | n=29 (%) | n=29 (%) | n=29 (%) | |
1 | 27 (93) | 28 (97) | 28 (97) | 28 (97) | 14 (48) | 20 (69) | 17 (59) | 23 (79) |
2 | 26 (90) | 29 (100) | 27 (93) | 27 (93) | 17 (59) | 17 (59) | 18 (62) | 23 (79) |
3 | 26 (90) | 28 (97) | 28 (97) | 28 (97) | 17 (59) | 20 (69) | 21 (72) | 23 (79) |
4 | 28 (97) | 28 (97) | 25 (86) | 27 (93) | 17 (59) | 17 (59) | 19 (66) | 22 (76) |
5 | 25 (86) | 26 (90) | 26 (90) | 26 (90) | 21 (72) | 19 (66) | 18 (62) | 22 (76) |
6 | 27 (93) | 27 (93) | 29 (100) | 27 (93) | 22 (76) | 20 (69) | 21 (72) | 22 (76) |
7 | 26 (90) | 26 (90) | 29 (100) | 29 (100) | 17 (59) | 16 (55) | 18 (62) | 21 (72) |
8 | 27 (93) | 28 (97) | 28 (97) | 26 (90) | 25 (86) | 22 (76) | 26 (90) | 25 (86) |
9 | 26 (90) | 28 (97) | 27 (93) | 26 (90) | 23 (79) | 19 (66) | 23 (79) | 26 (90) |
10 | 28 (97) | 28 (97) | 28 (97) | 29 (100) | 20 (69) | 19 (66) | 18 (62) | 23 (79) |
11 | 28 (97) | 29 (100) | 27 (93) | 26 (90) | 21 (72) | 21 (72) | 21 (72) | 23 (79) |
12 | 28 (97) | 27 (93) | 28 (97) | 28 (97) | 20 (69) | 18 (62) | 17 (59) | 24 (83) |
13 | 29 (100) | 28 (97) | 29 (100) | 29 (100) | 18 (62) | 19 (66) | 22 (76) | 25 (86) |
14 | 26 (90) | 27 (93) | 24 (83) | 27 (93) | 21 (72) | 21 (72) | 20 (69) | 26 (90) |
15 | 28 (97) | 27 (93) | 25 (86) | 25 (86) | 22 (76) | 24 (83) | 22 (76) | 27 (93) |
16 | 29 (100) | 29 (100) | 29 (100) | 27 (93) | 11 (38) | 20 (69) | 18 (62) | 21 (72) |
17 | 29 (100) | 29 (100) | 28 (97) | 28 (97) | 23 (79) | 21 (72) | 22 (76) | 25 (86) |
18 | 29 (100) | 29 (100) | 28 (97) | 27 (93) | 23 (79) | 21 (72) | 25 (86) | 26 (90) |
19 | 29 (100) | 28 (97) | 29 (100) | 29 (100) | 20 (69) | 20 (69) | 19 (66) | 25 (86) |
20 | 28 (97) | 27 (93) | 26 (90) | 29 (100) | 22 (76) | 18 (62) | 18 (62) | 22 (76) |
21 | 29 (100) | 29 (100) | 29 (100) | 28 (97) | 23 (79) | 22 (76) | 21 (72) | 23 (79) |
22 | 29 (100) | 27 (93) | 27 (93) | 28 (97) | 19 (66) | 18 (62) | 21 (72) | 24 (83) |
23 | 24 (83) | 22 (76) | 18 (62) | 16 (55) | 14 (48) | 17 (59) | 22 (76) | 22 (76) |
24 | 28 (97) | 27 (93) | 24 (83) | 24 (83) | 25 (86) | 23 (79) | 26 (90) | 27 (93) |
25 | 28 (97) | 28 (97) | 26 (90) | 29 (100) | 22 (76) | 22 (76) | 24 (83) | 22 (76) |
26 | 28 (97) | 29 (100) | 28 (97) | 28 (97) | 21 (72) | 18 (62) | 21 (72) | 26 (90) |
Mean | 95 | 95 | 93 | 93 | 69 | 68 | 71 | 82 |
Range | 83–100 | 76–100 | 62–100 | 55%–100 | 38%–86 | 55–83 | 59–90 | 72%–93 |
*The number and percent of images with agreement between histology and offline assessment is interpreted as the endoscopist-level specificity for images without histological recurrence and sensitivity for images with histological recurrence.
HD-WL, high-definition white light imaging; NBI, narrow-band imaging.