Copyright: ©Author(s) 2026.
World J Gastroenterol. Jul 21, 2026; 32(27): 119276
Published online Jul 21, 2026. doi: 10.3748/wjg.119276
Published online Jul 21, 2026. doi: 10.3748/wjg.119276
Table 3 Factors that impact mucosa touch rate detection
| Change factor | Ileocecal recognition | Mucosa touch recognition | ||||
| Recall % (95%CI) | Precision % (95%CI) | Accuracy % (95%CI) | Recall % (95%CI) | Precision % (95%CI) | Accuracy % (95%CI) | |
| Calculated test metrics for the test set of factors affecting the brightness | ||||||
| 0.2 | 96.15 (95.87, 96.43) | 100.00 (100.00, 100.00) | 98.08 (97.90, 98.26) | 100.00 (100.00, 100.00) | 100.00 (100.00, 100.00) | 100.00 (100.00, 100.00) |
| 0.4 | 96.15 (96.00, 96.03) | 98.04 (97.89, 98.19) | 97.12 (96.85, 97.39) | 100.00 (100.00, 100.00) | 98.11 (98.01, 98.21) | 99.04 (98.76, 99.32) |
| 0.6 | 94.23 (94.14, 94.32) | 98.00 (97.95, 98.05) | 96.15 (95.88, 96.42) | 98.07 (97.88, 98.26) | 98.07 (97.47, 98.67) | 98.07 (96.89, 99.25) |
| 0.8 | 94.23 (93.17, 95.29) | 96.08 (94.33, 97.83) | 95.19 (92.83, 97.55) | 96.15 (94.52, 97.78) | 98.04 (96.14, 99.94) | 97.12 (94.86, 99.38) |
| 1.0 | 92.31 (90.21, 94.41) | 96.00 (93.68, 98.32) | 94.23 (92.35, 96.11) | 94.23 (91.36, 97.10) | 96.08 (92.89, 99.27) | 95.19 (93.68, 96.70) |
| 1.2 | 92.31 (89.87, 94.75) | 96.00 (92.59, 99.41) | 94.23 (91.44, 97.02) | 94.23 (91.33, 97.13) | 94.23 (92.35, 96.11) | 94.23 (90.66, 97.80) |
| 1.4 | 86.54 (83.77, 89.31) | 88.23 (82.99, 93.47) | 87.5 (85.44, 89.56) | 92.31 (88.75, 95.87) | 94.12 (90.33, 97.91) | 93.27 (89.71, 96.83) |
| 1.6 | 19.23 (14.69, 23.77) | 58.82 (50.69, 66.95) | 52.88 (48.99, 56.77) | 42.31 (38.55, 46.07) | 50.00 (45.06, 54.94) | 50.00 (45.06, 54.94) |
| 1.8 | 19.23 (14.69, 23.77) | 58.82 (50.69, 66.95) | 52.88 (48.99, 56.77) | 42.31 (38.55, 46.07) | 50.00 (45.06, 54.94) | 50.00 (45.06, 54.94) |
| 2.0 | 19.23 (14.69, 23.77) | 58.82 (50.69, 66.95) | 52.88 (48.99, 56.77) | 42.31 (38.55, 46.07) | 50.00 (45.06, 54.94) | 50.00 (45.06, 54.94) |
| Calculated test metrics for the test set of contrast influencing factors | ||||||
| 0.2 | 96.15 (93.77, 98.53) | 98.04 (97.33, 98.75) | 97.12 (96.55, 97.69) | 98.08 (96.47, 99.69) | 100.00 (100.00, 100.00) | 99.04 (98.15, 99.93) |
| 0.4 | 98.08 (96.81, 99.35) | 98.08 (96.99, 99.17) | 98.08 (97.00, 99.16) | 100.00 (100.00, 100.00) | 100.00 (100.00, 100.00) | 100.00 (100.00, 100.00) |
| 0.6 | 94.23 (92.65, 95.81) | 96.08 (94.33, 97.83) | 95.19 (92.69, 97.69) | 96.15 (94.87, 97.43) | 94.34 (91.58, 97.10) | 95.19 (93.67, 96.71) |
| 0.8 | 92.31 (90.77, 93.85) | 94.12 (93.17, 95.07) | 93.27 (91.22, 95.32) | 94.23 (92.59, 95.87) | 96.08 (94.33, 97.83) | 95.19 (93.74, 96.64) |
| 1.0 | 86.53 (81.79, 91.27) | 86.53 (83.44, 89.62) | 86.54 (84.65, 88.43) | 92.31 (90.11, 94.51) | 73.85 (70.33, 77.37) | 79.81 (75.99, 83.63) |
| 1.2 | 86.53 (83.77, 89.29) | 78.95 (76.88, 81.02) | 81.73 (78.54, 84.92) | 92.31 (90.41, 94.21) | 73.85 (70.41, 77.29) | 79.81 (77.25, 82.37) |
| 1.4 | 78.84 (76.38, 81.30) | 70.69 (67.89, 73.49) | 73.08 (71.21, 74.95) | 92.31 (89.76, 94.86) | 68.57 (65.71, 71.43) | 75.00 (72.99, 77.01) |
| 1.6 | 75.00 (73.68, 76.32) | 67.24 (63.79, 70.69) | 69.23 (65.33, 73.13) | 88.46 (85.67, 91.25) | 63.89 (60.55, 67.23) | 69.23 (66.31, 72.15) |
| 1.8 | 59.62 (57.22, 62.02) | 58.49 (57.71, 59.27) | 58.65 (54.99, 62.31) | 84.62 (81.67, 87.57) | 61.97 (59.43, 64.51) | 66.34 (64.58, 68.10) |
| 2.0 | 48.08 (46.71, 49.45) | 42.37 (39.97, 44.77) | 41.35 (38.53, 44.17) | 76.92 (74.66, 79.18) | 55.56 (53.78, 57.34) | 57.69 (56.43, 58.95) |
| Calculated test metrics for the test set of rotational change influencing factors | ||||||
| -30° | 98.07 (97.99, 98.15) | 98.07 (97.99, 98.15) | 98.07 (97.99, 98.15) | 98.07 (97.99, 98.15) | 100.00 (100.00, 100.00) | 99.04 (98.08, 100.00) |
| -60° | 96.15 (95.21, 97.09) | 98.04 (97.32, 98.76) | 97.12 (95.69, 98.55) | 96.15 (94.87, 97.43) | 100.00 (100.00, 100.00) | 98.08 (96.87, 99.29) |
| -90° | 98.07 (96.87, 99.27) | 100.00 (100.00, 100.00) | 99.03 (98.06,100.00) | 100.00 (100.00, 100.00) | 100.00 (100.00, 100.00) | 100.00 (100.00, 100.00) |
| -120° | 98.07 (97.66, 98.48) | 98.07 (97.99, 98.15) | 98.07 (98.00, 98.14) | 100.00 (100.00, 100.00) | 98.11 (98.03, 98.19) | 99.04 (98.08, 100.00) |
| -150° | 94.23 (92.66, 95.80) | 96.08 (94.77, 97.39) | 95.19 (94.15, 96.23) | 96.15 (95.21, 97.09) | 100.00 (100.00, 100.00) | 98.08 (97.99, 98.17) |
| -180° | 98.07 (97.88, 98.26) | 100.00 (100.00, 100.00) | 99.03 (98.06, 100.00) | 100.00 (100.00, 100.00) | 100.00 (100.00, 100.00) | 100.00 (100.00, 100.00) |
| -210° | 96.15 (94.77, 97.53) | 98.04 (96.58, 99.50) | 97.12 (94.99, 99.25) | 96.15 (95.37, 96.93) | 100.00 (100.00, 100.00) | 98.08 (98.01, 98.15) |
| -240° | 94.23 (92.63, 95.83) | 96.08 (95.77, 96.39) | 95.19 (94.15, 96.23) | 98.07 (97.16, 98.98) | 100.00 (100.00, 100.00) | 99.04 (98.08, 100.00) |
| -270° | 98.07 (97.19, 98.95) | 100.00 (100.00, 100.00) | 99.03 (98.06, 100.00) | 100.00 (100.00, 100.00) | 98.11 (98.03, 98.19) | 99.04 (98.99, 99.09) |
| -300° | 94.23 (92.41, 96.05) | 96.08 (95.88, 96.28) | 95.19 (93.77, 96.61) | 98.07 (98.00, 98.14) | 100.00 (100.00, 100.00) | 99.04 (98.89, 99.19) |
| -330° | 96.15 (94.58, 97.72) | 98.04 (96.59, 99.49) | 97.12 (95.88, 98.36) | 96.15 (94.79, 97.51) | 100.00 (100.00, 100.00) | 98.08 (97.99, 98.17) |
- Citation: Chen W, Wu M, Wang HY, Wu HB, Li J, Sun YH, Huang F, Gao M, Zhong ZH, Wu YM, Chen L. Artificial intelligence-based mucosa touch rate: A novel real-time quality control indicator for colonoscopy. World J Gastroenterol 2026; 32(27): 119276
- URL: https://www.wjgnet.com/1007-9327/full/v32/i27/119276.htm
- DOI: https://dx.doi.org/10.3748/wjg.119276