Research Article
Evaluation of the Diagnostic Ability of Optical Enhancement System in Early Gastric Cancer Demarcation
Table 2
Misdiagnosed score of WL-1 and OE-1 images by macroscopic type, color, tumor differentiation, location, and invasion depth.
| ā | ā | All evaluators () | Novice evaluators () | Experienced evaluators () | WL-1 | OE-1 | value | WL-1 | OE-1 | value | WL-1 | OE-1 | value |
| Macroscopic type | Elevated | 28686 | 23458 | 0.008 | 36534 | 29245 | 0.017 | 18171 | 15850 | 0.189 | Depressed | 43665 | 39362 | 0.168 | 49952 | 46492 | 0.379 | 32642 | 28019 | 0.360 | Color | Reddish | 37293 | 32915 | 0.067 | 44830 | 40431 | 0.126 | 25706 | 21807 | 0.287 | Normal-colored | 44250 | 42655 | 0.528 | 47885 | 49876 | 0.280 | 37033 | 33458 | 0.132 | Discolored | 28224 | 20519 | 0.014 | 35368 | 22896 | 0.071 | 18544 | 16619 | 0.507 | Differentiation | Differentiated | 36547 | 32182 | 0.022 | 44059 | 38577 | 0.041 | 25340 | 22644 | 0.331 | Undifferentiated | 32832 | 24459 | 0.239 | 35901 | 31491 | 0.285 | 26002 | 15555 | 0.116 | Location | Upper | 16819 | 15951 | 0.731 | 23769 | 22438 | 0.715 | 8669 | 7066 | 0.247 | Middle | 40418 | 33042 | 0.003 | 45736 | 39228 | 0.061 | 31239 | 24382 | 0.025 | Lower | 36903 | 37702 | 0.758 | 49746 | 45025 | 0.345 | 19004 | 25133 | 0.477 | Invasion depth | Mucosal layer | 32980 | 24805 | 0.007 | 40752 | 31454 | 0.026 | 22127 | 15661 | 0.089 | Submucosal layer | 39370 | 38015 | 0.413 | 45733 | 44283 | 0.545 | 28686 | 28209 | 0.895 |
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OE-1: optical enhancement Mode 1, WL-1: white light 1.
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