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Evaluation of visibility for DRI during colorectal ESD.
| Evaluation | Total (%) | Visibility, number of cases (%) |
||
|---|---|---|---|---|
| Improved | Equivalent | Decreased | ||
| Vessel | 17 (100) | 10 (58.8) | 7 (41.2) | 0 (0) |
| Demarcation line of the muscle layer | 17 (100) | 11 (64.7) | 6 (35.3) | 0 (0) |
| Submucosal fibrosis | 17 (100) | 0 (0) | 17 (100) | 0 (0) |
Kappa statistic: vessel, 0.63; demarcation line of the muscle layer, 0.62; submucosal fibrosis, 0.47.
DRI, dual red imaging; ESD, endoscopic submucosal dissection.
