Review Article
NBI and NBI Combined with Magnifying Colonoscopy
Table 1
Comparison of endoscopic diagnosis of the depth of submucosal deeply invasive colon cancer.
| Diagnostic method | Number of adenoma, m-ca#sm-slight-ca## | Number of sm deep-ca### | Overall accuracy (%) | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) |
| Magnifying chromoendoscopy (Invasive pattern) | 4035 | 180 | 98.8 | 85.6 | 99.4 | 86.5 | 99.4 | NBI with magnifying colonoscopy (capillary pattern classification) | 97 | 33 | 87.7 | 84.8 | 88.7 | 71.8 | 94.5 | Nonlifting sign | 245 | 26 | 94.8 | 61.5 | 98.4 | 80.0 | 96.0 |
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#Intramucosal cancer.
##sm slight invasive (<1000 μm) cancer.
###sm deep invasive (1000 μm) cancer.
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