Theme |
Frontier of image diagnosis for colorectal carcinoma |
Title |
Vascular pattern analysis in the colorectum using NBI system |
Author |
Hiroshi Kashida |
Digestive Disease Center, Showa University Northern Yokohama Hospital |
Author |
Yoshiki Wada |
Digestive Disease Center, Showa University Northern Yokohama Hospital |
Author |
Masashi Misawa |
Digestive Disease Center, Showa University Northern Yokohama Hospital |
Author |
Orie Takemura |
Digestive Disease Center, Showa University Northern Yokohama Hospital |
Author |
Takemasa Hayashi |
Digestive Disease Center, Showa University Northern Yokohama Hospital |
Author |
Kunihiko Wakamura |
Digestive Disease Center, Showa University Northern Yokohama Hospital |
Author |
Hideyuki Miyachi |
Digestive Disease Center, Showa University Northern Yokohama Hospital |
Author |
Nobunao Ikehara |
Digestive Disease Center, Showa University Northern Yokohama Hospital |
Author |
Shin-ei Kudo |
Digestive Disease Center, Showa University Northern Yokohama Hospital |
[ Summary ] |
Various vascular patterns in the colorectum were visualized with Narrow Band Imaging (NBI) magnification. We divided them into six patterns ; normal, faint, network, dense, irregular, and sparse. Assuming that faint pattern is characteristic of hyperplastic polyps, the accuracy is as high as 98.0%. Irregular/sparse patterns are useful for differentiating deeply invasive submucosal cancers from slightly, invasive cancers or intramucosal carcinomas. Diagnostic accuracy for this differentiation was 90.7%. |