Objective image analysis of non-magnifying image-enhanced endoscopy for diagnosis of small depressed early gastric cancers
| Autor: | Jiro Watari, Masaya Kobayashi, Keisuke Nakai, Chiyomi Ito, Akio Tamura, Tomohiro Ogawa, Takahisa Yamasaki, Takuya Okugawa, Takashi Kondo, Tomoaki Kono, Katsuyuki Tozawa, Toshihiko Tomita, Tadayuki Oshima, Hirokazu Fukui, Takeshi Morimoto, Hiroto Miwa |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Endoscopy International Open, Vol 06, Iss 12, Pp E1445-E1453 (2018) |
| Druh dokumentu: | article |
| ISSN: | 2364-3722 2196-9736 |
| DOI: | 10.1055/a-0735-9317 |
| Popis: | Background Gastric cancers (GC) after H. pylori eradication are difficult to diagnose even by magnifying narrow-band imaging (NBI) or blue laser imaging (BLI) endoscopy. Little is known with regard to non-magnifying (NM)-NBI/BLI for early GC so we examined the efficacy of NM-NBI/BLI for early GC diagnosis. Methods We retrospectively analyzed the images of 29 small (≤ 1 cm) intramucosal GC that had been treated with endoscopic submucosal dissection and 137 benign depressed lesions (BDLs). The brightness and shape of the GCs and BDLs by NM-NBI/BLI were assessed with ImageJ software. Results The NBI/BLI-index, which indicates the brightness of NBI/BLI for visualization, was significantly higher in GC than BDLs in both the H. pylori-infected (P = 0.009) and -eradicated group (P |
| Databáze: | Directory of Open Access Journals |
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