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Dive into the research topics where Keishi Koyama is active. These topic labels come from the works of this person. Together they form a unique fingerprint.
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Research output
- 8 Article
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Feasibility of bioabsorbable polyglycolic acid sheet and fibrin glue therapy for ulcer sealing after gastric endoscopic submucosal dissection
Shibata, T., Ishizuka, T., Koyama, K., Yamada, H., Horiguchi, N., Funasaka, K., Miyahara, R., Tahara, T. & Hirooka, Y., 2026, In: Fujita Medical Journal. 12, 1, p. 1-5 5 p.Research output: Contribution to journal › Article › peer-review
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Endoscopic submucosal dissection of early gastric cancer using a novel image-enhanced endoscopy: amber-red color imaging
Funasaka, K., Horiguchi, N., Yamada, H., Koyama, K., Kuzuya, T., Miyahara, R. & Hirooka, Y., 26-07-2024, In: Endoscopy. 56, S 01, p. E640-E641Research output: Contribution to journal › Article › peer-review
Open Access4 Link opens in a new tab Citations (Scopus) -
The Association between the Growth Pattern and Malignancy in the Formation of Ulceration in Gastric Gastrointestinal Stromal Tumor
Shibata, T., Koyama, K., Yamada, H., Kawamura, T., Yoshida, D., Osaki, H., Horiguchi, N., Funasaka, K., Miyahara, R., Nagasaka, M., Nakagawa, Y., Hashimoto, S., Tahara, T., Nakamura, M., Arisawa, T. & Hirooka, Y., 2023, In: Internal Medicine. 62, 17, p. 2451-2455 5 p.Research output: Contribution to journal › Article › peer-review
Open Access1 Link opens in a new tab Citation (Scopus) -
Complete omission of second-look endoscopy after gastric endoscopic submucosal dissection in real-world practice
Funasaka, K., Yamada, H., Horiguchi, N., Osaki, H., Yoshida, D., Terada, T., Koyama, K., Okubo, M., Tahara, T., Nagasaka, M., Nakagawa, Y., Shibata, T. & Ohmiya, N., 15-07-2022, In: Medicine (United States). 101, 28, p. E29386Research output: Contribution to journal › Article › peer-review
Open Access -
Novel image enhancement technology that helps find bleeding points during endoscopic submucosal dissection of gastric neoplasms
Funasaka, K., Miyahara, R., Horiguchi, N., Omori, T., Osaki, H., Yoshida, D., Yamada, H., Koyama, K., Nagasaka, M., Nakagawa, Y., Hashimoto, S., Shibata, T. & Hirooka, Y., 10-2022, In: Journal of Gastroenterology and Hepatology (Australia). 37, 10, p. 1955-1962 8 p.Research output: Contribution to journal › Article › peer-review
1 Link opens in a new tab Citation (Scopus)