| Detecting early gastric cancer: Comparison between the diagnostic ability of convolutional neural networks and endoscopists Y Ikenoyama, T Hirasawa, M Ishioka, K Namikawa, S Yoshimizu, ... Digestive Endoscopy 33 (1), 141-150, 2021 | 138 | 2021 |
| Pathological risk factors and predictive endoscopic factors for lymph node metastasis of T1 colorectal cancer: a single-center study of 846 lesions C Yasue, A Chino, M Takamatsu, K Namikawa, D Ide, S Saito, M Igarashi, ... Journal of gastroenterology 54, 708-717, 2019 | 81 | 2019 |
| Performance of a computer-aided diagnosis system in diagnosing early gastric cancer using magnifying endoscopy videos with narrow-band imaging (with videos) Y Horiuchi, T Hirasawa, N Ishizuka, Y Tokai, K Namikawa, S Yoshimizu, ... Gastrointestinal endoscopy 92 (4), 856-865. e1, 2020 | 69 | 2020 |
| Clinical significance of intratumoral HER2 heterogeneity on trastuzumab efficacy using endoscopic biopsy specimens in patients with advanced HER2 positive gastric cancer S Yagi, T Wakatsuki, N Yamamoto, K Chin, D Takahari, M Ogura, ... Gastric Cancer 22, 518-525, 2019 | 57 | 2019 |
| Utilizing artificial intelligence in endoscopy: a clinician’s guide K Namikawa, T Hirasawa, T Yoshio, J Fujisaki, T Ozawa, S Ishihara, ... Expert review of gastroenterology & hepatology 14 (8), 689-706, 2020 | 43 | 2020 |
| Artificial intelligence-based diagnostic system classifying gastric cancers and ulcers: comparison between the original and newly developed systems K Namikawa, T Hirasawa, K Nakano, Y Ikenoyama, M Ishioka, S Shiroma, ... Endoscopy 52 (12), 1077-1083, 2020 | 41 | 2020 |
| Current status and future perspective of artificial intelligence applications in endoscopic diagnosis and management of gastric cancer T Hirasawa, Y Ikenoyama, M Ishioka, K Namikawa, Y Horiuchi, ... Digestive Endoscopy 33 (2), 263-272, 2021 | 26 | 2021 |
| Ability of artificial intelligence to detect T1 esophageal squamous cell carcinoma from endoscopic videos and the effects of real-time assistance S Shiroma, T Yoshio, Y Kato, Y Horie, K Namikawa, Y Tokai, S Yoshimizu, ... Scientific Reports 11 (1), 7759, 2021 | 24 | 2021 |
| Is proximal gastrectomy indicated for locally advanced cancer in the upper third of the stomach? M Ri, K Kumagai, K Namikawa, S Atsumi, M Hayami, R Makuuchi, S Ida, ... Annals of Gastroenterological Surgery 5 (6), 767-775, 2021 | 17 | 2021 |
| Histopathologic analysis of signet-ring cell carcinoma in situ in patients with hereditary diffuse gastric cancer Y Tsugeno, K Nakano, T Nakajima, K Namikawa, M Takamatsu, ... The American Journal of Surgical Pathology 44 (9), 1204-1212, 2020 | 16 | 2020 |
| Long‐term outcomes of esophageal squamous cell carcinoma with invasion depth of pathological T1a‐muscularis mucosae and T1b‐submucosa by endoscopic resection followed by … S Naito, T Yoshio, A Ishiyama, T Tsuchida, J Tokura, K Namikawa, ... Digestive Endoscopy 34 (4), 793-804, 2022 | 15 | 2022 |
| Incidence of metachronous cancer after endoscopic submucosal dissection: a comparison between undifferentiated-type and differentiated-type early gastric cancer M Ishioka, T Yoshio, Y Miyamoto, K Namikawa, Y Tokai, S Yoshimizu, ... Gastrointestinal Endoscopy 93 (3), 557-564. e1, 2021 | 12 | 2021 |
| Clinical outcomes of endoscopic resection of preoperatively diagnosed non-circumferential T1a-muscularis mucosae or T1b-submucosa 1 esophageal squamous cell carcinoma K Namikawa, T Yoshio, S Yoshimizu, A Ishiyama, T Tsuchida, Y Tokai, ... Scientific Reports 11 (1), 6554, 2021 | 11 | 2021 |
| Clinical characteristics and long‐term prognosis of type 1 gastric neuroendocrine tumors in a large Japanese national cohort K Namikawa, T Kamada, J Fujisaki, Y Sato, T Murao, T Chiba, Y Kaizaki, ... Digestive Endoscopy, 2023 | 8 | 2023 |
| Artificial intelligence diagnostic system predicts multiple Lugol-voiding lesions in the esophagus and patients at high risk for esophageal squamous cell carcinoma Y Ikenoyama, T Yoshio, J Tokura, S Naito, K Namikawa, Y Tokai, ... Endoscopy 53 (11), 1105-1113, 2021 | 8 | 2021 |
| Diagnostic performance in gastric cancer is higher using endocytoscopy with narrow-band imaging than using magnifying endoscopy with narrow-band imaging Y Horiuchi, T Hirasawa, N Ishizuka, H Hatamori, Y Ikenoyama, J Tokura, ... Gastric Cancer 24, 417-427, 2021 | 8 | 2021 |
| Usefulness of the l‐type Wako Helicobacter pylori antibody J test Y Tokai, J Fujisaki, N Ishizuka, H Osumi, K Namikawa, S Yoshimizu, ... JGH Open 5 (6), 673-678, 2021 | 6 | 2021 |
| Detection of multiple intramucosal signet-ring cell carcinomas by white-light endoscopy and magnifying endoscopy with narrow-band imaging in a hereditary diffuse gastric cancer … K Namikawa, H Kawachi, Y Tsugeno, T Nakajima, J Fujisaki VideoGIE 6 (4), 163-166, 2021 | 6 | 2021 |
| Genomic features of Helicobacter pylori‐naïve diffuse‐type gastric cancer K Namikawa, N Tanaka, Y Ota, M Takamatsu, M Kosugi, Y Tokai, ... The Journal of Pathology 258 (3), 300-311, 2022 | 5 | 2022 |
| Risk factors for lymph node metastasis and indication of local resection in duodenal neuroendocrine tumors E Nakao, K Namikawa, T Hirasawa, K Nakano, Y Tokai, S Yoshimizu, ... JGH Open 6 (3), 189-195, 2022 | 5 | 2022 |
