Hiroya Ueyama

ORCID

Publication Activity (10 Years)

Years Active: 2018-2024
Publications (10 Years): 37

Top Venues

Journal of clinical medicine

DEN open

Endoscopy

Journal of gastroenterology and hepatology

This page only lists publications with an associated author ORCID identifier.

Publications

Will Takakura, Shanti Eswaran, William D Chey, Hiroya Ueyama, Richard S Kwon, Andrea Todisco, Scott Owens, Elena Stoffel, Oxana V Crysler, Filip Bednar, Benjamin R Hart
Early Gastric Signet Ring Cell Adenocarcinoma as a Flat Pale Patch on an Esophagogastroduodenoscopy. The American journal of gastroenterology (2024)
Tsutomu Takeda, Daisuke Asaoka, Hiroya Ueyama, Daiki Abe, Maiko Suzuki, Yoshihiro Inami, Yasuko Uemura, Momoko Yamamoto, Tomoyo Iwano, Ryota Uchida, Hisanori Utsunomiya, Shotaro Oki, Nobuyuki Suzuki, Atsushi Ikeda, Yoichi Akazawa, Kohei Matsumoto, Kumiko Ueda, Mariko Hojo, Shuko Nojiri, Tomohiro Tada, Akihito Nagahara
Development of an Artificial Intelligence Diagnostic System Using Linked Color Imaging for Barrett's Esophagus. Journal of clinical medicine 13 (7) (2024)
Masaaki Kobayashi, Junko Fujisaki, Ken Namikawa, Shu Hoteya, Akiko Sasaki, Kotaro Shibagaki, Kenshi Yao, Seiichiro Abe, Ichiro Oda, Hiroya Ueyama, Hajime Isomoto, Masanori Ito, Mitsushige Sugimoto, Takashi Kawai, Masaaki Kodama, Kazunari Murakami, Kyoichi Adachi, Nobuyuki Matsuhashi, Ken Ohata, Toshikazu Ushijima, Mototsugu Kato, Shin'ichi Miyamoto, Daisuke Yoshimura, Takashi Yao, Kazuyoshi Yagi, Moriya Iwaizumi, Naomi Uemura
Multicenter study of invasive gastric cancer detected after 10 years of Helicobacter pylori eradication in Japan: Clinical, endoscopic, and histopathologic characteristics. DEN open 4 (1) (2024)
Hiroya Ueyama, Toshiaki Hirasawa, Tomonori Yano, Hisashi Doyama, Hajime Isomoto, Kazuyoshi Yagi, Takashi Kawai, Kenshi Yao
Advanced diagnostic endoscopy in the upper gastrointestinal tract: Review of the Japan Gastroenterological Endoscopic Society core sessions. DEN open 4 (1) (2024)
Hiroya Ueyama, Toshiaki Hirasawa, Tomonori Yano, Hisashi Doyama, Hajime Isomoto, Kazuyoshi Yagi, Takashi Kawai, Kenshi Yao
Advanced diagnostic endoscopy in the upper gastrointestinal tract: Review of the Japan Gastroenterological Endoscopic Society core sessions. DEN open 4 (1) (2024)
Eiji Kamba, Takashi Murakami, Naoki Tsugawa, Kei Nomura, Keiichi Haga, Yoichi Akazawa, Hirofumi Fukushima, Hiroya Ueyama, Kenshi Matsumoto, Tomoyoshi Shibuya, Takeshi Terai, Takashi Yao, Akihito Nagahara
Novel physiological analysis using blood flow velocity for colonic polyps: Pilot study. Endoscopy international open 12 (6) (2024)
Hiroya Ueyama, Toshiaki Hirasawa, Tomonori Yano, Hisashi Doyama, Hajime Isomoto, Kazuyoshi Yagi, Takashi Kawai, Kenshi Yao
Advanced diagnostic endoscopy in the upper gastrointestinal tract: Review of the Japan Gastroenterological Endoscopic Society core sessions. DEN open 4 (1) (2024)
Tsutomu Takeda, Daiki Abe, Daisuke Asaoka, Tomoyo Iwano, Momoko Yamamoto, Ryota Uchida, Hisanori Utsunomiya, Shotaro Oki, Nobuyuki Suzuki, Atsushi Ikeda, Yoichi Akazawa, Kumiko Ueda, Hiroya Ueyama, Mariko Hojo, Shuko Nojiri, Akihito Nagahara
Risk Factors for Mucosal Redness in the Duodenal Bulb as Detected via Linked Color Imaging. Diagnostics (Basel, Switzerland) 14 (5) (2024)
Tsutomu Takeda, Daisuke Asaoka, Hiroya Ueyama, Daiki Abe, Maiko Suzuki, Yoshihiro Inami, Yasuko Uemura, Momoko Yamamoto, Tomoyo Iwano, Ryota Uchida, Hisanori Utsunomiya, Shotaro Oki, Nobuyuki Suzuki, Atsushi Ikeda, Yoichi Akazawa, Kohei Matsumoto, Kumiko Ueda, Mariko Hojo, Shuko Nojiri, Tomohiro Tada, Akihito Nagahara
Development of an Artificial Intelligence Diagnostic System Using Linked Color Imaging for Barrett's Esophagus. Journal of clinical medicine 13 (7) (2024)
Tsutomu Takeda, Daisuke Asaoka, Hiroya Ueyama, Daiki Abe, Maiko Suzuki, Yoshihiro Inami, Yasuko Uemura, Momoko Yamamoto, Tomoyo Iwano, Ryota Uchida, Hisanori Utsunomiya, Shotaro Oki, Nobuyuki Suzuki, Atsushi Ikeda, Yoichi Akazawa, Kohei Matsumoto, Kumiko Ueda, Mariko Hojo, Shuko Nojiri, Tomohiro Tada, Akihito Nagahara
Development of an Artificial Intelligence Diagnostic System Using Linked Color Imaging for Barrett's Esophagus. Journal of clinical medicine 13 (7) (2024)
Eiji Kamba, Takashi Murakami, Naoki Tsugawa, Kei Nomura, Keiichi Haga, Yoichi Akazawa, Hirofumi Fukushima, Hiroya Ueyama, Kenshi Matsumoto, Tomoyoshi Shibuya, Takeshi Terai, Takashi Yao, Akihito Nagahara
Novel physiological analysis using blood flow velocity for colonic polyps: Pilot study. Endoscopy international open 12 (6) (2024)
Tsutomu Takeda, Daiki Abe, Daisuke Asaoka, Tomoyo Iwano, Momoko Yamamoto, Ryota Uchida, Hisanori Utsunomiya, Shotaro Oki, Nobuyuki Suzuki, Atsushi Ikeda, Yoichi Akazawa, Kumiko Ueda, Hiroya Ueyama, Mariko Hojo, Shuko Nojiri, Akihito Nagahara
Risk Factors for Mucosal Redness in the Duodenal Bulb as Detected via Linked Color Imaging. Diagnostics (Basel, Switzerland) 14 (5) (2024)
Masaaki Kobayashi, Junko Fujisaki, Ken Namikawa, Shu Hoteya, Akiko Sasaki, Kotaro Shibagaki, Kenshi Yao, Seiichiro Abe, Ichiro Oda, Hiroya Ueyama, Hajime Isomoto, Masanori Ito, Mitsushige Sugimoto, Takashi Kawai, Masaaki Kodama, Kazunari Murakami, Kyoichi Adachi, Nobuyuki Matsuhashi, Ken Ohata, Toshikazu Ushijima, Mototsugu Kato, Shin'ichi Miyamoto, Daisuke Yoshimura, Takashi Yao, Kazuyoshi Yagi, Moriya Iwaizumi, Naomi Uemura
Multicenter study of invasive gastric cancer detected after 10 years of Helicobacter pylori eradication in Japan: Clinical, endoscopic, and histopathologic characteristics. DEN open 4 (1) (2024)
Mayuko Haraikawa, Tsutomu Takeda, Shotaro Oki, Mariko Hojo, Daisuke Asaoka, Tomoyo Iwano, Ryouta Uchida, Hisanori Utsunomiya, Nobuyuki Susuki, Daiki Abe, Atsushi Ikeda, Yoichi Akazawa, Kumiko Ueda, Hiroya Ueyama, Tomoyoshi Shibuya, Shuko Nojiri, Hidekazu Nagasawa, Masaru Suzuki, Ryohei Kuwatsuru, Akihito Nagahara
Correlation between Constipation Symptoms and Abdominal CT Imaging: A Cross-Sectional Pilot Study. Journal of clinical medicine 12 (1) (2023)
Mayuko Haraikawa, Tsutomu Takeda, Shotaro Oki, Mariko Hojo, Daisuke Asaoka, Tomoyo Iwano, Ryouta Uchida, Hisanori Utsunomiya, Nobuyuki Susuki, Daiki Abe, Atsushi Ikeda, Yoichi Akazawa, Kumiko Ueda, Hiroya Ueyama, Tomoyoshi Shibuya, Shuko Nojiri, Hidekazu Nagasawa, Masaru Suzuki, Ryohei Kuwatsuru, Akihito Nagahara
Correlation between Constipation Symptoms and Abdominal CT Imaging: A Cross-Sectional Pilot Study. Journal of clinical medicine 12 (1) (2023)
Nobuyuki Suzuki, Atsushi Ikeda, Hiroya Ueyama, Noboru Yatagai, Yasuko Uemura, Momoko Yamamoto, Tomoyo Iwano, Hisanori Utsunomiya, Ryota Uchida, Daiki Abe, Shotaro Oki, Yoichi Akazawa, Tsutomu Takeda, Kumiko Ueda, Mariko Hojo, Takashi Yao, Akihito Nagahara
Endoscopic Diagnosis Strategy of Raspberry-Shaped Gastric Lesion in Helicobacter Pylori-Uninfected Patient. Journal of clinical medicine 12 (17) (2023)
Eiji Kamba, Takashi Murakami, Hiroya Ueyama, Tomoyoshi Shibuya, Mariko Hojo, Ken Yamaji, Akihito Nagahara
Anisakiasis in the Upper Esophagus: A Case Report. Medicina (Kaunas, Lithuania) 59 (10) (2023)
Mayuko Haraikawa, Tsutomu Takeda, Shotaro Oki, Mariko Hojo, Daisuke Asaoka, Tomoyo Iwano, Ryouta Uchida, Hisanori Utsunomiya, Nobuyuki Susuki, Daiki Abe, Atsushi Ikeda, Yoichi Akazawa, Kumiko Ueda, Hiroya Ueyama, Tomoyoshi Shibuya, Shuko Nojiri, Hidekazu Nagasawa, Masaru Suzuki, Ryohei Kuwatsuru, Akihito Nagahara
Correlation between Constipation Symptoms and Abdominal CT Imaging: A Cross-Sectional Pilot Study. Journal of clinical medicine 12 (1) (2023)
Takashi Murakami, Eiji Kamba, Keiichi Haga, Yoichi Akazawa, Hiroya Ueyama, Tomoyoshi Shibuya, Mariko Hojo, Akihito Nagahara
Emergency Endoscopic Hemostasis for Gastrointestinal Bleeding Using a Self-Assembling Peptide: A Case Series. Medicina (Kaunas, Lithuania) 59 (5) (2023)
Mayuko Haraikawa, Tsutomu Takeda, Shotaro Oki, Mariko Hojo, Daisuke Asaoka, Tomoyo Iwano, Ryouta Uchida, Hisanori Utsunomiya, Nobuyuki Susuki, Daiki Abe, Atsushi Ikeda, Yoichi Akazawa, Kumiko Ueda, Hiroya Ueyama, Tomoyoshi Shibuya, Shuko Nojiri, Hidekazu Nagasawa, Masaru Suzuki, Ryohei Kuwatsuru, Akihito Nagahara
Correlation between Constipation Symptoms and Abdominal CT Imaging: A Cross-Sectional Pilot Study. Journal of clinical medicine 12 (1) (2023)
Osamu Dohi, Motohiko Kato, Toshio Uraoka, Shu Hoteya, Tsuneo Oyama, Satoru Nonaka, Shoichi Yoshimizu, Masao Yoshida, Ken Ohata, Yoshimasa Miura, Yuko Hara, Shigetsugu Tsuji, Yasushi Yamasaki, Hiroya Ueyama, Koichi Kurahara, Tomoaki Tashima, Nobutsugu Abe, Atsushi Nakayama, Ichiro Oda, Naohisa Yahagi
Clinical course and management of adverse events after endoscopic resection of superficial duodenal epithelial tumors: A multi-center retrospective study. Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society (2023)
Motohiko Kato, Yoji Takeuchi, Shu Hoteya, Tsuneo Oyama, Satoru Nonaka, Shoichi Yoshimizu, Naomi Kakushima, Ken Ohata, Hironori Yamamoto, Yuko Hara, Hisashi Doyama, Osamu Dohi, Yasushi Yamasaki, Hiroya Ueyama, Kengo Takimoto, Koichi Kurahara, Tomoaki Tashima, Nobutsugu Abe, Atsushi Nakayama, Ichiro Oda, Naohisa Yahagi
Reply to Lv and Yang. Endoscopy 54 (5) (2022)
Kohei Matsumoto, Hiroya Ueyama, Takashi Yao, Tomoyo Iwano, Momoko Yamamoto, Hisanori Utsunomiya, Ryota Uchida, Daiki Abe, Shotaro Oki, Nobuyuki Suzuki, Atsushi Ikeda, Noboru Yatagai, Yoichi Akazawa, Tsutomu Takeda, Kumiko Ueda, Daisuke Asaoka, Mariko Hojo, Akihito Nagahara
Endoscopic Features of Gastric Epithelial Neoplasm of Fundic Gland Mucosa Lineage. Diagnostics (Basel, Switzerland) 12 (11) (2022)
Yoshito Hayashi, Waku Hatta, Yosuke Tsuji, Toshiyuki Yoshio, Yohei Yabuuchi, Shu Hoteya, Shigetsugu Tsuji, Yasuaki Nagami, Takuto Hikichi, Masakuni Kobayashi, Yoshinori Morita, Tetsuya Sumiyoshi, Mikitaka Iguchi, Hideomi Tomida, Takuya Inoue, Tatsuya Mikami, Kenkei Hasatani, Jun Nishikawa, Tomoaki Matsumura, Hiroko Nebiki, Dai Nakamatsu, Ken Ohnita, Haruhisa Suzuki, Hiroya Ueyama, Mitsushige Sugimoto, Shinjiro Yamaguchi, Tomoki Michida, Tomoyuki Yada, Yoshiro Asahina, Toshiaki Narasaka, Shiko Kuribayashi, Shu Kiyotoki, Katsuhiro Mabe, Akimitsu Miyake, Mitsuhiro Fujishiro, Atsushi Masamune, Tetsuo Takehara
The degree of mucosal atrophy is associated with post-endoscopic submucosal dissection bleeding in early gastric cancer. Journal of gastroenterology and hepatology 37 (5) (2022)
Yuji Shimada, Mariko Hojo, Yuji Kita, Yuji Ikeda, Sho Sato, Ayato Murata, Shunsuke Sato, Kohei Matsumoto, Yoichi Akazawa, Tsutomu Takeda, Kumiko Ueda, Hiroya Ueyama, Tomoyoshi Shibuya, Takuya Genda, Akihito Nagahara
Comparison of the Degree of Gastric Mucosal Injury between Patients Who Are Receiving Dual Antiplatelet Therapy or Single Antiplatelet Therapy. Diagnostics (Basel, Switzerland) 12 (10) (2022)
Shotaro Oki, Tsutomu Takeda, Mariko Hojo, Ryota Uchida, Nobuyuki Suzuki, Daiki Abe, Atsushi Ikeda, Yoichi Akazawa, Hiroya Ueyama, Shuko Nojiri, Shinichi Hoshino, Hayashi Shokita, Akihito Nagahara
Comparative Study of Helicobacter pylori- Infected Gastritis in Okinawa and Tokyo Based on the Kyoto Classification of Gastritis. Journal of clinical medicine 11 (19) (2022)
Hiroya Ueyama, Noboru Yatagai, Atsushi Ikeda, Yoichi Akazawa, Hiroyuki Komori, Tsutomu Takeda, Kohei Matsumoto, Kumiko Ueda, Kenshi Matsumoto, Daisuke Asaoka, Mariko Hojo, Takashi Yao, Akihito Nagahara
Dynamic diagnosis of early gastric cancer with microvascular blood flow rate using magnifying endoscopy (with video): A pilot study. Journal of gastroenterology and hepatology 36 (7) (2021)
Hirofumi Fukushima, Naoto Sakamoto, Tomoyoshi Shibuya, Keiichi Haga, Osamu Nomura, Takashi Murakami, Hiroya Ueyama, Dai Ishikawa, Mariko Hojo, Akihito Nagahara
A Comparative Study of Early Mucosal Healing Following Hot Polypectomy and Cold Polypectomy. Medical science monitor : international medical journal of experimental and clinical research 27 (2021)
Yasuaki Nagami, Waku Hatta, Yosuke Tsuji, Toshiyuki Yoshio, Naomi Kakushima, Syu Hoteya, Shigetsugu Tsuji, Shusei Fukunaga, Takuto Hikichi, Masakuni Kobayashi, Yoshinori Morita, Tetsuya Sumiyoshi, Mikitaka Iguchi, Hideomi Tomida, Takuya Inoue, Tatsuya Mikami, Kenkei Hasatani, Jun Nishikawa, Tomoaki Matsumura, Hiroko Nebiki, Dai Nakamatsu, Ken Ohnita, Haruhisa Suzuki, Hiroya Ueyama, Yoshito Hayashi, Hisako Yoshida, Mitsuhiro Fujishiro, Atsushi Masamune, Yasuhiro Fujiwara, null null
Antithrombotics increase bleeding after endoscopic submucosal dissection for gastric cancer: Nationwide propensity score analysis. Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society (2021)
Hiroya Ueyama, Yoichi Akazawa, Toshio Fujisawa, Hiroyuki Isayama, Akihito Nagahara
A novel endoscopic shield: a barrier device to minimize virus transmission during endoscopy. Endoscopy 54 (4) (2021)
Motohiko Kato, Yoji Takeuchi, Shu Hoteya, Tsuneo Oyama, Satoru Nonaka, Shoichi Yoshimizu, Naomi Kakushima, Ken Ohata, Hironori Yamamoto, Yuko Hara, Hisashi Doyama, Osamu Dohi, Yasushi Yamasaki, Hiroya Ueyama, Kengo Takimoto, Koichi Kurahara, Tomoaki Tashima, Nobutsugu Abe, Atsushi Nakayama, Ichiro Oda, Naohisa Yahagi
Outcomes of endoscopic resection for superficial duodenal tumors: 10 years' experience in 18 Japanese high volume centers. Endoscopy (2021)
Minami Hashimoto, Waku Hatta, Yosuke Tsuji, Toshiyuki Yoshio, Yohei Yabuuchi, Shu Hoteya, Hisashi Doyama, Yasuaki Nagami, Takuto Hikichi, Masakuni Kobayashi, Yoshinori Morita, Tetsuya Sumiyoshi, Mikitaka Iguchi, Hideomi Tomida, Takuya Inoue, Tatsuya Mikami, Kenkei Hasatani, Jun Nishikawa, Tomoaki Matsumura, Hiroko Nebiki, Dai Nakamatsu, Ken Ohnita, Haruhisa Suzuki, Hiroya Ueyama, Yoshito Hayashi, Mitsushige Sugimoto, Mitsuhiro Fujishiro, Atsushi Masamune, Hiromasa Ohira
Rebleeding in patients with delayed bleeding after endoscopic submucosal dissection for early gastric cancer. Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society 33 (7) (2021)
Tsutomu Takeda, Hiroya Ueyama, Kuang-I Fu, Satoshi Murata, Akihito Nagahara
Minute gastric adenocarcinoma of the fundic-gland type with submucosal invasion. Endoscopy (2021)
Sho Shiroma, Waku Hatta, Yosuke Tsuji, Toshiyuki Yoshio, Yohei Yabuuchi, Shu Hoteya, Shigetsugu Tsuji, Yasuaki Nagami, Takuto Hikichi, Masakuni Kobayashi, Yoshinori Morita, Tetsuya Sumiyoshi, Mikitaka Iguchi, Hideomi Tomida, Takuya Inoue, Tatsuya Mikami, Kenkei Hasatani, Jun Nishikawa, Tomoaki Matsumura, Hiroko Nebiki, Dai Nakamatsu, Ken Ohnita, Haruhisa Suzuki, Hiroya Ueyama, Yoshito Hayashi, Mitsushige Sugimoto, Shinjiro Yamaguchi, Tomoki Michida, Tomoyuki Yada, Yoshiro Asahina, Toshiaki Narasaka, Shiko Kuribayashi, Shu Kiyotoki, Katsuhiro Mabe, Mitsuhiro Fujishiro, Atsushi Masamune, Junko Fujisaki
Timing of bleeding and thromboembolism associated with endoscopic submucosal dissection for gastric cancer in Japan. Journal of gastroenterology and hepatology 36 (10) (2021)
Hiroya Ueyama, Takashi Yao, Yoichi Akazawa, Takuo Hayashi, Koichi Kurahara, Yumi Oshiro, Masayoshi Yamada, Ichiro Oda, Shin Fujioka, Chiaki Kusumoto, Masayoshi Fukuda, Kunihisa Uchita, Tomohiro Kadota, Yasuhiro Oono, Kazuhisa Okamoto, Kazunari Murakami, Yasumasa Matsuo, Motohiko Kato, Tadateru Maehata, Naohisa Yahagi, Yumiko Yasuhara, Tomoyuki Yada, Koji Uraushihara, Tetsumi Yamane, Taiji Matsuo, Masanori Ito, Yasuhiko Maruyama, Ayumi Osako, Shoko Ono, Mototsugu Kato, Kazuyoshi Yagi, Takashi Hashimoto, Natsumi Tomita, Sho Tsuyama, Tsuyoshi Saito, Kohei Matsumoto, Kenshi Matsumoto, Sumio Watanabe, Naomi Uemura, Tsutomu Chiba, Akihito Nagahara
Gastric epithelial neoplasm of fundic-gland mucosa lineage: proposal for a new classification in association with gastric adenocarcinoma of fundic-gland type. Journal of gastroenterology 56 (9) (2021)
Hiroya Ueyama, Yusuke Kato, Yoichi Akazawa, Noboru Yatagai, Hiroyuki Komori, Tsutomu Takeda, Kohei Matsumoto, Kumiko Ueda, Kenshi Matsumoto, Mariko Hojo, Takashi Yao, Akihito Nagahara, Tomohiro Tada
Application of artificial intelligence using a convolutional neural network for diagnosis of early gastric cancer based on magnifying endoscopy with narrow-band imaging. Journal of gastroenterology and hepatology 36 (2) (2020)
Tsutomu Takeda, Kenshi Matsumoto, Akihito Nagahara, Hiroyuki Komori, Yoichi Akazawa, Yuta Nakagawa, Kentaro Izumi, Kohei Matsumoto, Hiroya Ueyama, Yuji Shimada, Daisuke Asaoka, Mariko Hojo, Takashi Yao, Sumio Watanabe
Effect of Esophageal Endoscopic Submucosal Dissection on Motility and Symptoms: A Prospective Study. Gastroenterology research and practice 2018 (2018)

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Publication Activity (10 Years)

Top Topics

Top Venues

Hiroya Ueyama