Ryu Ishihara

11.9k total citations · 1 hit paper
302 papers, 7.2k citations indexed

About

Ryu Ishihara is a scholar working on Pulmonary and Respiratory Medicine, Surgery and Gastroenterology. According to data from OpenAlex, Ryu Ishihara has authored 302 papers receiving a total of 7.2k indexed citations (citations by other indexed papers that have themselves been cited), including 254 papers in Pulmonary and Respiratory Medicine, 223 papers in Surgery and 59 papers in Gastroenterology. Recurrent topics in Ryu Ishihara's work include Gastric Cancer Management and Outcomes (217 papers), Esophageal Cancer Research and Treatment (146 papers) and Esophageal and GI Pathology (104 papers). Ryu Ishihara is often cited by papers focused on Gastric Cancer Management and Outcomes (217 papers), Esophageal Cancer Research and Treatment (146 papers) and Esophageal and GI Pathology (104 papers). Ryu Ishihara collaborates with scholars based in Japan, United States and China. Ryu Ishihara's co-authors include Noriya Uedo, Yoji Takeuchi, Hiroyasu Iishi, Koji Higashino, Sachiko Yamamoto, Masaharu Tatsuta, Noboru Hanaoka, Noriko Matsuura, Shunsuke Yamamoto and Tsuneo Oyama and has published in prestigious journals such as Journal of Clinical Oncology, SHILAP Revista de lepidopterología and Gastroenterology.

In The Last Decade

Ryu Ishihara

277 papers receiving 7.0k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Endoscopic submucosal dissection/endoscopic mucosal resection guidelines for esophageal cancer

2020 222 citations Ryu Ishihara, Toshiro Iizuka et al. Digestive Endoscopy profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Ryu Ishihara Japan	46	5.6k	4.9k	1.6k	1.3k	311	302	7.2k
Tomonori Yano Japan	31	3.1k 0.6×	2.8k 0.6×	439 0.3×	806 0.6×	331 1.1×	220	4.2k
Satoshi Tanabe Japan	34	3.1k 0.6×	2.2k 0.4×	1.4k 0.9×	860 0.7×	88 0.3×	185	4.4k
Soji Ozawa Japan	40	3.8k 0.7×	4.5k 0.9×	345 0.2×	1.5k 1.2×	349 1.1×	217	6.5k
Bryan Burmeister Australia	35	4.2k 0.8×	4.6k 0.9×	244 0.1×	2.4k 1.9×	460 1.5×	127	6.7k
Nobutoshi Ando Japan	31	3.4k 0.6×	3.8k 0.8×	246 0.2×	1.1k 0.9×	252 0.8×	96	5.2k
Gary W. Falk United States	52	4.6k 0.8×	9.1k 1.9×	3.1k 1.9×	607 0.5×	129 0.4×	310	10.1k
Jian‐Wei Xie China	34	3.0k 0.5×	1.8k 0.4×	1.3k 0.8×	1.4k 1.1×	193 0.6×	307	5.0k
Chang‐Ming Huang China	34	2.8k 0.5×	1.8k 0.4×	1.1k 0.7×	1.4k 1.0×	209 0.7×	326	5.0k
Chao‐Hui Zheng China	33	2.6k 0.5×	1.6k 0.3×	1.1k 0.7×	1.2k 0.9×	200 0.6×	276	4.3k
Hiroharu Yamashita Japan	36	2.1k 0.4×	2.0k 0.4×	817 0.5×	1.2k 0.9×	133 0.4×	186	4.2k

Countries citing papers authored by Ryu Ishihara

Since Specialization

Citations

This map shows the geographic impact of Ryu Ishihara's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Ryu Ishihara with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ryu Ishihara more than expected).

Fields of papers citing papers by Ryu Ishihara

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ryu Ishihara. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Ryu Ishihara. The network helps show where Ryu Ishihara may publish in the future.

Co-authorship network of co-authors of Ryu Ishihara

This figure shows the co-authorship network connecting the top 25 collaborators of Ryu Ishihara. A scholar is included among the top collaborators of Ryu Ishihara based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Ryu Ishihara. Ryu Ishihara is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Yoshii, Shunsuke, Takashi Kanesaka, Yasuhiro Tani, et al.. (2025). Endoscopic submucosal resection using a ligation band without injection for rectal neuroendocrine tumors (with video). Gastrointestinal Endoscopy. 103(2). 338–342.e1. 1 indexed citations

Ishimura, Norihisa, Nobuyuki Matsuhashi, Junko Fujisaki, et al.. (2025). Cancer Incidence in Japanese Patients With Long‐Segment Barrett's Esophagus—Japan Nationwide 10‐Year Prospective Cohort Study. Digestive Endoscopy. 38(1). e70070–e70070.

Ishihara, Ryu, Jun Nakamura, Takako Yoshii, et al.. (2025). Risk of Metastasis and Local Residual Cancer After Non‐Curative Endoscopic Submucosal Dissection for Esophageal Cancer. Digestive Endoscopy. 37(11). 1207–1214.

Matsueda, Katsunori, Noriya Uedo, Masanori Kitamura, et al.. (2025). Endoscopic features of gastric neuroendocrine tumors. DEN Open. 5(1). e70088–e70088.

Yoshii, Shunsuke, Yasuhiro Tani, Yoshiaki Ando, et al.. (2025). Tip‐In Underwater Endoscopic Mucosal Resection for Superficial Nonampullary Duodenal Epithelial Tumors ≤ 20 mm. Journal of Gastroenterology and Hepatology. 40(10). 2540–2546.

Xu, Jianming, Ken Kato, Richard Hubner, et al.. (2025). First-Line Tislelizumab Plus Chemotherapy for Esophageal Squamous Cell Carcinoma with Programmed Death-Ligand 1 Expression ≥ 1%: A Retrospective Analysis of RATIONALE-306. Advances in Therapy. 42(5). 2269–2284.

Visaggi, Pierfrancesco, Matteo Ghisa, Brigida Barberio, et al.. (2024). Gastro-esophageal diagnostic workup before bariatric surgery or endoscopic treatment for obesity: position statement of the International Society of Diseases of the Esophagus. Diseases of the Esophagus. 37(5). 1 indexed citations

Ishihara, Ryu. (2024). Surveillance for metachronous cancers after endoscopic resection of esophageal squamous cell carcinoma. Clinical Endoscopy. 57(5). 559–570. 2 indexed citations

Uedo, Noriya, et al.. (2024). Endoscopic evaluation of the oral cavity and pharynx: how to do it. Endoscopy. 56(S 01). E914–E915.

10.

Kadota, Tomohiro, Ryu Ishihara, Waku Hatta, et al.. (2023). Multi‐institutional questionnaire on treatment strategies for superficial entire circumferential esophageal squamous cell carcinoma. SHILAP Revista de lepidopterología. 3(1). e206–e206. 1 indexed citations

11.

Kanesaka, Takashi, Takahiro Inoue, Hiromu Fukuda, et al.. (2022). Boring biopsy with rapid on‐site evaluation for gastric gastrointestinal stromal tumor: A pilot study. JGH Open. 7(1). 68–71. 2 indexed citations

12.

Shichijo, Satoki, Shinjiro Yamaguchi, Dai Nakamatsu, et al.. (2022). Local recurrence after endoscopic resection of sessile serrated lesions: A multicenter prospective study by the Osaka Gut Forum. Journal of Gastroenterology and Hepatology. 37(12). 2306–2312. 3 indexed citations

13.

Ishihara, Ryu & Manabu Muto. (2022). Current status of endoscopic detection, characterization and staging of superficial esophageal squamous cell carcinoma. Japanese Journal of Clinical Oncology. 52(8). 799–805. 2 indexed citations

14.

Tani, Yasuhiro, Takashi Kanesaka, Yoji Takeuchi, et al.. (2022). Indication of emergency colonoscopy after colorectal endoscopic submucosal dissection: A proposal of hematochezia scale. Journal of Gastroenterology and Hepatology. 37(10). 1998–2003. 5 indexed citations

15.

Ishihara, Ryu, Takahiko Nakamura, Yasuhiro Tani, et al.. (2021). Positive predictive value of the clinical diagnosis of T1a‐epithelial/lamina propria esophageal cancer depends on lesion size. Digestive Endoscopy. 34(4). 782–790. 3 indexed citations

16.

Ohmori, Masayasu, Yasushi Yamasaki, Hiroyoshi Iwagami, et al.. (2021). Propensity score‐matched analysis of endoscopic resection for recurrent colorectal neoplasms: A pilot study. Journal of Gastroenterology and Hepatology. 36(9). 2568–2574. 9 indexed citations

17.

Inoue, Takahiro & Ryu Ishihara. (2020). Photodynamic Therapy for Esophageal Cancer. Clinical Endoscopy. 54(4). 494–498. 18 indexed citations

18.

Nakahira, Hiroko, Yoji Takeuchi, Takashi Kanesaka, Noriya Uedo, & Ryu Ishihara. (2019). Wide-field underwater EMR followed by line-assisted complete closure for a large duodenal adenoma. VideoGIE. 4(10). 469–471. 3 indexed citations

19.

Iwagami, Hiroyoshi, Yoji Takeuchi, Yasushi Yamasaki, et al.. (2019). Feasibility of underwater endoscopic mucosal resection and management of residues for superficial non‐ampullary duodenal epithelial neoplasms. Digestive Endoscopy. 32(4). 565–573. 35 indexed citations

20.

Yamasaki, Yasushi, Yoji Takeuchi, Minoru Kato, Noriya Uedo, & Ryu Ishihara. (2016). Line-assisted complete closure of large gastric mucosal defects by use of multiple clip-and-line technique. VideoGIE. 1(3). 49–50. 22 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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