Kouichi Nonaka

1.4k total citations
85 papers, 950 citations indexed

About

Kouichi Nonaka is a scholar working on Pulmonary and Respiratory Medicine, Surgery and Gastroenterology. According to data from OpenAlex, Kouichi Nonaka has authored 85 papers receiving a total of 950 indexed citations (citations by other indexed papers that have themselves been cited), including 70 papers in Pulmonary and Respiratory Medicine, 56 papers in Surgery and 37 papers in Gastroenterology. Recurrent topics in Kouichi Nonaka's work include Gastric Cancer Management and Outcomes (49 papers), Gastrointestinal Tumor Research and Treatment (30 papers) and Esophageal Cancer Research and Treatment (24 papers). Kouichi Nonaka is often cited by papers focused on Gastric Cancer Management and Outcomes (49 papers), Gastrointestinal Tumor Research and Treatment (30 papers) and Esophageal Cancer Research and Treatment (24 papers). Kouichi Nonaka collaborates with scholars based in Japan, Germany and China. Kouichi Nonaka's co-authors include Shomei Ryozawa, Tomoaki Tashima, Hiroto Kita, Nobuyuki Matsuhashi, Ken Ohata, Shinichi Ban, Yuki Tanisaka, Yohei Minato, Hajime Isomoto and Koji Nagata and has published in prestigious journals such as SHILAP Revista de lepidopterología, Gastrointestinal Endoscopy and Surgical Endoscopy.

In The Last Decade

Kouichi Nonaka

81 papers receiving 940 citations

Peers

Countries citing papers authored by Kouichi Nonaka

Since Specialization

Citations

This map shows the geographic impact of Kouichi Nonaka'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 Kouichi Nonaka with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Kouichi Nonaka more than expected).

Fields of papers citing papers by Kouichi Nonaka

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Kouichi Nonaka. 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 Kouichi Nonaka. The network helps show where Kouichi Nonaka may publish in the future.

Co-authorship network of co-authors of Kouichi Nonaka

This figure shows the co-authorship network connecting the top 25 collaborators of Kouichi Nonaka. A scholar is included among the top collaborators of Kouichi Nonaka 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 Kouichi Nonaka. Kouichi Nonaka 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

#	Work	Indexed citations
1	Comparison of Endoscopic and Artificial Intelligence Diagnoses for Predicting the Histological Healing of Ulcerative Colitis in a Real-World Clinical Setting 2024 ·Crohn s & Colitis 360 ·Teppei Omori, Tomoko Yamamoto, (unknown), (unknown), (unknown), Kouichi Nonaka, Yoji Nagashima, Shinichi Nakamura, Katsutoshi Tokushige	8
2	Endoscopic Image 2 Hours after PuraStat® Application: A Case of Achieving Hemostasis Using PuraStat® for Postgastric Lesion Biopsy Bleeding after Hemostatic Clips Failed 2023 ·SHILAP Revista de lepidopterología ·(unknown), Kouichi Nonaka, (unknown)	1
3	Comparison of the Ability of Artificial-Intelligence-Based Computer-Aided Detection (CAD) Systems and Endoscopists to Detect Colorectal Neoplastic Lesions on Endoscopy Video 2023 ·Journal of Clinical Medicine ·(unknown), Kouichi Nonaka, (unknown), (unknown), (unknown), (unknown), (unknown), Teppei Omori, (unknown), Hajime Isomoto, Katsutoshi Tokushige	5
4	A case of reflux laryngitis after iodine staining for esophageal squamous cell carcinoma 2023 ·SHILAP Revista de lepidopterología ·(unknown), (unknown), (unknown), Kouichi Nonaka	0
5	Endoscopic Features of Autoimmune Gastritis: Focus on Typical Images and Early Images 2022 ·Journal of Clinical Medicine ·(unknown), Kouichi Nonaka	16
6	A case of early autoimmune gastritis with characteristic endoscopic findings 2021 ·Clinical Journal of Gastroenterology ·(unknown), Kenshi Yao, Hiroshi Hashimoto, (unknown), (unknown), Ayako Yamamoto, Kana Yamamoto, Kouichi Nonaka, Shinichi Nakamura, Katsutoshi Tokushige	15
7	Peroral cholangioscopy–guided probe-based confocal laser endomicroscopy for preoperative diagnosis of pancreatic cancer in a patient with surgically altered anatomy 2020 ·VideoGIE ·Yuki Tanisaka, Shomei Ryozawa, Kouichi Nonaka, Shinichi Ban, Akashi Fujita	2
8	Duodenal endoscopic submucosal dissection for a large protruded lesion located just behind the pyloric ring with a scissor-type knife 2019 ·VideoGIE ·Tomoaki Tashima, Kouichi Nonaka, Shomei Ryozawa, T Fujino	4
9	In vivo diagnosis of intraductal papillary mucinous neoplasm with per-oral pancreatoscopy–guided confocal laser endomicroscopy 2018 ·VideoGIE ·Yuki Tanisaka, Shomei Ryozawa, Kouichi Nonaka, Shinichi Ban, Tomoaki Tashima	2
10	Endoscopic purse-string suturing with multiple over-the-scope clips for closure of a large mucosal defect after duodenal endoscopic submucosal dissection 2018 ·Digestive and Liver Disease ·Tomoaki Tashima, Kouichi Nonaka, Shomei Ryozawa, Yuki Tanisaka	3
11	Endoscopic purse-string suturing with an over-the-scope clip for closure of a large mucosal defect after gastric ESD 2018 ·Digestive and Liver Disease ·Tomoaki Tashima, Kouichi Nonaka, Shomei Ryozawa, Yuki Tanisaka	4
12	Acute hemorrhagic gastritis after nivolumab treatment 2017 ·Gastrointestinal Endoscopy ·Masanori Kobayashi, Ou Yamaguchi, Koji Nagata, Kouichi Nonaka, Shomei Ryozawa	38
13	Esophageal Endoscopic Submucosal Dissection Assisted by an Overtube with a Traction Forceps: An Animal Study 2016 ·Gastroenterology Research and Practice ·Ken Ohata, Kuang‐I Fu, Eiji Sakai, Kouichi Nonaka, Tomoaki Tashima, Yohei Minato, Akiko Ohno, Takafumi Ito, Yosuke Tsuji, Hideyuki Chiba, (unknown), (unknown), (unknown), Junichi Fukushima, Nobuyuki Matsuhashi	5
14	Usefulness of training using animal models for colorectal endoscopic submucosal dissection: is experience performing gastric ESD really needed? 2016 ·SHILAP Revista de lepidopterología ·Ken Ohata, Kouichi Nonaka, (unknown), (unknown), Maiko Takita, Yohei Minato, Tomoaki Tashima, Eiji Sakai, Takashi Muramoto, Yasushi Matsuyama, Yoshimitsu Hiejima, Nobuyuki Matsuhashi	31
15	Novel technique of endoscopic full-thickness resection for superficial nonampullary duodenal neoplasms to avoid intraperitoneal tumor dissemination 2016 ·SHILAP Revista de lepidopterología ·Ken Ohata, Kouichi Nonaka, Eiji Sakai, Yohei Minato, Hitoshi Satodate, Kazuteru Watanabe, Nobuyuki Matsuhashi	2
16	Role of narrow band imaging in endoscopic submucosal dissection 2012 ·World Journal of Gastrointestinal Endoscopy ·Kouichi Nonaka	13
17	A case of gastric mucosa-associated lymphoid tissue lymphoma in which magnified endoscopy with narrow band imaging was useful in the diagnosis 2012 ·World Journal of Gastrointestinal Endoscopy ·Kouichi Nonaka	25
18	Brain Metastasis from Gastrointestinal Stromal Tumor: A Case Report and Review of the Literature 2011 ·Case Reports in Gastroenterology ·Hideaki Naoe, (unknown), (unknown), (unknown), (unknown), Hirokazu Saito, (unknown), (unknown), Kouichi Nonaka, (unknown), (unknown), (unknown), Kazunori Yokomine, Hideki Tanaka, Hiroyasu Nagahama, Kouichi Sakurai, Motohiko Tanaka, Ken-ichi Iyama, Hideo Baba, Yutaka Sasaki	14
19	PROSPECTIVE STUDY OF THE EVALUATION OF THE USEFULNESS OF TUMOR TYPING BY NARROW BAND IMAGING FOR THE DIFFERENTIAL DIAGNOSIS OF GASTRIC ADENOMA AND WELL-DIFFERENTIATED ADENOCARCINOMA 2010 ·Digestive Endoscopy ·Kouichi Nonaka, (unknown), Shinichi Ban, (unknown), (unknown), Koji Nagata, Yasutoshi Ochiai, Osamu Togawa, Masamitsu Nakao, Makoto Nishimura, Keiko Ishikawa, Yutaka Sasaki, Hiroto Kita	32
20	Gastrointestinal: Gastric mucosa‐associated lymphoma presented with unique vascular features on magnified endoscopy combined with narrow‐band imaging 2009 ·Journal of Gastroenterology and Hepatology ·Kouichi Nonaka, Keiko Ishikawa, (unknown), Takaki Sakurai, Yousuke Nakai, Masamitsu Nakao, (unknown), (unknown), Hiroto Kita	20

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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