Tomoyoshi Okamoto

1.4k total citations
100 papers, 962 citations indexed

About

Tomoyoshi Okamoto is a scholar working on Surgery, Oncology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Tomoyoshi Okamoto has authored 100 papers receiving a total of 962 indexed citations (citations by other indexed papers that have themselves been cited), including 77 papers in Surgery, 43 papers in Oncology and 27 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Tomoyoshi Okamoto's work include Pancreatic and Hepatic Oncology Research (24 papers), Colorectal Cancer Surgical Treatments (11 papers) and Hernia repair and management (10 papers). Tomoyoshi Okamoto is often cited by papers focused on Pancreatic and Hepatic Oncology Research (24 papers), Colorectal Cancer Surgical Treatments (11 papers) and Hernia repair and management (10 papers). Tomoyoshi Okamoto collaborates with scholars based in Japan and United States. Tomoyoshi Okamoto's co-authors include Katsuhiko Yanaga, Shinji Onda, Shuichi Fujioka, Katsuhito Suwa, Asaki Hattori, Naoki Suzuki, Yasuro Futagawa, Takeshi Gocho, Takeyuki Misawa and Hisao Tajiri and has published in prestigious journals such as SHILAP Revista de lepidopterología, Transplantation and Gastrointestinal Endoscopy.

In The Last Decade

Tomoyoshi Okamoto

84 papers receiving 934 citations

Peers

Tomoyoshi Okamoto

SURGE

ONCOL

PRM

CVPR

Shinji Onda Japan

Hiroyuki Egi Japan

Yoshihiro Nagao Japan

Michael H. Rosenthal United States

Yasuro Futagawa Japan

Masazumi Okajima Japan

Carla Cappelli Italy

Franck Vandenbroucke‐Menu Canada

Qingyong Xu United States

Nicolas Golse France

Shinji Onda Japan

Tomoyoshi Okamoto

404 ×0.6

SURGE

356 ×1.0

ONCOL

147 ×0.6

PRM

142 ×1.0

CVPR

106 ×0.9

Citations per year, relative to Tomoyoshi Okamoto Tomoyoshi Okamoto (= 1×) peers Shinji Onda

Countries citing papers authored by Tomoyoshi Okamoto

Since Specialization

Citations

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

Fields of papers citing papers by Tomoyoshi Okamoto

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Tomoyoshi Okamoto

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

Furukawa, Kenei, Michinori Matsumoto, Yasuro Futagawa, et al.. (2024). Osteosarcopenia impacts treatment outcomes for Barcelona Cancer Liver Classification stage A hepatocellular carcinoma. Surgical Oncology. 53. 102043–102043. 3 indexed citations

Matsumoto, Michinori, Kyohei Abe, Yasuro Futagawa, et al.. (2021). New Scoring System for Prediction of Surgical Difficulty During Laparoscopic Cholecystectomy After Percutaneous Transhepatic Gallbladder Drainage. Annals of Gastroenterological Surgery. 6(2). 296–306. 6 indexed citations

Tabei, Isao, et al.. (2020). Male breast metastasis of ureteral cancer: a case report. SHILAP Revista de lepidopterología. 6(1). 58–58. 3 indexed citations

Kazama, Takashi, Naotake Funamizu, Shinji Onda, et al.. (2017). Subareolar breast abscess in male patients: a report of two patients with a literature review. SHILAP Revista de lepidopterología. 3(1). 128–128. 9 indexed citations

Ito, Ryusuke, et al.. (2014). A Case of Adenosquamous Carcinoma of the Extrahepatic Bile Duct. Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association). 75(1). 219–222.

Onda, Shinji, et al.. (2013). Portal Vein Thrombosis Caused by Appendicitis Successfully Treated with Conservative Therapy^|^mdash;A Case Report^|^mdash;. Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association). 74(11). 3063–3067.

Suwa, Katsuhito, et al.. (2013). Recurrent Perineal Hernia after Abdominal Perineal Resection Repaired with Kugel Patch ^|^mdash;A Case Report^|^mdash;. Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association). 74(7). 2002–2007.

Fujita, Akihiko, Tetsuya Yamagata, Katsuhito Suwa, et al.. (2013). A Case of Early Carcinoma of the Appendix Diagnosed by Colonoscopic Examination. The Japanese Journal of Gastroenterological Surgery. 46(7). 530–537. 1 indexed citations

Sugano, Hiroshi, et al.. (2012). Hemorrhagic stomal varices after balloon-occluded retrograde transvenous obliteration: a case report. Nihon Daicho Komonbyo Gakkai Zasshi. 65(7). 376–381.

10.

Suwa, Katsuhito, et al.. (2012). Clinical Evaluation of Gastro-intestinal Emergency Operations for Elderly Patients over 80 Years. Nihon Gekakei Rengo Gakkaishi (Journal of Japanese College of Surgeons). 37(1). 24–28.

11.

Tanaka, Yujiro, et al.. (2012). A case of cronkhite-canada syndrome associated with gastric cancer. Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association). 73(4). 847–851. 1 indexed citations

12.

Onda, Shinji, Tomoyoshi Okamoto, Shuichi Fujioka, et al.. (2012). Histopathologically Proven Autoimmune Pancreatitis Mimicking Neuroendocrine Tumor or Pancreatic Cancer. Case Reports in Gastroenterology. 6(1). 40–46. 3 indexed citations

13.

Suwa, Katsuhito, Kazuo Kitagawa, Akihiko Fujita, et al.. (2010). Repair of Recurrent Parastomal Hernia with a Component Separation Technique: A Case Report. Nihon Daicho Komonbyo Gakkai Zasshi. 63(4). 228–234. 2 indexed citations

14.

Suwa, Katsuhito, et al.. (2010). A Case of Nonincarcerated Bilateral Metachronous Spigelian Hernia. The Japanese Journal of Gastroenterological Surgery. 43(4). 454–459. 2 indexed citations

15.

Onda, Shinji, et al.. (2009). A Case of Splenic Pseudoaneurysm perforating into the Stomach by Recurrent Carcinoma of the Pancreas. The Japanese Journal of Gastroenterological Surgery. 42(6). 663–668. 2 indexed citations

16.

Maeda, Koji, et al.. (2009). A Case of Allergic Granulomatous Angitis Causing Small Intestinal Perforation. The Japanese Journal of Gastroenterological Surgery. 42(5). 546–550. 3 indexed citations

17.

Okamoto, Tomoyoshi, et al.. (2008). [Stop the "surgeon shortage" what could be done and what should be done right now. Series 3: correction of uneven distribution of doctors].. PubMed. 109(2). 115–6. 2 indexed citations

18.

Okamoto, Tomoyoshi, Takeshi Gocho, Yasuro Futagawa, et al.. (2008). Does preoperative pancreatic duct stenting prevent pancreatic fistula after surgery? A cohort study. International Journal of Surgery. 6(3). 210–213. 10 indexed citations

19.

Shiba, Hiroaki, Tomoyoshi Okamoto, Yasuro Futagawa, et al.. (2006). Adenovirus Vector-Mediated Gene Transfer Using Degradable Starch Microspheres for Hepatocellular Carcinoma in Rats. Journal of Surgical Research. 133(2). 193–196. 14 indexed citations

20.

Inagaki, Yoshinori, et al.. (1993). A Case Report of Giant Hemangioma of the Liver with the Risk of Shifting to Kasabach-Merritt Syndrome.. The Japanese Journal of Gastroenterological Surgery. 26(3). 904–908.

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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