Shigeru Okuda

2.4k total citations
83 papers, 1.9k citations indexed

About

Shigeru Okuda is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Oncology. According to data from OpenAlex, Shigeru Okuda has authored 83 papers receiving a total of 1.9k indexed citations (citations by other indexed papers that have themselves been cited), including 39 papers in Surgery, 34 papers in Pulmonary and Respiratory Medicine and 16 papers in Oncology. Recurrent topics in Shigeru Okuda's work include Gastric Cancer Management and Outcomes (21 papers), Helicobacter pylori-related gastroenterology studies (21 papers) and Pancreatic and Hepatic Oncology Research (13 papers). Shigeru Okuda is often cited by papers focused on Gastric Cancer Management and Outcomes (21 papers), Helicobacter pylori-related gastroenterology studies (21 papers) and Pancreatic and Hepatic Oncology Research (13 papers). Shigeru Okuda collaborates with scholars based in Japan and United States. Shigeru Okuda's co-authors include Masaharu Tatsuta, Hiroyasu Iishi, Hiroshi Tamura, Haruo Taniguchi, Hisako Yamamura, Reiko Yamamoto, Hiroshi Kasugai, Sanai Noguchi, Akihiko Nakaizumi and Tadao Itoh and has published in prestigious journals such as Physical review. B, Condensed matter, Gastroenterology and JNCI Journal of the National Cancer Institute.

In The Last Decade

Shigeru Okuda

79 papers receiving 1.8k citations

Peers

Shigeru Okuda

SURGE

ONCOL

PRM

EPIDE

HEPAT

Toru Yasutake Japan

Boris W. Kuvshinoff United States

Naoki Muguruma Japan

Kensuke Otani Japan

L Hafström Sweden

Shigenobu Emoto Japan

Yoshifumi Beck Japan

Yoshiro Ogata Japan

Yasuo Hirono Japan

K Arai Japan

Toru Yasutake Japan

Shigeru Okuda

663 ×0.7

SURGE

685 ×1.0

ONCOL

379 ×0.7

PRM

179 ×0.4

EPIDE

265 ×0.7

HEPAT

Citations per year, relative to Shigeru Okuda Shigeru Okuda (= 1×) peers Toru Yasutake

Countries citing papers authored by Shigeru Okuda

Since Specialization

Citations

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

Fields of papers citing papers by Shigeru Okuda

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Shigeru Okuda

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

Tatsuta, Masaharu, Hiroyasu Iishi, Akihiko Nakaizumi, et al.. (1993). Fundal atrophic gastritis as a risk factor for gastric cancer. International Journal of Cancer. 53(1). 70–74. 89 indexed citations

Nakaizumi, Akihiko, Masaharu Tatsuta, Hiroyuki Uehara, et al.. (1992). A prospective trial of early detection of pancreatic cancer by ultrasonographic examination combined with measurement of serum elastase 1. Cancer. 69(4). 936–940. 17 indexed citations

Tanaka, Sachiko, Tsugio Kitamura, Makoto Fujita, et al.. (1992). Intrahepatic venous and portal venous aneurysms examined by color Doppler flow imaging. Journal of Clinical Ultrasound. 20(2). 89–98. 24 indexed citations

Nakaizumi, Akihiko, Masaharu Tatsuta, Hiroyuki Uehara, et al.. (1992). Cytologic examination of pure pancreatic juice in the diagnosis of pancreatic carcinoma. The endoscopic retrograde intraductal catheter aspiration cytologic technique. Cancer. 70(11). 2610–2614. 88 indexed citations

Okuda, Shigeru, et al.. (1991). Photodynamic Therapy with an Excimer Dye Laser for Superficial Esophageal Cancer and Early Gastric Cancer.. Nippon Laser Igakkaishi. 12(Supplement). 107–110. 1 indexed citations

Tsukuma, Hideaki, Tomohiko Hiyama, Akira Oshima, et al.. (1990). A case‐control study of hepatocellular carcinoma in osaka, Japan. International Journal of Cancer. 45(2). 231–236. 60 indexed citations

Ichii, Makoto, et al.. (1989). The indication of HpD photodynamic therapy for gastric cancer and the limitation. Nippon Laser Igakkaishi. 10(3). 103–104. 1 indexed citations

Ishikawa, Hideki, et al.. (1988). Endoscopic polypectomy in treatment of rectal carcinoid tumors. Acta gastro-enterologica belgica. 30(12). 1 indexed citations

Ichii, Makoto, et al.. (1988). Photodynamic therapy of early gastric cancer with a copper vapor-dye laser. Nippon Laser Igakkaishi. 9(3). 125–126. 4 indexed citations

10.

Tatsuta, Masaharu, Hiroyasu Iishi, & Shigeru Okuda. (1988). Effect of cigarette smoking on extent of acid-secreting area and intestinal metaplasia in the stomach. Digestive Diseases and Sciences. 33(1). 23–29. 19 indexed citations

11.

Ichii, Makoto, et al.. (1987). Detailed diagnosis on gastric cancer with infrared laser endoscopy. Nippon Laser Igakkaishi. 7(3). 99–100. 2 indexed citations

12.

Tatsuta, Masaharu, Hisako Yamamura, Hiroyasu Iishi, Hiroshi Kasugai, & Shigeru Okuda. (1986). Value of Serum Alpha-Fetoprotein and Ferritin in the Diagnosis of Hepatocellular Carcinoma. Oncology. 43(5). 306–310. 25 indexed citations

13.

Iishi, Hiroyasu, et al.. (1984). ENDOSCOPIC DIAGNOSIS AND A TRIAL OF CHEMOTHERAPY OF SMALL CELL CARCINOMA OF THE ESOPHAGUS. Acta gastro-enterologica belgica. 26(10). 1662–1670. 6 indexed citations

14.

Tatsuta, Masaharu, Shigeru Okuda, & Haruo Taniguchi. (1982). DEVELOPMENT AND EXTENSION OF THE ATROPHIC GASTRITIS AND INTESTINAL METAPLASIA IN THE UPPER PORTION OF THE STOMACH. Acta gastro-enterologica belgica. 24(9). 1381–1390. 2 indexed citations

15.

Iishi, Hiroyasu, Masaharu Tatsuta, Miyako Baba, Shigeru Okuda, & Haruo Taniguchi. (1982). Dynamics of the adsorption of nitrocyanamide salts from aqueous solutions onto active carbon. PubMed. 47(18). 4890–3. 23 indexed citations

16.

Ichii, Makoto, Masaharu Tatsuta, & Shigeru Okuda. (1982). Phototoxic Effect of Dye Laser Irradiation on Gastric Cancer. Nippon Laser Igakkaishi. 3(1). 59–64.

17.

Okuda, Shigeru, et al.. (1979). A NEW TECHNIQUE OF GASTROCAMERA BY USING INFRARED COLOR FILM. Acta gastro-enterologica belgica. 21(5). 511–519. 1 indexed citations

18.

Tatsuta, Masaharu, Tadao Itoh, Shigeru Okuda, Hiroshi Tamura, & Hisako Yamamura. (1977). Effect of fundusectomy on serum and antral gastrin levels in rats.. Munich Personal RePEc Archive (Ludwig Maximilian University of Munich). 72(1). 78–81. 43 indexed citations

19.

Okuda, Shigeru, et al.. (1977). ENDOSCOPIC STUDY ON MALIGNANT CHANGE OF ULCER BY LONG TERM FOLLOW UP BIOPSY. Acta gastro-enterologica belgica. 19(5). 522–531. 1 indexed citations

20.

Otani, Toru, et al.. (1974). Submucosal injection of ethanol under direct vision for the treatment of gastric protuberant lesion. Acta gastro-enterologica belgica. 16(5). 572–579. 4 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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