Koichi Doi

690 total citations
19 papers, 545 citations indexed

About

Koichi Doi is a scholar working on Hepatology, Surgery and Epidemiology. According to data from OpenAlex, Koichi Doi has authored 19 papers receiving a total of 545 indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Hepatology, 9 papers in Surgery and 8 papers in Epidemiology. Recurrent topics in Koichi Doi's work include Hepatocellular Carcinoma Treatment and Prognosis (13 papers), Cholangiocarcinoma and Gallbladder Cancer Studies (6 papers) and Liver Disease Diagnosis and Treatment (6 papers). Koichi Doi is often cited by papers focused on Hepatocellular Carcinoma Treatment and Prognosis (13 papers), Cholangiocarcinoma and Gallbladder Cancer Studies (6 papers) and Liver Disease Diagnosis and Treatment (6 papers). Koichi Doi collaborates with scholars based in Japan. Koichi Doi's co-authors include Toru Beppu, Takaaki Akaike, Hiromitsu Hayashi, Hideo Baba, Hiroshi Takamori, Hirohisa Okabe, Shigemoto Fujii, Minetaro Ogawa, Shin‐ichiro Fujii and Hiroshi Maeda and has published in prestigious journals such as Journal of Clinical Oncology, Cancer and British Journal of Cancer.

In The Last Decade

Koichi Doi

19 papers receiving 536 citations

Peers

Koichi Doi

HEPAT

EPIDE

SURGE

PHYSI

Hiromitsu Nagata Japan

Dawn Q. Chong Singapore

Yasushi Shibasaki Japan

Insa S. Schroeder Germany

Tiancheng Luo China

Jean‐Michel Luccarini France

Clayton D. Knox United States

Yoshihiro Miyazaki Japan

Guido Pelosi Italy

Julia Müller Germany

Hiromitsu Nagata Japan

Koichi Doi

151 ×0.7

HEPAT

327 ×1.7

72 ×0.5

EPIDE

159 ×1.4

SURGE

35 ×0.4

PHYSI

Citations per year, relative to Koichi Doi Koichi Doi (= 1×) peers Hiromitsu Nagata

Countries citing papers authored by Koichi Doi

Since Specialization

Citations

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

Fields of papers citing papers by Koichi Doi

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Koichi Doi

This figure shows the co-authorship network connecting the top 25 collaborators of Koichi Doi. A scholar is included among the top collaborators of Koichi Doi 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 Koichi Doi. Koichi Doi is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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19 of 19 papers shown

Masuda, Toshiro, Toru Beppu, Koichi Doi, et al.. (2015). Repeated hepatic resections and radio-frequency ablations may improve the survival of adult undifferentiated embryonal sarcoma of the liver: report of two cases. Surgical Case Reports. 1(1). 55–55. 7 indexed citations

Doi, Koichi, Toru Beppu, Takatoshi Ishiko, et al.. (2015). Endoscopic radiofrequency ablation in elderly patients with hepatocellular carcinoma.. PubMed. 35(5). 3033–40. 12 indexed citations

Hayashi, Hiromitsu, Toru Beppu, Hirohisa Okabe, et al.. (2012). Combined measurements of serum bile acid level and splenic volume may be useful to noninvasively assess portal venous pressure. Journal of Gastroenterology. 47(12). 1336–1341. 13 indexed citations

Beppu, Toru, Hirohisa Okabe, Kazutoshi Okabe, et al.. (2012). Multiple utilities of portal vein embolization for patients with hepatocellular carcinoma.. Journal of Clinical Oncology. 30(4_suppl). 319–319. 1 indexed citations

Masuda, Toshiro, Toru Beppu, Shigeki Nakagawa, et al.. (2012). Assessment of safety in hepatic resection for hepatocellular carcinoma focusing on indirect hyperbilirubinemia. Journal of Hepato-Biliary-Pancreatic Sciences. 20(3). 370–374. 1 indexed citations

Beppu, Toru, Akira Chikamoto, Koichi Doi, et al.. (2012). Comparison between hepatic resection and radiofrequency ablation as first‐line treatment for solitary small‐sized hepatocellular carcinoma of 3 cm or less. Hepatology Research. 43(8). 853–864. 68 indexed citations

Imai, Katsunori, Toru Beppu, Akira Chikamoto, et al.. (2012). Radiofrequency ablation versus hepatic resection as an initial treatment for solitary small-sized hepatocellular carcinoma.. Journal of Clinical Oncology. 30(4_suppl). 290–290. 1 indexed citations

Beppu, Toru, Hiromitsu Hayashi, Hirohisa Okabe, et al.. (2011). Liver functional volumetry for portal vein embolization using a newly developed 99mTc-galactosyl human serum albumin scintigraphy SPECT–computed tomography fusion system. Journal of Gastroenterology. 46(7). 938–943. 81 indexed citations

Masuda, Toshiro, Toru Beppu, Takatoshi Ishiko, et al.. (2008). Intrahepatic dissemination of hepatocellular carcinoma after local ablation therapy. Journal of Hepato-Biliary-Pancreatic Surgery. 15(6). 589–595. 39 indexed citations

10.

Suyama, Koichi, Toru Beppu, K. Matsumoto, et al.. (2007). Spontaneous rupture of adrenocortical carcinoma. The American Journal of Surgery. 194(1). 77–78. 8 indexed citations

11.

Beppu, Toru, Takatoshi Ishiko, Toshiro Masuda, et al.. (2007). Endoscopic Local Ablation Therapy (ELAT) for Hepatocellular Carcinoma. Thermal Medicine(Japanese Journal of Hyperthermic Oncology). 23(2). 63–70. 6 indexed citations

12.

Beppu, Toru, Toshiro Masuda, Takatoshi Ishiko, et al.. (2007). Radio-frequency ablation (RFA) is equivalent in therapeutic effect but safer compared to microwave coagulation therapy (MCT) for hepatocellular carcinoma. Journal of Clinical Oncology. 25(18_suppl). 15064–15064. 6 indexed citations

13.

Doi, Koichi, Takaaki Akaike, Shigemoto Fujii, et al.. (2003). Heme oxygenase and nitric oxide synthase on tumor growth. International Congress Series. 1255. 265–268. 3 indexed citations

14.

Beppu, Toru, Yoshio Haga, Koichi Doi, Takatoshi Ishiko, & Michio Ogawa. (2003). Accelerated cytokine responses of elderly patients result in a significant increase of systemic inflammatory response syndrome and postoperative complications following gastrointestinal surgery. International Congress Series. 1255. 143–147. 1 indexed citations

15.

Beppu, Toru, et al.. (2003). Molecular detection of occult cancer cells in patients with liver tumors treated by local ablation therapy. International Congress Series. 1255. 119–123. 1 indexed citations

16.

Doi, Koichi, Toru Beppu, Takatoshi Ishiko, et al.. (2002). [Treatment of hepatocellular carcinoma--partial hepatic resection under hand-assisted laparoscopic surgery and local ablation therapy with ethanol and radio frequency].. PubMed. 29(12). 2425–8. 1 indexed citations

17.

Beppu, Toru, Koichi Doi, Takatoshi Ishiko, et al.. (2001). [Efficacy of local ablation therapy for liver metastasis from colorectal cancer--radiofrequency ablation and microwave coagulation therapy].. PubMed. 102(5). 390–7. 11 indexed citations

18.

Doi, Koichi, Takaaki Akaike, Shin‐ichiro Fujii, et al.. (1999). Induction of haem oxygenase-1 by nitric oxide and ischaemia in experimental solid tumours and implications for tumour growth. British Journal of Cancer. 80(12). 1945–1954. 151 indexed citations

19.

Doi, Koichi, Takaaki Akaike, Shigemoto Fujii, et al.. (1996). Excessive production of nitric oxide in rat solid tumor and its implication in rapid tumor growth. Cancer. 77(8). 1598–1604. 134 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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