Koji Tomiyama

3.2k total citations
71 papers, 2.0k citations indexed

About

Koji Tomiyama is a scholar working on Surgery, Hepatology and Molecular Biology. According to data from OpenAlex, Koji Tomiyama has authored 71 papers receiving a total of 2.0k indexed citations (citations by other indexed papers that have themselves been cited), including 51 papers in Surgery, 33 papers in Hepatology and 14 papers in Molecular Biology. Recurrent topics in Koji Tomiyama's work include Organ Transplantation Techniques and Outcomes (32 papers), Liver Disease and Transplantation (19 papers) and Hepatocellular Carcinoma Treatment and Prognosis (15 papers). Koji Tomiyama is often cited by papers focused on Organ Transplantation Techniques and Outcomes (32 papers), Liver Disease and Transplantation (19 papers) and Hepatocellular Carcinoma Treatment and Prognosis (15 papers). Koji Tomiyama collaborates with scholars based in United States, Japan and Canada. Koji Tomiyama's co-authors include Noriko Murase, Atsunori Nakao, Yasuhiro Fujimoto, Shinji Üemoto, Kohei Ogawa, Toshimi Kaido, Takashi Ito, Atsushi Ikeda, Donna B. Stolz and Eisuke Nishio and has published in prestigious journals such as Journal of Clinical Oncology, Hepatology and Annals of Surgery.

In The Last Decade

Koji Tomiyama

66 papers receiving 1.9k citations

Peers

Countries citing papers authored by Koji Tomiyama

Since Specialization

Citations

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

Fields of papers citing papers by Koji Tomiyama

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Koji Tomiyama

This figure shows the co-authorship network connecting the top 25 collaborators of Koji Tomiyama. A scholar is included among the top collaborators of Koji Tomiyama 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 Koji Tomiyama. Koji Tomiyama 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	The urgent need for standardization in liver transplantation for unresectable colorectal liver metastases in the United States 2025 ·American Journal of Transplantation ·(unknown), Kazunari Sasaki, (unknown), (unknown), (unknown), Luis I. Ruffolo, Yutaka Endo, (unknown), Koji Tomiyama, Anji Wall, (unknown)	2
2	Development and validation of a machine-learning model to reduce futile procurements in donations after circulatory death in liver transplantation in the USA: a multicentre study 2025 ·The Lancet Digital Health ·(unknown), (unknown), (unknown), Daniel J. Firl, Chase J. Wehrle, Yuki Bekki, (unknown), Jiro Kusakabe, (unknown), Yutaka Endo, (unknown), Jenny H. Pan, Masaru Kubota, Koji Tomiyama, Masato Fujiki, Magdy Attia, Marc L. Melcher, Kazunari Sasaki	0
3	Sex-based differences in survival after liver transplantation for colorectal cancer liver metastases: A multivariable analysis 2025 ·JHEP Reports ·Alessandro Vitale, Jacopo Lanari, Umberto Cillo, (unknown), Alessandro Rovetta, Mohammad Alì Mansournia, Matteo Cescon, Matteo Serenari, Federico Aucejo, Bassam Estfan, (unknown), Samuele Iesari, Vincenzo Mazzaferro, Carlo Sposito, Roberto Hernandez‐Alejandro, Koji Tomiyama, Morten Hagness, Svein Dueland, Pål‐Dag Line	2
4	Updates on Liquid Biopsy and ctDNA in Transplant Oncology 2025 ·Cancers ·(unknown), (unknown), (unknown), Koji Tomiyama, Yuki Bekki, Roberto Hernandez‐Alejandro	2
5	The Rochester Protocol for living donor liver transplantation of unresectable colorectal liver metastasis: A 5-year report on selection, approval, and outcomes 2024 ·American Journal of Transplantation ·(unknown), (unknown), Luis I. Ruffolo, Anthony Loria, Yutaka Endo, (unknown), (unknown), (unknown), (unknown), (unknown), Richard F. Dunne, Karen Pineda‐Solís, (unknown), Mark S. Orloff, Koji Tomiyama, Roberto Hernandez‐Alejandro	6
6	Neoadjuvant pemigatinib as a bridge to living donor liver transplantation for intrahepatic cholangiocarcinoma with FGFR2 gene rearrangement 2024 ·American Journal of Transplantation ·(unknown), Richard F. Dunne, (unknown), (unknown), Aram F. Hezel, Xiaoyan Liao, (unknown), Bandar Al-Judaibi, Mark S. Orloff, Roberto Hernandez‐Alejandro, Koji Tomiyama	3
7	Inferior Survival Is Associated With Socioeconomic Deprivation in Hepatocellular Carcinoma 2022 ·Journal of Surgical Research ·Luis I. Ruffolo, (unknown), (unknown), (unknown), (unknown), (unknown), Brian A. Belt, Paul R. Burchard, (unknown), M. Katherine Dokus, (unknown), Koji Tomiyama, (unknown), Karen Pineda‐Solís, Roberto Hernandez‐Alejandro	14
8	A case of desensitization of sorafenib after tumor lysis syndrome and erythema multiform in the patient with advanced hepatocellular carcinoma 2014 ·Kanzo ·(unknown), Etsuro Hatano, Koji Tomiyama, (unknown), (unknown), Yasuhiro Fujimoto, Masaki Mizumoto, Shinji Üemoto	2
9	Section 12. Living Donor Liver Transplantation for Patients with High Model for End-stage Liver Disease Scores and Acute Liver Failure 2014 ·Transplantation ·Toshimi Kaido, Koji Tomiyama, Kohei Ogawa, Yasuhiro Fujimoto, Takashi Ito, Akira Mori, Shinji Üemoto	1
10	Usefulness of the Kyoto criteria as expanded selection criteria for liver transplantation for hepatocellular carcinoma 2013 ·Surgery ·Toshimi Kaido, Kohei Ogawa, Akira Mori, Yasuhiro Fujimoto, Takashi Ito, Koji Tomiyama, Yasutsugu Takada, Shinji Üemoto	137
11	Implications of a positive crossmatch in liver transplantation: A 20-year review# 2011 ·Liver Transplantation ·Richard Ruiz, Koji Tomiyama, Jeffrey Campsen, Robert M. Goldstein, Marlon F. Levy, Greg J. McKenna, Nicholas Onaca, Brian Susskind, G. Weldon Tillery, Göran B. Klintmalm	33
12	Long-Term Follow-Up of Liver Transplantation for Budd-Chiari Syndrome With Antithrombotic Therapy Based on the Etiology 2011 ·Transplantation ·Srinath Chinnakotla, Göran B. Klintmalm, Peter Kim, Koji Tomiyama, (unknown), Gary L. Davis, James F. Trotter, Rana Saad, Carmen Landaverde, Marlon F. Levy, Robert M. Goldstein, Marvin J. Stone	25
13	Investigation of potential carbohydrate antigen targets for human and baboon antibodies 2010 ·Xenotransplantation ·Peter Yeh, Mohamed Ezzelarab, Nicolai V. Bovin, Hidetaka Hara, Cassandra Long, Koji Tomiyama, Frank F. Sun, David Ayares, Michel Awwad, David K. C. Cooper	63
14	Impact of Sirolimus on the Recurrence of Hepatocellular Carcinoma After Liver Transplantation 2009 ·Liver Transplantation ·Srinath Chinnakotla, Gary L. Davis, (unknown), Peter Kim, Koji Tomiyama, Edmund Q. Sanchez, Nicholas Onaca, Robert M. Goldstein, Marlon F. Levy, Göran B. Klintmalm	106
15	Liver graft exposure to carbon monoxide during cold storage protects sinusoidal endothelial cells and ameliorates reperfusion injury in rats 2009 ·Liver Transplantation ·Atsushi Ikeda, Shinya Ueki, Atsunori Nakao, Koji Tomiyama, Mark A. Ross, Donna B. Stolz, David A. Geller, Noriko Murase	40
16	Carbon Monoxide Ameliorates Renal Cold Ischemia-Reperfusion Injury With an Upregulation of Vascular Endothelial Growth Factor by Activation of Hypoxia-Inducible Factor 2008 ·Transplantation ·Gaetano Faleo, João Seda Neto, Junichi Kohmoto, Koji Tomiyama, Hiroko Shimizu, Toru Takahashi, Yinna Wang, Ryujiro Sugimoto, Augustine M.K. Choi, Donna B. Stolz, Giuseppe Carrieri, Kenneth R. McCurry, Noriko Murase, Atsunori Nakao	66
17	Relative contribution of direct and indirect allorecognition in developing tolerance after liver transplantation 2008 ·Liver Transplantation ·Hideyoshi Toyokawa, Atsunori Nakao, Robert J. Bailey, Michael A. Nalesnik, Takashi Kaizu, Jérôme Lemoine, Atsushi Ikeda, Koji Tomiyama, Glenn D. Papworth, Leaf Huang, Anthony J. Demetris, Thomas E. Starzl, Noriko Murase	25
18	Carbon Monoxide Protects Rat Lung Transplants From Ischemia‐Reperfusion Injury via a Mechanism Involving p38 MAPK Pathway 2007 ·American Journal of Transplantation ·Junichi Kohmoto, Atsunori Nakao, Donna B. Stolz, Takashi Kaizu, Allan Tsung, Atsushi Ikeda, Hiroko Shimizu, Toru Takahashi, Koji Tomiyama, Ryujiro Sugimoto, Augustine M.K. Choi, Timothy R. Billiar, Noriko Murase, Kenneth R. McCurry	84
19	Low-dose carbon monoxide inhalation prevents ischemia/reperfusion injury of transplanted rat lung grafts 2006 ·Surgery ·Junichi Kohmoto, Atsunori Nakao, Takashi Kaizu, Allan Tsung, Atsushi Ikeda, Koji Tomiyama, Timothy R. Billiar, Augustine M.K. Choi, Noriko Murase, Kenneth R. McCurry	76
20	Magnetic resonance angiography evaluation of basilar artery stenosis in patients with vertebrobasilar insufficiency 2000 ·European Archives of Oto-Rhino-Laryngology ·Takayuki Nakagawa, (unknown), (unknown), Koji Tomiyama	6

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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