Koji Okuda

2.7k total citations
110 papers, 1.9k citations indexed

About

Koji Okuda is a scholar working on Surgery, Hepatology and Oncology. According to data from OpenAlex, Koji Okuda has authored 110 papers receiving a total of 1.9k indexed citations (citations by other indexed papers that have themselves been cited), including 55 papers in Surgery, 42 papers in Hepatology and 38 papers in Oncology. Recurrent topics in Koji Okuda's work include Hepatocellular Carcinoma Treatment and Prognosis (33 papers), Cholangiocarcinoma and Gallbladder Cancer Studies (31 papers) and Pancreatic and Hepatic Oncology Research (23 papers). Koji Okuda is often cited by papers focused on Hepatocellular Carcinoma Treatment and Prognosis (33 papers), Cholangiocarcinoma and Gallbladder Cancer Studies (31 papers) and Pancreatic and Hepatic Oncology Research (23 papers). Koji Okuda collaborates with scholars based in Japan, United States and United Kingdom. Koji Okuda's co-authors include Michio Sata, Ryoko Kuromatsu, Shuji Sumie, Eiji Ando, Osamu Nakashima, Akio Takata, Masamichi Kojiro, Nobuyoshi Fukushima, Shigeaki Aoyagi and Shigeru Yutani and has published in prestigious journals such as Journal of Clinical Oncology, SHILAP Revista de lepidopterología and PLoS ONE.

In The Last Decade

Koji Okuda

95 papers receiving 1.9k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Koji Okuda Japan 21 1.1k 734 600 473 331 110 1.9k
Hyungjin Rhee South Korea 27 1.1k 1.0× 481 0.7× 604 1.0× 381 0.8× 321 1.0× 66 1.8k
Delia D’Avola Spain 25 1.2k 1.1× 489 0.7× 726 1.2× 407 0.9× 326 1.0× 60 2.1k
Tadaaki Arizumi Japan 26 1.3k 1.2× 363 0.5× 776 1.3× 453 1.0× 372 1.1× 69 2.0k
Ryuichi Kita Japan 25 1.3k 1.1× 370 0.5× 923 1.5× 359 0.8× 198 0.6× 76 1.8k
M. Isabel Fiel United States 18 1.0k 0.9× 797 1.1× 581 1.0× 246 0.5× 206 0.6× 36 1.8k
Toshiyuki Itamoto Japan 28 1.1k 1.0× 1.1k 1.5× 599 1.0× 484 1.0× 324 1.0× 153 2.3k
Atsuyuki Maeda Japan 26 787 0.7× 1.1k 1.5× 692 1.2× 974 2.1× 621 1.9× 164 2.3k
Taofic Mounajjed United States 25 703 0.6× 762 1.0× 788 1.3× 408 0.9× 280 0.8× 90 1.9k
Masahiro Takita Japan 26 1.4k 1.2× 301 0.4× 745 1.2× 397 0.8× 331 1.0× 77 2.1k
Satoru Seo Japan 29 1.3k 1.2× 1.3k 1.8× 827 1.4× 975 2.1× 732 2.2× 166 2.9k

Countries citing papers authored by Koji Okuda

Since Specialization
Citations

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

Fields of papers citing papers by Koji Okuda

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Koji Okuda

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

All Works

20 of 20 papers shown
1.
Nomura, Yoriko, Jun Akiba, Toru Hisaka, et al.. (2021). Laparoscopic left hepatectomy for a patient with intrahepatic cholangiocarcinoma metastasis in the falciform ligament: a case report. BMC Surgery. 21(1). 122–122. 2 indexed citations
2.
Kanno, Hiroki, Toru Hisaka, Yoriko Nomura, et al.. (2020). A case of reactive lymphoid hyperplasia of the liver in a patient with autoimmune hepatitis. SHILAP Revista de lepidopterología. 6(1). 90–90. 4 indexed citations
3.
Hisaka, Toru, Hiroto Ishikawa, Yuichi Goto, et al.. (2019). Expression of Matrix Metalloproteinases in Intraductal Papillary Mucinous Neoplasm of the Pancreas. Anticancer Research. 39(8). 4485–4490. 1 indexed citations
4.
Matsueda, Satoko, Akira Yamada, Shigeki Shichijo, et al.. (2017). A randomized phase II trial of personalized peptide vaccine with low dose cyclophosphamide in biliary tract cancer. Cancer Science. 108(5). 838–845. 34 indexed citations
5.
Nomura, Yoriko, Osamu Nakashima, Hirohisa Yano, et al.. (2017). Evaluation of hepatocellular carcinoma spread via the portal system by 3-dimensional mapping. HPB. 19(12). 1119–1125. 11 indexed citations
6.
Hisaka, Toru, Hiroyuki Horiuchi, Shinji Uchida, et al.. (2016). Expression of HSP27 in Hepatocellular Carcinoma.. PubMed. 36(7). 3775–9. 20 indexed citations
7.
Beppu, Toru, Hirohisa Okabe, Koji Okuda, et al.. (2016). Portal Vein Embolization Followed by Right-Side Hemihepatectomy for Hepatocellular Carcinoma Patients: A Japanese Multi-Institutional Study. Journal of the American College of Surgeons. 222(6). 1138–1148e2. 19 indexed citations
8.
Yoshida, Naohiro, Toshiro Ogata, Koji Okuda, et al.. (2013). A case of primary hepatic neuroendocrine tumor with an intrahepatic metastasis treated by right hepatic trisegmentectomy. Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association). 74(3). 756–762. 2 indexed citations
9.
10.
Okuda, Koji, et al.. (2011). A Case of Mesenteric Venous Thrombosis Caused by Congenital Antithrombin Deficiency. The Japanese Journal of Gastroenterological Surgery. 44(5). 577–583. 1 indexed citations
11.
Kawaguchi, Takumi, Sho‐ichi Yamagishi, Minoru Itou, et al.. (2009). Pigment Epithelium-Derived Factor Inhibits Lysosomal Degradation of Bcl-xL and Apoptosis in HepG2 cells. American Journal Of Pathology. 176(1). 168–176. 22 indexed citations
12.
Aoki, Takanori, et al.. (2008). A CASE OF STRANGULATION ILEUS INDUCED BY EXTRA-GASTROINTESTINAL ANISAKIASIS. Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association). 69(6). 1373–1377. 1 indexed citations
13.
Ogata, Toshiro, Kenichiro Yamashita, Hiroyuki Horiuchi, Koji Okuda, & Satoru Todo. (2008). A novel tumor necrosis factor-α suppressant, ONO-SM362, prevents liver failure and promotes liver regeneration after extensive hepatectomy. Surgery. 143(4). 545–555. 15 indexed citations
14.
Fukuda, Shuichi, et al.. (2002). Surgical resection combined with chemotherapy for advanced hepatocellular carcinoma with tumor thrombus: Report of 19 cases. Surgery. 131(3). 300–310. 76 indexed citations
15.
Eriguchi, Naofumi, et al.. (2001). Malignant Sarcomatoid Tumor of the Liver: Report of a Case. Surgery Today. 31(2). 170–173. 9 indexed citations
16.
Kinoshita, Hisafumi, Shinji Sato, Masahiro Kawabata, et al.. (2001). A Case of Hepatocellular Carcinoma Rupturing after Angiography.. The Kurume Medical Journal. 48(3). 241–245. 3 indexed citations
17.
Eriguchi, Naofumi, Shigeaki Aoyagi, Masao Hara, et al.. (2000). A Case of Synchronous Double Cancers of the Pancreas and Stomach.. The Kurume Medical Journal. 47(2). 169–171. 6 indexed citations
18.
Okuda, Koji. (1995). What makes basic research basic. Journal of Japan Institute of Light Metals. 45(7). 429–430.
19.
Saitsu, Hirotomo, et al.. (1994). Microwave coagulo-necrotic therapy for hepatocellular carcinoma under mini open laparotomy. Journal of Microwave Surgery. 12(0). 33–39. 2 indexed citations
20.
Okuda, Koji, Hirotomo Saitsu, & Toshimichi Nakayama. (1992). Evaluation of Resection Method for Hepatocellular Carcinoma Combined with Liver Cirrhosis According to Multicentric Carcinogenesis and Quality of Life.. The Japanese Journal of Gastroenterological Surgery. 25(10). 2640–2646.

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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