Ei Itobayashi

3.7k total citations
32 papers, 614 citations indexed

About

Ei Itobayashi is a scholar working on Hepatology, Epidemiology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Ei Itobayashi has authored 32 papers receiving a total of 614 indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Hepatology, 17 papers in Epidemiology and 8 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Ei Itobayashi's work include Hepatocellular Carcinoma Treatment and Prognosis (18 papers), Liver Disease Diagnosis and Treatment (15 papers) and Hepatitis C virus research (8 papers). Ei Itobayashi is often cited by papers focused on Hepatocellular Carcinoma Treatment and Prognosis (18 papers), Liver Disease Diagnosis and Treatment (15 papers) and Hepatitis C virus research (8 papers). Ei Itobayashi collaborates with scholars based in Japan, United Kingdom and United States. Ei Itobayashi's co-authors include Hidenori Toyoda, Toshifumi Tada, Atsushi Hiraoka, Takashi Kumada, Kunihiko Tsuji, Toru Ishikawa, Kazuya Kariyama, Kazuhiro Nouso, Masashi Hirooka and Yoichi Hiasa and has published in prestigious journals such as SHILAP Revista de lepidopterología, Gut and Cancers.

In The Last Decade

Ei Itobayashi

31 papers receiving 611 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ei Itobayashi Japan 11 493 349 127 124 91 32 614
Yusuke Okuwaki Japan 14 503 1.0× 300 0.9× 68 0.5× 172 1.4× 67 0.7× 23 579
Juichi Takada Japan 13 456 0.9× 284 0.8× 73 0.6× 150 1.2× 61 0.7× 24 545
Noriaki Naeshiro Japan 16 390 0.8× 313 0.9× 59 0.5× 177 1.4× 49 0.5× 25 551
Naoto Kawabe Japan 14 385 0.8× 402 1.2× 95 0.7× 103 0.8× 52 0.6× 46 579
Tokio Higaki Japan 16 451 0.9× 287 0.8× 217 1.7× 303 2.4× 122 1.3× 75 691
Masamichi Moriguchi Japan 16 376 0.8× 210 0.6× 201 1.6× 285 2.3× 132 1.5× 53 595
Pui–Ching Lee Taiwan 10 595 1.2× 533 1.5× 63 0.5× 142 1.1× 61 0.7× 13 732
Yoshimichi Chuganji Japan 11 305 0.6× 192 0.6× 67 0.5× 95 0.8× 149 1.6× 31 518
Francesca Ciccarese Italy 16 455 0.9× 364 1.0× 140 1.1× 335 2.7× 149 1.6× 44 896
Satoshi Oeda Japan 13 369 0.7× 445 1.3× 124 1.0× 186 1.5× 113 1.2× 37 651

Countries citing papers authored by Ei Itobayashi

Since Specialization
Citations

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

Fields of papers citing papers by Ei Itobayashi

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ei Itobayashi

This figure shows the co-authorship network connecting the top 25 collaborators of Ei Itobayashi. A scholar is included among the top collaborators of Ei Itobayashi 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 Ei Itobayashi. Ei Itobayashi 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.
Hatanaka, Takeshi, Satoru Kakizaki, Atsushi Hiraoka, et al.. (2025). Comparison of Surgical Resection and Radiofrequency Ablation for Early‐Stage HCC Patients With Child–Pugh Class B. Journal of Gastroenterology and Hepatology. 40(8). 2068–2077.
2.
Ohama, Hideko, Atsushi Hiraoka, Toshifumi Tada, et al.. (2024). Changes in clinical outcomes in Japanese patients with hepatocellular carcinoma due to hepatitis C virus following the development of direct‐acting antiviral agents. Journal of Gastroenterology and Hepatology. 39(7). 1394–1402. 2 indexed citations
3.
Kariyama, Kazuya, Kazuhiro Nouso, Atsushi Hiraoka, et al.. (2023). Treatment options for solitary hepatocellular carcinoma ≤5 cm: surgery vs. ablation: a multicenter retrospective study. SHILAP Revista de lepidopterología. 24(1). 71–80. 1 indexed citations
4.
Hiraoka, Atsushi, Takashi Kumada, Toshifumi Tada, et al.. (2023). Attempt to Establish Prognostic Predictive System for Hepatocellular Carcinoma Using Artificial Intelligence for Assistance with Selection of Treatment Modality. Liver Cancer. 12(6). 565–575. 6 indexed citations
5.
Toyoda, Hidenori, Satoshi Yasuda, Akio Moriya, et al.. (2022). Misunderstanding of hepatitis C virus (HCV) infection status by non–specialized medical doctors in patients who achieved sustained virologic response to anti-HCV therapy. Journal of Infection and Chemotherapy. 28(9). 1231–1234. 1 indexed citations
6.
Takahashi, Yu, et al.. (2021). Clinical and therapeutic features and prognostic factors of metastatic colorectal cancer over age 80: a retrospective study. BMC Gastroenterology. 21(1). 199–199. 9 indexed citations
7.
Kuwai, Toshio, Manabu Kubota, Akira Nakamura, et al.. (2021). The efficacy of prophylactic clip closure of mucosal defects after colorectal endoscopic submucosal dissection on delayed bleeding. Scandinavian Journal of Gastroenterology. 56(10). 1236–1242. 11 indexed citations
8.
Kariyama, Kazuya, Kazuhiro Nouso, Atsushi Hiraoka, et al.. (2020). EZ-ALBI Score for Predicting Hepatocellular Carcinoma Prognosis. Liver Cancer. 9(6). 734–743. 36 indexed citations
9.
Kariyama, Kazuya, Kazuhiro Nouso, Hidenori Toyoda, et al.. (2019). Treatment of Intermediate-Stage Hepatocellular Carcinoma in Japan: Position of Curative Therapies. Liver Cancer. 9(1). 41–49. 31 indexed citations
10.
Kariyama, Kazuya, Kazuhiro Nouso, Hidenori Toyoda, et al.. (2019). Utility of FIB4-T as a Prognostic Factor for Hepatocellular Carcinoma. Cancers. 11(2). 203–203. 7 indexed citations
11.
Hiraoka, Atsushi, Takashi Kumada, Kunihiko Tsuji, et al.. (2018). Validation of Modified ALBI Grade for More Detailed Assessment of Hepatic Function in Hepatocellular Carcinoma Patients: A Multicenter Analysis. Liver Cancer. 8(2). 121–129. 149 indexed citations
12.
Hiraoka, Atsushi, Takashi Kumada, Kazuya Kariyama, et al.. (2018). Therapeutic potential of lenvatinib for unresectable hepatocellular carcinoma in clinical practice: Multicenter analysis. Hepatology Research. 49(1). 111–117. 57 indexed citations
13.
Hiraoka, Atsushi, Takashi Kumada, Masashi Hirooka, et al.. (2017). A better method for assessment of hepatic function in hepatocellular carcinoma patients treated with radiofrequency ablation: Usefulness of albumin–bilirubin grade. Hepatology Research. 48(3). E61–E67. 17 indexed citations
14.
Tada, Toshifumi, Takashi Kumada, Hidenori Toyoda, et al.. (2017). Role of hepatic resection in patients with intermediate‐stage hepatocellular carcinoma: A multicenter study from Japan. Cancer Science. 108(7). 1414–1420. 39 indexed citations
15.
Hiraoka, Atsushi, Takashi Kumada, Kojiro Michitaka, et al.. (2017). Clinical features of hemodialysis patients treated for hepatocellular carcinoma: Comparison between resection and radiofrequency ablation. Molecular and Clinical Oncology. 6(4). 455–461. 7 indexed citations
16.
17.
Hiraoka, Atsushi, Takashi Kumada, Kazuhiro Nouso, et al.. (2016). Proposed New Sub-Grouping for Intermediate-Stage Hepatocellular Carcinoma Using Albumin-Bilirubin Grade. Oncology. 91(3). 153–161. 34 indexed citations
18.
Ishibashi, Hiroyuki, et al.. (2014). A case of extrahepatic portal vein obstruction due to non-cirrhotic portal vein thrombosis with the JAK2V617F mutation. Kanzo. 55(3). 170–175. 1 indexed citations
19.
Ishibashi, Hiroyuki, Kazunaga Ishigaki, Hiromi Abe, et al.. (2014). [A case of gastric carcinosarcoma treated with surgical resection and irinotecan and mitomycin C combination therapy].. PubMed. 111(1). 105–14. 4 indexed citations
20.
Nakamura, Akira, et al.. (2008). A CASE OF CAP POLYPOSIS SUCCESSFULLY TREATED BY STEROID ENEMA THERAPY. Acta gastro-enterologica belgica. 50(5). 1311–1318. 1 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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