Masanobu Usui

2.8k total citations
139 papers, 2.1k citations indexed

About

Masanobu Usui is a scholar working on Surgery, Hepatology and Epidemiology. According to data from OpenAlex, Masanobu Usui has authored 139 papers receiving a total of 2.1k indexed citations (citations by other indexed papers that have themselves been cited), including 65 papers in Surgery, 48 papers in Hepatology and 45 papers in Epidemiology. Recurrent topics in Masanobu Usui's work include Liver Disease and Transplantation (38 papers), Pancreatic and Hepatic Oncology Research (33 papers) and Organ Transplantation Techniques and Outcomes (28 papers). Masanobu Usui is often cited by papers focused on Liver Disease and Transplantation (38 papers), Pancreatic and Hepatic Oncology Research (33 papers) and Organ Transplantation Techniques and Outcomes (28 papers). Masanobu Usui collaborates with scholars based in Japan, United States and Bangladesh. Masanobu Usui's co-authors include Shuji Isaji, Hiroyuki Sakurai, Shugo Mizuno, Masashi Kishiwada, Masami Tabata, Hiroyuki Kato, Naohisa Kuriyama, Yasuhiro Murata, Yoshinori Azumi and Shinji Üemoto and has published in prestigious journals such as SHILAP Revista de lepidopterología, Stroke and Annals of Surgery.

In The Last Decade

Masanobu Usui

129 papers receiving 2.0k citations

Peers

Masanobu Usui

SURGE

ONCOL

EPIDE

HEPAT

PRM

Eizaburo Sasatomi United States

Valérie Hervieu France

Giuseppe Fusai United Kingdom

Norihiro Sato Japan

Aya Miyagawa‐Hayashino Japan

Stefano Maria Giulini Italy

Øystein Mathisen Norway

K. W. Jauch Germany

Hidefumi Higashi Japan

Shigetoshi Yoshida Japan

Eizaburo Sasatomi United States

Masanobu Usui

591 ×0.7

SURGE

500 ×0.7

ONCOL

441 ×0.7

EPIDE

452 ×0.8

HEPAT

335 ×0.8

PRM

Citations per year, relative to Masanobu Usui Masanobu Usui (= 1×) peers Eizaburo Sasatomi

Countries citing papers authored by Masanobu Usui

Since Specialization

Citations

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

Fields of papers citing papers by Masanobu Usui

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Masanobu Usui

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

Okamoto, Mieko, et al.. (2025). Effects of Oral Care in Terminal Cancer Patients Shortly Before Death. Gerodontology. 43(1). 21–26. 1 indexed citations

Kuriyama, Naohisa, Masanobu Usui, Aoi Hayasaki, et al.. (2023). Clinical Significance of Plasma Tenascin-C Levels in Recipients With Prolonged Jaundice After Living Donor Liver Transplantation. Transplantation Proceedings. 55(4). 913–923.

Higashiguchi, Takashi, et al.. (2020). Influence of muscle mass on the estimation of glomerular filtration rate in Japanese terminal cancer patients. Clinical and Experimental Nephrology. 24(10). 876–884. 3 indexed citations

Kato, Hiroyuki, Aoi Hayasaki, Takehiro Fujii, et al.. (2019). The clinical impact of portal venous patency ratio on prognosis of patients with pancreatic ductal adenocarcinoma undergoing pancreatectomy with combined resection of portal vein following preoperative chemoradiotherapy. Pancreatology. 19(2). 307–315. 6 indexed citations

Ichikawa, Ken, Shugo Mizuno, Aoi Hayasaki, et al.. (2019). Prognostic Nutritional Index after Chemoradiotherapy Was the Strongest Prognostic Predictor among Biological and Conditional Factors in Localized Pancreatic Ductal Adenocarcinoma Patients. Cancers. 11(4). 514–514. 20 indexed citations

Hayasaki, Aoi, Yasuhiro Murata, Masanobu Usui, et al.. (2019). Clinical Significance of Plasma Apolipoprotein-AII Isoforms as a Marker of Pancreatic Exocrine Disorder for Patients with Pancreatic Adenocarcinoma Undergoing Chemoradiotherapy, Paying Attention to Pancreatic Morphological Changes. BioMed Research International. 2019. 1–12. 12 indexed citations

Hayasaki, Aoi, Shuji Isaji, Masashi Kishiwada, et al.. (2018). Survival Analysis in Patients with Pancreatic Ductal Adenocarcinoma Undergoing Chemoradiotherapy Followed by Surgery According to the International Consensus on the 2017 Definition of Borderline Resectable Cancer. Cancers. 10(3). 65–65. 37 indexed citations

Kato, Hiroyuki, Yusuke Iizawa, Kei Nakamura, et al.. (2018). The Critical Role of Biliary Candidiasis in Development of Surgical Site Infections after Pancreatoduodenectomy: Results of Prospective Study Using a Selective Culture Medium for Candida Species. BioMed Research International. 2018. 1–8. 10 indexed citations

Iizawa, Yusuke, Hiroyuki Kato, Masashi Kishiwada, et al.. (2017). Long-term outcomes after pancreaticoduodenectomy using pair-watch suturing technique: Different roles of pancreatic duct dilatation and remnant pancreatic volume for the development of pancreatic endocrine and exocrine dysfunction. Pancreatology. 17(5). 814–821. 15 indexed citations

10.

Kuriyama, Naohisa, Hiroyuki Kato, Akihiro Tanemura, et al.. (2015). Comparative Study on the Cytoprotective Effects of Activated Protein C Treatment in Nonsteatotic and Steatotic Livers under Ischemia-Reperfusion Injury. BioMed Research International. 2015. 1–13. 8 indexed citations

11.

Mizuno, Shugo, Yasuhiro Murata, Akihiro Tanemura, et al.. (2014). Clinicopathological Factors Affecting Survival and Recurrence after Initial Hepatectomy in Non-B Non-C Hepatocellular Carcinoma Patients with Comparison to Hepatitis B or C Virus. BioMed Research International. 2014. 1–9. 11 indexed citations

12.

Mizuno, Shugo, Yuichi Muraki, Kaname Nakatani, et al.. (2013). Immunological Aspects in Late Phase of Living Donor Liver Transplant Patients: Usefulness of Monitoring Peripheral Blood CD4+ Adenosine Triphosphate Activity. SHILAP Revista de lepidopterología. 2013. 1–8. 9 indexed citations

13.

Inagaki, Yuji, Kazushi Sugimoto, Katsuya Shiraki, et al.. (2013). The long-term effects of splenectomy and subsequent interferon therapy in patients with HCV-related liver cirrhosis. Molecular Medicine Reports. 9(2). 487–492. 12 indexed citations

14.

Usui, Masanobu, Hiroyuki Kato, Yoshinori Azumi, et al.. (2010). A resected case of preoperatively diagnosed glucagonoma of the pancreas using EUS-FNA. Suizo. 25(5). 599–605. 1 indexed citations

15.

Yamakado, Koichiro, Atsuhiro Nakatsuka, Haruyuki Takaki, et al.. (2008). Early-Stage Hepatocellular Carcinoma: Radiofrequency Ablation Combined with Chemoembolization versus Hepatectomy. Radiology. 247(1). 260–266. 140 indexed citations

16.

Mizuno, Shugo, Taku Iida, Shintaro Yagi, et al.. (2006). Impact of venous drainage on regeneration of the anterior segment of right living‐related liver grafts. Clinical Transplantation. 20(4). 509–516. 28 indexed citations

17.

Matsuda, Shinsuke, et al.. (2005). A Case of Mucinous Cholangiocarcinoma with an Early Gastric Remnant Cancer Developed after Operations for an Early Gastric Cancer and a Bile Duct Cancer. The Japanese Journal of Gastroenterological Surgery. 38(8). 1324–1329. 3 indexed citations

18.

Yamagiwa, Kentaro, Taku Iida, Shintaro Yagi, et al.. (2004). . Journal of Microwave Surgery. 22. 111–114.

19.

Usui, Masanobu & Yoshifumi Kawarada. (1998). [Endotoxin and its binding protein in organ failure].. PubMed. 99(8). 504–9. 1 indexed citations

20.

Goto, Hirozo, et al.. (1998). Reevaluation of systemic corticosteroid in the treatment of Behcet disease. 52(4). 670–674. 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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