Ryusei Matsuyama

6.1k total citations
168 papers, 3.8k citations indexed

About

Ryusei Matsuyama is a scholar working on Oncology, Surgery and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Ryusei Matsuyama has authored 168 papers receiving a total of 3.8k indexed citations (citations by other indexed papers that have themselves been cited), including 91 papers in Oncology, 70 papers in Surgery and 63 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Ryusei Matsuyama's work include Pancreatic and Hepatic Oncology Research (53 papers), Cholangiocarcinoma and Gallbladder Cancer Studies (33 papers) and Gallbladder and Bile Duct Disorders (29 papers). Ryusei Matsuyama is often cited by papers focused on Pancreatic and Hepatic Oncology Research (53 papers), Cholangiocarcinoma and Gallbladder Cancer Studies (33 papers) and Gallbladder and Bile Duct Disorders (29 papers). Ryusei Matsuyama collaborates with scholars based in Japan, United States and Australia. Ryusei Matsuyama's co-authors include Itaru Endo, Masanori Oshi, Kazuaki Takabe, Yoshihisa Tokumaru, Li Yan, Rintaro Mori, Robert M. Hoffman, Kuniya Tanaka, Takashi Murakami and Yasushi Ichikawa and has published in prestigious journals such as Journal of Clinical Oncology, SHILAP Revista de lepidopterología and PLoS ONE.

In The Last Decade

Ryusei Matsuyama

156 papers receiving 3.8k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Ryusei Matsuyama Japan	37	1.8k	1.2k	1.1k	869	814	168	3.8k
Eishi Nagai Japan	37	1.9k 1.0×	1.0k 0.9×	1.6k 1.5×	1.1k 1.3×	1.3k 1.6×	111	4.2k
Daniele V. F. Tauriello Netherlands	19	3.0k 1.6×	571 0.5×	2.3k 2.1×	1.1k 1.2×	270 0.3×	34	4.9k
Alexandre Calon Spain	15	2.7k 1.5×	508 0.4×	1.6k 1.5×	981 1.1×	254 0.3×	23	4.0k
W. Michael Korn United States	32	2.1k 1.1×	769 0.7×	1.2k 1.1×	906 1.0×	535 0.7×	197	3.4k
N.V. Rajeshkumar United States	29	2.8k 1.5×	480 0.4×	1.9k 1.8×	1.3k 1.5×	393 0.5×	43	4.3k
Takeshi Kuwata Japan	43	2.9k 1.6×	1.8k 1.6×	1.9k 1.8×	901 1.0×	833 1.0×	198	5.9k
Paola Gazzaniga Italy	32	2.0k 1.1×	585 0.5×	887 0.8×	1.2k 1.3×	535 0.7×	114	3.1k
Hilary A. Kenny United States	27	1.8k 1.0×	393 0.3×	2.6k 2.5×	2.1k 2.4×	396 0.5×	41	5.4k
Giulio Francia United States	31	1.5k 0.8×	540 0.5×	1.5k 1.4×	849 1.0×	98 0.1×	69	3.2k
Sean P. Pitroda United States	33	1.8k 1.0×	1.0k 0.9×	1.1k 1.0×	677 0.8×	342 0.4×	94	3.4k

Countries citing papers authored by Ryusei Matsuyama

Since Specialization

Citations

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

Fields of papers citing papers by Ryusei Matsuyama

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ryusei Matsuyama

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

Murakami, Takashi, Ryusei Matsuyama, Kentaro Miyake, et al.. (2025). Neoadjuvant Chemoradiotherapy Enhances Tumor PD-L1 Expression in Pancreatic Cancer. Anticancer Research. 45(4). 1731–1747.

Murakami, Takashi, Ryusei Matsuyama, Yasuhiro Yabushita, et al.. (2025). Comparison between Neoadjuvant Chemoradiotherapy and Chemotherapy for Patients with Resectable Pancreatic Cancer. Annals of Surgical Oncology. 32(12). 8844–8855.

Sahara, Kota, T Takahashi, Kentaro Miyake, et al.. (2023). Neoadjuvant Therapy for Extrahepatic Biliary Tract Cancer: A Propensity Score-Matched Survival Analysis. Journal of Clinical Medicine. 12(7). 2654–2654. 9 indexed citations

Matsuyama, Ryusei, Rintaro Mori, Yuki Homma, et al.. (2022). Impact of Gemcitabine Plus S1 Neoadjuvant Chemotherapy on Borderline Resectable Perihilar Cholangiocarcinoma. Annals of Surgical Oncology. 29(4). 2393–2405. 13 indexed citations

Oshi, Masanori, Shipra Gandhi, Fernando A. Angarita, et al.. (2021). A novel five-gene score to predict complete pathological response to neoadjuvant chemotherapy in ER-positive/HER2-negative breast cancer.. PubMed Central. 11(7). 3611–3627. 10 indexed citations

Yamamoto, Jun, Kentaro Miyake, Qinghong Han, et al.. (2020). Oral recombinant methioninase increases TRAIL receptor-2 expression to regress pancreatic cancer in combination with agonist tigatuzumab in an orthotopic mouse model. Cancer Letters. 492. 174–184. 32 indexed citations

Tsuchiya, Nobuhiro, Ryusei Matsuyama, Takashi Murakami, et al.. (2020). Role of Conversion Surgery for Unresectable Pancreatic Cancer After Long‐Term Chemotherapy. World Journal of Surgery. 44(8). 2752–2760. 9 indexed citations

Oshi, Masanori, Yoshihisa Tokumaru, Fernando A. Angarita, et al.. (2020). Degree of Early Estrogen Response Predict Survival after Endocrine Therapy in Primary and Metastatic ER-Positive Breast Cancer. Cancers. 12(12). 3557–3557. 41 indexed citations

Oshi, Masanori, Hideo Takahashi, Yoshihisa Tokumaru, et al.. (2020). The E2F Pathway Score as a Predictive Biomarker of Response to Neoadjuvant Therapy in ER+/HER2− Breast Cancer. Cells. 9(7). 1643–1643. 92 indexed citations

10.

Hiroshima, Yukihiko, Rintaro Mori, Yusuke Saigusa, et al.. (2019). MiR-194-5p in Pancreatic Ductal Adenocarcinoma Peritoneal Washings is Associated with Peritoneal Recurrence and Overall Survival in Peritoneal Cytology-Negative Patients. Annals of Surgical Oncology. 26(13). 4506–4514. 10 indexed citations

11.

Miyake, Kentaro, Tasuku Kiyuna, Masuyo Miyake, et al.. (2019). Gemcitabine combined with docetaxel precisely regressed a recurrent leiomyosarcoma peritoneal metastasis in a patient-derived orthotopic xenograft (PDOX) model. Biochemical and Biophysical Research Communications. 509(4). 1041–1046. 13 indexed citations

12.

Miyake, Kentaro, Tasuku Kiyuna, Kei Kawaguchi, et al.. (2019). Regorafenib regressed a doxorubicin-resistant Ewing’s sarcoma in a patient-derived orthotopic xenograft (PDOX) nude mouse model. Cancer Chemotherapy and Pharmacology. 83(5). 809–815. 18 indexed citations

13.

Takeda, Kazuhisa, Takafumi Kumamoto, Kazunori Nojiri, et al.. (2015). Stroke Volume Variation for the Evaluation of Circulating Blood Volume after Living Donor Liver Transplantation.. PubMed. 62(139). 693–7. 1 indexed citations

14.

Kumamoto, Takafumi, Kuniya Tanaka, Kazunori Nojiri, et al.. (2012). A Case of Acquired Lower Bile Duct Cancer with Non-hemophilic Coagulation Factor-VIII Inhibitor. The Japanese Journal of Gastroenterological Surgery. 45(11). 1098–1104. 2 indexed citations

15.

Taniguchi, Koichi, Itaru Endo, Ryusei Matsuyama, et al.. (2010). A Case of Safely Resected Pancreatic head Cancer Associated with Atherosclerotic Stenosis of Superior Mesenteric Artery. The Japanese Journal of Gastroenterological Surgery. 43(1). 72–76. 4 indexed citations

16.

Mori, Rintaro, Ryusei Matsuyama, Satoshi Hasegawa, et al.. (2005). A Case of Intussusception due to Hemorrhagic Infarction with Cecal Cancer. The Japanese Journal of Gastroenterological Surgery. 38(6). 706–711. 1 indexed citations

17.

Mori, Rintaro, Ryusei Matsuyama, Satoshi Hasegawa, et al.. (2004). A Case of Islet Cell Tumor with Wide Invasion to the Spleen. The Japanese Journal of Gastroenterological Surgery. 37(8). 1438–1442. 2 indexed citations

18.

Matsuyama, Ryusei, et al.. (2004). Carcinoma of the Ileum Associated with Crohn's Disease. The Japanese Journal of Gastroenterological Surgery. 37(3). 329–333. 1 indexed citations

19.

Kaneko, Tadashi, Katsutoshi Murase, Naomasa Yoshida, et al.. (2002). A Case of the Sigmoid Colon Carcinoma with Total Situs Inversus and Intestinal Malrotation. The Japanese Journal of Gastroenterological Surgery. 35(5). 556–560. 3 indexed citations

20.

Matsuyama, Ryusei, et al.. (2002). A Case of Hepatocellular Carcinoma with Intracaval Extension of Tumor Emboli from Middle Right Hepatic Vein. The Japanese Journal of Gastroenterological Surgery. 35(4). 379–383. 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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