Ryo Toya

1.8k total citations
86 papers, 1.3k citations indexed

About

Ryo Toya is a scholar working on Surgery, Radiology, Nuclear Medicine and Imaging and Radiation. According to data from OpenAlex, Ryo Toya has authored 86 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 34 papers in Surgery, 32 papers in Radiology, Nuclear Medicine and Imaging and 29 papers in Radiation. Recurrent topics in Ryo Toya's work include Advanced Radiotherapy Techniques (29 papers), Head and Neck Cancer Studies (20 papers) and Medical Imaging Techniques and Applications (19 papers). Ryo Toya is often cited by papers focused on Advanced Radiotherapy Techniques (29 papers), Head and Neck Cancer Studies (20 papers) and Medical Imaging Techniques and Applications (19 papers). Ryo Toya collaborates with scholars based in Japan, United States and Netherlands. Ryo Toya's co-authors include Natsuo Oya, Ryuji Murakami, Yasuyuki Yamashita, Toshinori Hirai, Tetsuo Saito, Mika Kitajima, Hirofumi Fukuoka, Tomohiko Matsuyama, Hideki Nakayama and Ryoji Yoshida and has published in prestigious journals such as SHILAP Revista de lepidopterología, PLoS ONE and Journal of Molecular Biology.

In The Last Decade

Ryo Toya

74 papers receiving 1.2k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Ryo Toya Japan	18	545	264	251	225	213	86	1.3k
Nikolaos Tselis Germany	24	369 0.7×	729 2.8×	298 1.2×	130 0.6×	452 2.1×	78	1.4k
Katsuyuki Shirai Japan	22	231 0.4×	672 2.5×	229 0.9×	198 0.9×	287 1.3×	102	1.3k
Frank Hofheinz Germany	27	1.3k 2.4×	501 1.9×	214 0.9×	91 0.4×	154 0.7×	80	1.7k
Nalee Kim South Korea	17	293 0.5×	242 0.9×	174 0.7×	108 0.5×	229 1.1×	76	884
Deirdre Jill Cohen United States	23	235 0.4×	436 1.7×	334 1.3×	225 1.0×	131 0.6×	96	1.7k
Valerio Nardone Italy	20	628 1.2×	465 1.8×	237 0.9×	120 0.5×	61 0.3×	105	1.3k
Gregory J. Kubicek United States	22	264 0.5×	474 1.8×	334 1.3×	99 0.4×	276 1.3×	73	1.1k
L. Claude France	19	517 0.9×	917 3.5×	206 0.8×	203 0.9×	465 2.2×	105	1.6k
C. Sugie Japan	21	449 0.8×	731 2.8×	175 0.7×	182 0.8×	538 2.5×	70	1.1k
Giampaolo Biti Italy	22	271 0.5×	604 2.3×	237 0.9×	177 0.8×	206 1.0×	88	1.4k

Countries citing papers authored by Ryo Toya

Since Specialization

Citations

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

Fields of papers citing papers by Ryo Toya

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ryo Toya

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

Kawashita, Yumiko, Masahiro Umeda, Maho Murata, et al.. (2025). Effectiveness of Hangeshashinto in delaying grade 2 radiotherapy-induced mucositis development in patients with hypopharyngeal or laryngeal cancer: Preliminary finding of a randomized clinical trial. Medicine. 104(24). e42870–e42870.

Kono, Reika, et al.. (2025). Dynamic Contrast-Enhanced Magnetic Resonance Imaging Findings and the Relevance of Histopathological Findings in Intraocular Solitary Fibrous Tumors. Cureus. 17(1). e77299–e77299.

Toya, Ryo, Tetsuo Saito, Tomohiko Matsuyama, et al.. (2024). Radiation Therapy Oncology Group 8502 “QUAD shot” regimen using volumetric modulated arc therapy for incurable head and neck cancer. Oral Oncology. 151. 106752–106752. 1 indexed citations

Honda, Koichi, et al.. (2024). Autoimmune pulmonary alveolar proteinosis presenting as localized multifocal GGOs: A case report. SHILAP Revista de lepidopterología. 19(12). 6072–6075.

Soyama, Akihiko, Masahiko Yamada, Shun Yamaguchi, et al.. (2024). Clinical Validation of Computer-Aided Diagnosis Software for Preventing Retained Surgical Sponges. Journal of the American College of Surgeons. 238(5). 856–860.

Yamazaki, Takuya, et al.. (2024). Additional chemoradiotherapy for superficial esophageal squamous cell carcinoma after near-circumferential or full-circumferential noncurative endoscopic submucosal dissection: a retrospective study. BMC Gastroenterology. 24(1). 232–232. 3 indexed citations

Takagi, Yukinori, Ikuo Katayama, Sato Eida, et al.. (2023). Three Signs to Help Detect Sjögren’s Syndrome: Incidental Findings on Magnetic Resonance Imaging and Computed Tomography. Journal of Clinical Medicine. 12(20). 6487–6487.

Toya, Ryo, Tomohiko Matsuyama, Tetsuo Saito, et al.. (2023). Prevalence and risk factors for retropharyngeal and retro-styloid lymph node metastasis in hypopharyngeal carcinoma. Radiation Oncology. 18(1). 134–134. 2 indexed citations

Matsuyama, Tomohiko, et al.. (2022). A prospective comparison of adaptive and fixed boost plans in radiotherapy for glioblastoma. Radiation Oncology. 17(1). 40–40. 5 indexed citations

10.

Shimohigashi, Yoshinobu, Ryo Toya, Tetsuo Saito, et al.. (2021). Impact of four-dimensional cone-beam computed tomography on target localization for gastric mucosa-associated lymphoid tissue lymphoma radiotherapy: reducing planning target volume. Radiation Oncology. 16(1). 14–14. 10 indexed citations

11.

Saito, Tetsuo, Naoki Nakamura, Kenta Murotani, et al.. (2020). Index and Non-index Pain Endpoints in Radiation Therapy for Painful Tumors: A Secondary Analysis of a Prospective Observational Study. International Journal of Radiation Oncology*Biology*Physics. 108(3). e170–e170.

12.

Sakata, Junki, Akiyuki Hirosue, Ryoji Yoshida, et al.. (2020). Enhanced Expression of IGFBP-3 Reduces Radiosensitivity and Is Associated with Poor Prognosis in Oral Squamous Cell Carcinoma. Cancers. 12(2). 494–494. 8 indexed citations

13.

Saito, Tetsuo, Naoki Nakamura, Kenta Murotani, et al.. (2020). Index and Nonindex Pain Endpoints in Radiation Therapy for Painful Tumors: A Secondary Analysis of a Prospective Observational Study. Advances in Radiation Oncology. 5(6). 1118–1125. 2 indexed citations

14.

Yoshida, Ryoji, Junki Sakata, Yuichiro Matsuoka, et al.. (2020). Onodera's prognostic nutritional index correlates with tumor immune environment and survival in patients with oral squamous cell carcinoma undergoing chemoradiotherapy. Translational Oncology. 13(12). 100850–100850. 22 indexed citations

15.

Saito, Tetsuo, et al.. (2019). Possible Dose–Response Relationship in Palliative Radiotherapy for Non-bone Painful Lesions. Clinical Oncology. 31(6). 391–398. 5 indexed citations

16.

Saito, Tetsuo, Ryo Toya, Naoya Yoshida, et al.. (2018). Spleen Dose–Volume Parameters as a Predictor of Treatment-related Lymphopenia During Definitive Chemoradiotherapy for Esophageal Cancer. In Vivo. 32(6). 1519–1525. 31 indexed citations

17.

Shimohigashi, Yoshinobu, et al.. (2017). Image quality of four-dimensional cone-beam computed tomography obtained at various gantry rotation speeds for liver stereotactic body radiation therapy with fiducial markers. Physica Medica. 45. 19–24. 10 indexed citations

18.

Noguchi, Taro, Ryo Toya, Hironori Ueno, Kiyotaka Tokuraku, & Taro Q.P. Uyeda. (2010). Screening of novel dominant negative mutant actins using glycine targeted scanning identifies G146V actin that cooperatively inhibits cofilin binding. Biochemical and Biophysical Research Communications. 396(4). 1006–1011. 12 indexed citations

19.

Murakami, Ryuji, Toshinori Hirai, Takeshi Sugahara, et al.. (2009). Grading Astrocytic Tumors by Using Apparent Diffusion Coefficient Parameters: Superiority of a One- versus Two-Parameter Pilot Method. Radiology. 251(3). 838–845. 144 indexed citations

20.

Murakami, Ryuji, Tomoko Nomura, Ryo Toya, et al.. (2009). Radiation-induced Parotid Gland Changes in Oral Cancer Patients: Correlation Between Parotid Volume and Saliva Production. Japanese Journal of Clinical Oncology. 40(1). 42–46. 43 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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