Naoki Tohyama

554 total citations
40 papers, 382 citations indexed

About

Naoki Tohyama is a scholar working on Radiation, Radiology, Nuclear Medicine and Imaging and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Naoki Tohyama has authored 40 papers receiving a total of 382 indexed citations (citations by other indexed papers that have themselves been cited), including 33 papers in Radiation, 29 papers in Radiology, Nuclear Medicine and Imaging and 22 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Naoki Tohyama's work include Advanced Radiotherapy Techniques (33 papers), Radiation Therapy and Dosimetry (15 papers) and Advances in Oncology and Radiotherapy (12 papers). Naoki Tohyama is often cited by papers focused on Advanced Radiotherapy Techniques (33 papers), Radiation Therapy and Dosimetry (15 papers) and Advances in Oncology and Radiotherapy (12 papers). Naoki Tohyama collaborates with scholars based in Japan, United States and Australia. Naoki Tohyama's co-authors include Masakazu Nishimura, Eiki Satoh, Yukio Fujita, Akihisa Wakita, Masahide Saito, Noriyuki Kadoya, Yuki Miyabe, Mitsuhiro Nakamura, K. Tani and Y. Nakajima and has published in prestigious journals such as International Journal of Radiation Oncology*Biology*Physics, Medical Physics and Radiotherapy and Oncology.

In The Last Decade

Naoki Tohyama

34 papers receiving 371 citations

Peers

Naoki Tohyama
Varsha Viswanath United States
Abbas Takavar Iran
Yingying Peng China
Kayoko Obayashi Japan
Shinya Sugiyama Japan
M. Schwartz Chile
Mahvash Zaman United Kingdom
Lili Xu China
Zhiyong Xu China
Paola Baldelli Italy
Varsha Viswanath United States
Naoki Tohyama
Citations per year, relative to Naoki Tohyama Naoki Tohyama (= 1×) peers Varsha Viswanath

Countries citing papers authored by Naoki Tohyama

Since Specialization
Citations

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

Fields of papers citing papers by Naoki Tohyama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Naoki Tohyama

This figure shows the co-authorship network connecting the top 25 collaborators of Naoki Tohyama. A scholar is included among the top collaborators of Naoki Tohyama 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 Naoki Tohyama. Naoki Tohyama 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.
Kojima, Toru, Hiroyuki Okamoto, Naoki Tohyama, et al.. (2024). Current status of the working environment of brachytherapy in Japan: a nationwide survey-based analysis focusing on radiotherapy technologists and medical physicists. Journal of Radiation Research. 65(6). 851–861.
2.
Ogata, Toshiyuki, Yutaro Mori, Teiji Nishio, et al.. (2024). Clinical workload profile of medical physics professionals at particle therapy Centers: a National Survey in Japan. Journal of Radiation Research. 66(1). 52–64. 1 indexed citations
3.
Okamoto, Hiroyuki, Akihisa Wakita, K. Tani, et al.. (2024). Plan complexity metrics for head and neck VMAT competition plans. Medical dosimetry. 49(3). 244–253. 2 indexed citations
4.
Tohyama, Naoki, Eriko Saito, Ken‐ichi Uchida, Kiyoshi Yoda, & Shinichiro Mori. (2024). The Itappachi Universal Motion Platform for Accurate Dose Measurement in Thoracoabdominal Radiotherapy. Cureus. 16(10). e71713–e71713.
5.
Nishioka, Shie, Hiroyuki Okamoto, Takahito Chiba, et al.. (2024). Technical note: A universal worksheet for failure mode and effects analysis—A project of the Japanese College of Medical Physics. Medical Physics. 51(5). 3658–3664. 1 indexed citations
6.
Okamoto, Hiroyuki, Noriyuki Kadoya, Nobutaka Mukumoto, et al.. (2024). Multi-institutional questionnaire-based survey on online adaptive radiotherapy performed using commercial systems in Japan in 2023. Radiological Physics and Technology. 17(3). 581–595. 4 indexed citations
7.
Nakamura, Mitsuhiro, Dejun Zhou, Hiroyuki Okamoto, et al.. (2023). A virtual audit system for intensity‐modulated radiation therapy credentialing in Japan Clinical Oncology Group clinical trials: A pilot study. Journal of Applied Clinical Medical Physics. 24(6). e14040–e14040. 2 indexed citations
8.
Tanabe, Satoshi, Naoki Tohyama, Hiroyuki Okamoto, et al.. (2023). Radiological imaging protection: a study on imaging dose used while planning computed tomography for external radiotherapy in Japan. Journal of Radiation Research. 65(2). 159–167. 2 indexed citations
9.
Hayashi, Naoki, Masahiko Okumura, Mitsuhiro Nakamura, et al.. (2023). Current status of the educational environment to acquire and maintain the professional skills of radiotherapy technology and medical physics specialists in Japan: a nationwide survey. Radiological Physics and Technology. 16(4). 431–442. 4 indexed citations
10.
Okamoto, Hiroyuki, Naoki Tohyama, Masaru Nakamura, et al.. (2022). Establishing quality indicators to comprehensively assess quality assurance and patient safety in radiotherapy and their relationship with an institution’s background. Radiotherapy and Oncology. 179. 109452–109452. 5 indexed citations
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Kadoya, Noriyuki, Masahide Saito, Akihiro Takemura, et al.. (2019). Factual survey of the clinical use of deformable image registration software for radiotherapy in Japan. Journal of Radiation Research. 60(4). 546–553. 11 indexed citations
14.
Okamoto, Hiroyuki, Mitsuhiro Nakamura, Hideyuki Mizuno, et al.. (2018). Establishment of postal audit system in intensity-modulated radiotherapy by radiophotoluminescent glass dosimeters and a radiochromic film. Physica Medica. 48. 119–126. 20 indexed citations
15.
Okamoto, Hiroyuki, Satoshi Nakamura, Shie Nishioka, et al.. (2017). Independent assessment of source position for gynecological applicator in high-dose-rate brachytherapy. Journal of Contemporary Brachytherapy. 5(5). 477–486. 10 indexed citations
16.
Kadoya, Noriyuki, Y. Nakajima, Masahide Saito, et al.. (2016). Multi-institutional Validation Study of Commercially Available Deformable Image Registration Software for Thoracic Images. International Journal of Radiation Oncology*Biology*Physics. 96(2). 422–431. 89 indexed citations
17.
Matsuo, Yukinori, Hiroshi Onishi, Keiichi Nakagawa, et al.. (2012). Guidelines for respiratory motion management in radiation therapy. Journal of Radiation Research. 54(3). 561–568. 34 indexed citations
18.
Tohyama, Naoki, Shizuka Hashimoto, Yu Kumazaki, et al.. (2011). SU-E-T-80: Development of IMRT Postal Audit Phantom Using Radiophotoluminescence Glass Dosimeter. Medical Physics. 38(6Part11). 3504–3504. 1 indexed citations
19.
Fujita, Yukio, et al.. (2010). Depth Scaling of Solid Phantom for Intensity Modulated Radiotherapy Beams. Journal of Radiation Research. 51(6). 707–713. 4 indexed citations
20.
Hatano, Kazuo, et al.. (2007). Current status of intensity-modulated radiation therapy (IMRT). International Journal of Clinical Oncology. 12(6). 408–415. 15 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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