Tomohisa Okada

11.5k total citations
275 papers, 8.6k citations indexed

About

Tomohisa Okada is a scholar working on Radiology, Nuclear Medicine and Imaging, Cognitive Neuroscience and Neurology. According to data from OpenAlex, Tomohisa Okada has authored 275 papers receiving a total of 8.6k indexed citations (citations by other indexed papers that have themselves been cited), including 116 papers in Radiology, Nuclear Medicine and Imaging, 77 papers in Cognitive Neuroscience and 47 papers in Neurology. Recurrent topics in Tomohisa Okada's work include Advanced MRI Techniques and Applications (84 papers), MRI in cancer diagnosis (42 papers) and Advanced Neuroimaging Techniques and Applications (37 papers). Tomohisa Okada is often cited by papers focused on Advanced MRI Techniques and Applications (84 papers), MRI in cancer diagnosis (42 papers) and Advanced Neuroimaging Techniques and Applications (37 papers). Tomohisa Okada collaborates with scholars based in Japan, United States and Germany. Tomohisa Okada's co-authors include Norihiro Sadato, Yoshiharu Yonekura, Manabu Honda, Kaori Togashi, Hidenao Fukuyama, Don H. Bark, Marc R. Mayberg, Takashi Hanakawa, Tetsuya Iidaka and Junji Konishi and has published in prestigious journals such as Journal of Neuroscience, SHILAP Revista de lepidopterología and Journal of the American College of Cardiology.

In The Last Decade

Tomohisa Okada

265 papers receiving 8.4k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Tomohisa Okada Japan 53 3.9k 2.1k 1.3k 1.1k 988 275 8.6k
Simon J. Graham Canada 50 4.1k 1.1× 3.7k 1.7× 1.3k 0.9× 984 0.9× 966 1.0× 216 10.2k
Francesco Di Salle Italy 48 4.1k 1.0× 1.3k 0.6× 787 0.6× 884 0.8× 705 0.7× 176 7.8k
Edson Amaro Brazil 47 3.3k 0.9× 1.4k 0.7× 1.1k 0.8× 848 0.7× 1.4k 1.4× 284 7.4k
Adrian P. Crawley Canada 57 4.7k 1.2× 3.1k 1.4× 1.5k 1.2× 895 0.8× 1.3k 1.3× 150 10.6k
Catriona D. Good United Kingdom 26 5.5k 1.4× 2.8k 1.3× 1.2k 0.9× 934 0.8× 2.2k 2.3× 50 10.1k
Ching‐Po Lin Taiwan 52 5.6k 1.4× 3.7k 1.7× 1.3k 1.0× 1.1k 1.0× 2.5k 2.5× 321 11.7k
Ronald A. Yeo United States 45 3.1k 0.8× 1.7k 0.8× 1.5k 1.1× 1.2k 1.0× 1.0k 1.0× 127 7.0k
Richard Lévy France 44 3.7k 0.9× 782 0.4× 1.8k 1.4× 1.1k 1.0× 1.2k 1.2× 167 7.5k
Hans Herzog Germany 54 2.9k 0.7× 3.9k 1.8× 978 0.7× 577 0.5× 469 0.5× 228 9.0k
Harald Kugel Germany 62 4.1k 1.1× 2.4k 1.1× 608 0.5× 2.2k 1.9× 2.1k 2.2× 245 10.8k

Countries citing papers authored by Tomohisa Okada

Since Specialization
Citations

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

Fields of papers citing papers by Tomohisa Okada

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Tomohisa Okada

This figure shows the co-authorship network connecting the top 25 collaborators of Tomohisa Okada. A scholar is included among the top collaborators of Tomohisa Okada 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 Tomohisa Okada. Tomohisa Okada 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.
Okada, Tomohisa, Yoshiro Itatani, Koji Fujimoto, et al.. (2025). Automatic segmentation of male pelvic floor soft tissue structures for anatomical simulation and morphological assessment in lower rectal cancer surgery. Techniques in Coloproctology. 29(1). 176–176.
2.
Nishida, Akira, Atsushi Shima, Kenji Yoshimura, et al.. (2024). Frontoparietal-Striatal Network and Nucleus Basalis Modulation in Patients With Parkinson Disease and Gait Disturbance. Neurology. 103(3). e209606–e209606. 6 indexed citations
3.
Hirose, Masakazu, Tomohisa Okada, Toshihiko Aso, et al.. (2023). Identifying and reverting the adverse effects of white matter hyperintensities on cortical surface analyses. NeuroImage. 281. 120377–120377. 2 indexed citations
4.
Shima, Atsushi, et al.. (2023). Altered functional connectivity associated with striatal dopamine depletion in Parkinson’s disease. Cerebral Cortex Communications. 4(1). tgad004–tgad004. 8 indexed citations
5.
Okada, Tomohisa, et al.. (2021). Why We Should Report Colorimetric Data In Every Paper. eScholarship (California Digital Library). 43(43).
6.
Yamahata, Hitoshi, et al.. (2020). CT morphometric analysis of the cervical spinal canal with special reference to the correlation with the vertebral level. Journal of Orthopaedic Science. 26(3). 354–357. 2 indexed citations
7.
Sakata, Akihiko, Tomohisa Okada, Yosuke Yamamoto, et al.. (2018). Addition of Amide Proton Transfer Imaging to FDG-PET/CT Improves Diagnostic Accuracy in Glioma Grading: A Preliminary Study Using the Continuous Net Reclassification Analysis. American Journal of Neuroradiology. 39(2). 265–272. 15 indexed citations
8.
Okada, Tomohisa, Akira Yamamoto, Yasutaka Fushimi, et al.. (2017). Relationship between aging and T1 relaxation time in deep gray matter: A voxel‐based analysis. Journal of Magnetic Resonance Imaging. 46(3). 724–731. 31 indexed citations
9.
Okada, Tomohisa, Akira Yamamoto, Mitsunori Kanagaki, et al.. (2015). MP2RAGE for deep gray matter measurement of the brain: A comparative study with MPRAGE. Journal of Magnetic Resonance Imaging. 43(1). 55–62. 45 indexed citations
10.
Sakata, Akihiko, Tomohisa Okada, Akira Yamamoto, et al.. (2015). Grading glial tumors with amide proton transfer MR imaging: different analytical approaches. Journal of Neuro-Oncology. 122(2). 339–348. 79 indexed citations
11.
Sakai, Koji, et al.. (2012). Deep Brain Temperature Measurement by DWI Thermometry with Dual b-values : Volunteer Study. IEICE technical report. Speech. 111(389). 53–54. 1 indexed citations
12.
Sato, Tetsuo, et al.. (2009). Improvement of automatic cardiac rest period determination for coronary MRA. IEICE Technical Report; IEICE Tech. Rep.. 108(405). 37–42. 2 indexed citations
13.
Hagura, Nobuhiro, Yutaka Oouchida, Yu Aramaki, et al.. (2008). Visuokinesthetic Perception of Hand Movement is Mediated by Cerebro–Cerebellar Interaction between the Left Cerebellum and Right Parietal Cortex. Cerebral Cortex. 19(1). 176–186. 75 indexed citations
14.
Sato, Tetsuo, et al.. (2007). Automatic cardiac rest period determination for coronary MRA. IEICE Technical Report; IEICE Tech. Rep.. 107(326). 55–58. 1 indexed citations
15.
Seki, Ayumi, Tatsuya Koeda, Tomohisa Okada, & Norihiro Sadato. (2004). The Approach to Developmental Dyslexia - the Use of Functional MRI Studies. 20(1). 17–23.
16.
Kanosue, Kazuyuki, Norihiro Sadato, Tomohisa Okada, et al.. (2002). Brain activation during whole body cooling in humans studied with functional magnetic resonance imaging. Neuroscience Letters. 329(2). 157–160. 63 indexed citations
17.
Okada, Tomohisa, Masato Shibuya, Yoshio Suzuki, Masakazu Takayasu, & Naoki Kageyama. (1988). Early recovery of the local cerebral blood flow following middle cerebral artery occlusion in rats.. Nosotchu. 10(1). 36–39. 1 indexed citations
18.
Okada, Tomohisa, et al.. (1987). Intracerebral hemorrhage immediately after evacuation of a chronic subdural hematoma-Report of two cases-. Nosotchu. 9(1). 22–27. 2 indexed citations
19.
Suzuki, Yoshio, Tomohisa Okada, Masato Shibuya, et al.. (1984). Gamma-Aminobutyric Acid-Induced Contraction of the Dog Basilar Artery. Pharmacology. 29(1). 24–30. 15 indexed citations
20.
Suzuki, Yoshio, Tomohisa Okada, Masato Shibuya, et al.. (1983). Regional distribution of dopamine and norepinephrine in canine cerebral arteries — effect of pre- or postganglionic sympathetic denervation. Brain Research. 258(1). 53–58. 5 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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