Hiroyuki Okayasu
- Neurology top 5%
- Rheumatology top 10%
- Molecular Biology
- Radiology, Nuclear Medicine and Imaging
- Epidemiology
- Co-authors
- Fumio GotohAkiko KotoJohn Stirling MeyerYuko KitagawaH. TachibanaHisao TachibanaNorihiro SuzukiYoshihiro Wakayama
- Topics
- Traumatic Brain Injury and Neurovascular Disturbances (13 papers)Cerebrovascular and Carotid Artery Diseases (6 papers)Acute Ischemic Stroke Management (5 papers)
- Cited by
- NeurologyRheumatology
- Partner nations
- JapanUnited StatesUnited Kingdom
In The Last Decade
Hiroyuki Okayasu
26 papers receiving 464 citations
Peers
Comparison fields: 5 of 61
- Neurology 244
- Rheumatology 106
- Molecular Biology 97
- Radiology, Nuclear Medicine and Imaging 66
- Epidemiology 63
Countries citing papers authored by Hiroyuki Okayasu
This map shows the geographic impact of Hiroyuki Okayasu'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 Hiroyuki Okayasu with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Hiroyuki Okayasu more than expected).
Fields of papers citing papers by Hiroyuki Okayasu
This network shows the impact of papers produced by Hiroyuki Okayasu. 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 Hiroyuki Okayasu. The network helps show where Hiroyuki Okayasu may publish in the future.
Co-authorship network of co-authors of Hiroyuki Okayasu
This figure shows the co-authorship network connecting the top 25 collaborators of Hiroyuki Okayasu. A scholar is included among the top collaborators of Hiroyuki Okayasu 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 Hiroyuki Okayasu. Hiroyuki Okayasu is excluded from the visualization to improve readability, since they are connected to all nodes in the network.
All Works
| # | Work | Indexed citations |
|---|---|---|
| 1 | 8 | |
| 2 | [A case of plasma cell granuloma associated with cerebral infarction]. | 2 |
| 3 | [A case of cough hemiplegia]. | 1 |
| 4 | [A case of chronic toluene intoxication with abnormal MRI findings: abnormal intensity areas in cerebral white matter, basal ganglia, internal capsule, brain stem and middle cerebellar peduncle]. | 8 |
| 5 | [Anticardiolipin antibody in cerebral infarction]. | 2 |
| 6 | 0 | |
| 7 | 4 | |
| 8 | Changing Topographic Patterns of Human Cerebral Blood Flow with Age Measured by Xenon CT | 13 |
| 9 | 24 | |
| 10 | 6 | |
| 11 | 2 | |
| 12 | 37 | |
| 13 | 19 | |
| 14 | 16 | |
| 15 | 1 | |
| 16 | 7 | |
| 17 | Effect of nimodipine, a calcium antagonist, on cerebral vasospasm after subarachnoid hemorrhage in cats. | 24 |
| 18 | 1 | |
| 19 | Effects of nimodipine (Bay e 9736) on cerebral circulation in cats. | 37 |
| 20 | Role of noradrenergic system in cerebral arterial spasm after subarachnoid hemorrhage. | 3 |
About Hiroyuki Okayasu
Hiroyuki Okayasu is a scholar working on Neurology, Radiology, Nuclear Medicine and Imaging and Developmental Neuroscience, having authored 27 papers that have together received 489 indexed citations. Recurring topics across this work include Traumatic Brain Injury and Neurovascular Disturbances (13 papers), Cerebrovascular and Carotid Artery Diseases (6 papers) and Acute Ischemic Stroke Management (5 papers). The work is most often cited by research in Neurology (244 citations), Rheumatology (106 citations) and Neurology (49 citations). Hiroyuki Okayasu has collaborated with scholars based in Japan, United States and United Kingdom. Frequent co-authors include Fumio Gotoh, Akiko Koto, John Stirling Meyer, Yuko Kitagawa, H. Tachibana, Hisao Tachibana, Norihiro Suzuki, Yoshihiro Wakayama, Yasuo Fukuuchi and Takashi Okabe. Their work appears in journals such as Neurology, Stroke and Journal of neurosurgery.
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.