Nobuo Oka

544 total citations
62 papers, 441 citations indexed

About

Nobuo Oka is a scholar working on Neurology, Epidemiology and Cellular and Molecular Neuroscience. According to data from OpenAlex, Nobuo Oka has authored 62 papers receiving a total of 441 indexed citations (citations by other indexed papers that have themselves been cited), including 31 papers in Neurology, 18 papers in Epidemiology and 11 papers in Cellular and Molecular Neuroscience. Recurrent topics in Nobuo Oka's work include Intracranial Aneurysms: Treatment and Complications (16 papers), Traumatic Brain Injury and Neurovascular Disturbances (13 papers) and Vascular Malformations Diagnosis and Treatment (11 papers). Nobuo Oka is often cited by papers focused on Intracranial Aneurysms: Treatment and Complications (16 papers), Traumatic Brain Injury and Neurovascular Disturbances (13 papers) and Vascular Malformations Diagnosis and Treatment (11 papers). Nobuo Oka collaborates with scholars based in Japan, United States and Czechia. Nobuo Oka's co-authors include Akira Takaku, Shunro Endo, Iwao Yamakami, Akira Yamaura, Michiharu Nishijima, Hirohito Yano, Takayoshi Kato, Jun Shinoda, Yoshihiro Muragaki and Toru Iwama and has published in prestigious journals such as SHILAP Revista de lepidopterología, Neurosurgery and Human Brain Mapping.

In The Last Decade

Nobuo Oka

56 papers receiving 420 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Nobuo Oka Japan 12 249 92 74 74 70 62 441
N. Grimoldi Italy 11 142 0.6× 79 0.9× 82 1.1× 41 0.6× 84 1.2× 21 310
M. Zumkeller Germany 10 205 0.8× 74 0.8× 89 1.2× 41 0.6× 54 0.8× 31 420
J.L. Barcia-Salorio Spain 14 290 1.2× 137 1.5× 83 1.1× 32 0.4× 72 1.0× 39 485
Satoshi Inoha Japan 12 138 0.6× 51 0.6× 103 1.4× 71 1.0× 62 0.9× 45 432
Fumio Kanda Japan 9 269 1.1× 56 0.6× 76 1.0× 159 2.1× 77 1.1× 22 543
Shigeo Saiwai Japan 11 170 0.7× 134 1.5× 49 0.7× 42 0.6× 33 0.5× 20 411
Satoshi Suzuki Japan 12 202 0.8× 57 0.6× 63 0.9× 42 0.6× 69 1.0× 29 549
Michael P. Merchut United States 12 207 0.8× 97 1.1× 42 0.6× 50 0.7× 51 0.7× 18 418
Ryunosuke Uranishi Japan 13 331 1.3× 110 1.2× 57 0.8× 26 0.4× 57 0.8× 38 491
M. Bonamini Italy 9 114 0.5× 87 0.9× 35 0.5× 100 1.4× 117 1.7× 23 399

Countries citing papers authored by Nobuo Oka

Since Specialization
Citations

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

Fields of papers citing papers by Nobuo Oka

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Nobuo Oka

This figure shows the co-authorship network connecting the top 25 collaborators of Nobuo Oka. A scholar is included among the top collaborators of Nobuo Oka 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 Nobuo Oka. Nobuo Oka 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
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Higuchi, Yoshinori, Hajime Yokota, Yasuo Iwadate, et al.. (2022). The role of optimal cut-off diagnosis in 11C-methionine PET for differentiation of intracranial brain tumor from non-neoplastic lesions before treatment. Clinical Imaging. 92. 124–130. 3 indexed citations
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Uchino, Yoshio, Miyoko Hayakawa, Shinji Onodera, et al.. (2018). Increased brain glucose metabolism in chronic severe traumatic brain injury as determined by longitudinal 18F-FDG PET/CT. Journal of Clinical Neuroscience. 57. 20–25. 11 indexed citations
6.
Onodera, Shinji, Kazuaki Yokoyama, Miyoko Hayakawa, et al.. (2018). Semi-quantitative Assessment Using [<sup>18</sup>F]FDG Tracer in Patients with Severe Brain Injury. Journal of Visualized Experiments. 6 indexed citations
7.
Murayama, Takashi, et al.. (2011). Changes in the brain activation balance in motor-related areas after constraint-induced movement therapy; a longitudinal fMRI study. Brain Injury. 25(11). 1047–1057. 15 indexed citations
8.
Kato, Takayoshi, Jun Shinoda, Nobuo Oka, et al.. (2008). Analysis of11C-methionine Uptake in Low-Grade Gliomas and Correlation with Proliferative Activity. American Journal of Neuroradiology. 29(10). 1867–1871. 79 indexed citations
9.
Yamakami, Iwao, Nobuo Oka, & Yoshinori Higuchi. (2007). Hyperactivity of the facial nucleus produced by chronic electrical stimulation in rats. Journal of Clinical Neuroscience. 14(5). 459–463. 23 indexed citations
10.
Yamakami, Iwao, Nobuo Oka, & Akira Yamaura. (2003). Intraoperative monitoring of cochlear nerve compound action potential in cerebellopontine angle tumour removal. Journal of Clinical Neuroscience. 10(5). 567–570. 20 indexed citations
11.
Takamura, Katsumi, et al.. (2001). EST Analysis of Genes That Are Expressed in the Neural Complex of Ciona intestinalis Adults. ZOOLOGICAL SCIENCE. 18(9). 1231–1236. 12 indexed citations
12.
Kobayashi, Shinji, et al.. (1999). Development of simplified process for KrF excimer halftone mask with chrome-shielding method. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 3873. 288–288. 2 indexed citations
13.
Mine, Seiichiro, Nobuo Oka, Akira Yamaura, & Yoshikata Nakajima. (1998). Presurgical functional localization of primary somatosensory cortex by dipole tracing method of scalp-skull-brain head model applied to somatosensory evoked potential. Electroencephalography and Clinical Neurophysiology/Evoked Potentials Section. 108(3). 226–233. 14 indexed citations
14.
Oka, Nobuo, et al.. (1992). Changes in the cerebral vascular bed in experimental hydrocephalus: An angio-architectural and histological study. Acta Neurochirurgica. 114(1-2). 43–50. 28 indexed citations
15.
Oka, Nobuo, et al.. (1992). [Clinical use of serum erythropoietin determination by the recombigen EPO RIA kit].. PubMed. 29(6). 701–7. 9 indexed citations
16.
Endo, Shunro, et al.. (1989). A case of septic cavernous sinus thrombosis with sequential dynamic angiographic changes. A case report. Surgical Neurology. 32(1). 59–63. 9 indexed citations
17.
Hazama, M., M. Fujisawa, Yoji Okamoto, et al.. (1988). [A case of a complete paraplegic fathering a girl following artificial insemination after an intrathecal neostigmine injection].. PubMed. 34(6). 1047–50. 1 indexed citations
18.
Oka, Nobuo, et al.. (1985). Angioarchitecture in Experimental Hydrocephalus. Pediatric Neurosurgery. 12(6). 294–299. 21 indexed citations
19.
Nishijima, Michiharu, et al.. (1984). Electrothrombosis of Spontaneous Carotid-Cavernous Fistula by Copper Needle Insertion. Neurosurgery. 14(4). 400–405.
20.
Oka, Nobuo. (1982). Somatosensory Evoked Potentials of Trigeminal Nerve by Electrical Stimulation : Normal Findings and Clinical Applications. 58(5). 289–296. 2 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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