Kouichirou Okamoto

2.4k total citations
110 papers, 1.7k citations indexed

About

Kouichirou Okamoto is a scholar working on Neurology, Genetics and Radiology, Nuclear Medicine and Imaging. According to data from OpenAlex, Kouichirou Okamoto has authored 110 papers receiving a total of 1.7k indexed citations (citations by other indexed papers that have themselves been cited), including 45 papers in Neurology, 27 papers in Genetics and 20 papers in Radiology, Nuclear Medicine and Imaging. Recurrent topics in Kouichirou Okamoto's work include Glioma Diagnosis and Treatment (25 papers), Intracranial Aneurysms: Treatment and Complications (13 papers) and Advanced MRI Techniques and Applications (10 papers). Kouichirou Okamoto is often cited by papers focused on Glioma Diagnosis and Treatment (25 papers), Intracranial Aneurysms: Treatment and Complications (13 papers) and Advanced MRI Techniques and Applications (10 papers). Kouichirou Okamoto collaborates with scholars based in Japan, United States and Russia. Kouichirou Okamoto's co-authors include S. Tokiguchi, Kunio Sakai∞, Kazuhiro Ishikawa, J. Ito, Hitoshi Takahashi, Akiyoshi Kakita, Masatoyo Nishizawa, T. Furusawa, Jusuke Ito and Izumi Kawachi and has published in prestigious journals such as Brain, Neurology and Annals of Neurology.

In The Last Decade

Kouichirou Okamoto

105 papers receiving 1.7k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Kouichirou Okamoto Japan 21 558 350 343 338 295 110 1.7k
Shiro Ohue Japan 27 638 1.1× 325 0.9× 257 0.7× 197 0.6× 315 1.1× 79 1.7k
Francesca Granata Italy 27 616 1.1× 273 0.8× 334 1.0× 137 0.4× 420 1.4× 145 2.0k
Francesco Signorelli Italy 26 723 1.3× 426 1.2× 198 0.6× 144 0.4× 299 1.0× 100 1.8k
Karen L. Salzman United States 31 909 1.6× 554 1.6× 303 0.9× 238 0.7× 763 2.6× 77 2.6k
Yeon‐Lim Suh South Korea 26 509 0.9× 745 2.1× 223 0.7× 180 0.5× 302 1.0× 94 1.9k
Anastasia Zikou Greece 23 247 0.4× 273 0.8× 443 1.3× 154 0.5× 177 0.6× 67 1.4k
Évelyne Emery France 26 986 1.8× 279 0.8× 222 0.6× 174 0.5× 381 1.3× 114 2.1k
W. Wichmann Switzerland 24 913 1.6× 365 1.0× 201 0.6× 361 1.1× 472 1.6× 65 2.0k
Paul A. Caruso United States 22 305 0.5× 234 0.7× 261 0.8× 99 0.3× 202 0.7× 93 1.6k
Masahiko Wanibuchi Japan 22 876 1.6× 257 0.7× 264 0.8× 169 0.5× 475 1.6× 185 1.8k

Countries citing papers authored by Kouichirou Okamoto

Since Specialization
Citations

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

Fields of papers citing papers by Kouichirou Okamoto

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kouichirou Okamoto

This figure shows the co-authorship network connecting the top 25 collaborators of Kouichirou Okamoto. A scholar is included among the top collaborators of Kouichirou Okamoto 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 Kouichirou Okamoto. Kouichirou Okamoto 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.
Natsumeda, Manabu, Akihide Koyama, Jun Watanabe, et al.. (2025). Diagnosis of Leptomeningeal Disease in Diffuse Midline Gliomas by Detection of H3F3A K27M Mutation in Circulating Tumor DNA of Cerebrospinal Fluid. Pediatric Blood & Cancer. 72(4). e31535–e31535. 1 indexed citations
2.
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Seto, Hiroki, Ryosuke Ogura, Tetsuya Hiraishi, et al.. (2023). Preoperative three-dimensional multifusion imaging aiding successful microvascular decompression of a cerebellopontine angle lipoma: associated hemifacial spasm. Illustrative case. Journal of Neurosurgery Case Lessons. 5(12). 1 indexed citations
4.
5.
Natsumeda, Manabu, Hironaka Igarashi, Ryosuke Ogura, et al.. (2021). Detection of 2-Hydroxyglutarate by 3.0-Tesla Magnetic Resonance Spectroscopy in Gliomas with Rare IDH Mutations: Making Sense of “False-Positive” Cases. Diagnostics. 11(11). 2129–2129. 6 indexed citations
6.
Okamoto, Kouichirou, Hironaka Igarashi, Masato Watanabe, et al.. (2019). Vascular Hyperintensity on Fluid-Attenuated Inversion Recovery Indicates the Severity of Hypoperfusion in Acute Stroke. Journal of Stroke and Cerebrovascular Diseases. 29(2). 104467–104467. 4 indexed citations
7.
Sano, Masakazu, et al.. (2019). <i>De Novo</i> Pineal Region Germinoma in the Seventh Decade of Life: A Case Report. NMC Case Report Journal. 6(3). 75–78. 2 indexed citations
8.
Okada, Masayasu, Manabu Natsumeda, Hideaki Abe, et al.. (2019). EGFRvIII Is Expressed in Cellular Areas of Tumor in a Subset of Glioblastoma. Neurologia medico-chirurgica. 59(3). 89–97. 16 indexed citations
9.
Ninomiya, Itaru, Masato Kanazawa, Yasuhisa Akaiwa, et al.. (2017). Apparent diffusion coefficient reduction might be a predictor of poor outcome in patients with posterior reversible encephalopathy syndrome. Journal of the Neurological Sciences. 381. 1–3. 5 indexed citations
10.
Gondo, Yuichiro, Shinichi Araya, Megumi Nakanishi, et al.. (2012). Progressive multifocal leukoencephalopathy developed 26 years after renal transplantation. Clinical Neurology and Neurosurgery. 115(8). 1482–1484. 6 indexed citations
11.
Okazaki, Ken‐ichi, Yongjuan Fu, Yasushi Nishihira, et al.. (2009). Alzheimer's disease: Report of two autopsy cases with a clinical diagnosis of corticobasal degeneration. Neuropathology. 30(2). 140–148. 12 indexed citations
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Sato, Kanako, et al.. (2003). A case of germinoma in the septum pellucidum manifesting as amnesia and hemiparesis. Acta Neurochirurgica. 145(10). 923–926. 13 indexed citations
14.
Okamoto, Kouichirou, et al.. (2003). Diffusion-weighted MRI of haemangioblastomas and other cerebellar tumours. Neuroradiology. 45(4). 212–219. 58 indexed citations
15.
Tomita, Masaki, et al.. (2002). Epidural blood patch for treatment of spontaneous intracranial hypotension. Acta Anaesthesiologica Scandinavica. 46(6). 747–750. 28 indexed citations
16.
Tanaka, Maiko, et al.. (1999). [Sensory ataxic neuropathy presenting anti-a-fodrin antibody associated with rheumatoid arthritis].. PubMed. 39(9). 935–9. 1 indexed citations
17.
Okamoto, Kouichirou, Jusuke Ito, & Kunio Sakai∞. (1999). Cicatricial fibromatosis mimics metastatic medulloblastoma.. PubMed. 20(3). 472–3. 3 indexed citations
18.
Okamoto, Kouichirou, J. Ito, T. Furusawa, et al.. (1997). Solitary plasmacytomas of the occipital bone: a report of two cases. European Radiology. 7(4). 503–506. 16 indexed citations
19.
Okamoto, Kouichirou, Junji Ito, & S. Tokiguchi. (1990). [The MR findings on the corpus callosum of normal young volunteers].. PubMed. 50(8). 954–63. 11 indexed citations
20.
Watanabe, Hiroaki, et al.. (1989). [A case of retrograde amnesia of 22 years, continued for 4 days following a general anesthesia accompanied by a permanent amnesia of these 4 days after the complete recovery from the retrograde amnesia].. PubMed. 38(2). 236–40. 1 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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