Ryoo Yamamoto

537 total citations
13 papers, 57 citations indexed

About

Ryoo Yamamoto is a scholar working on Epidemiology, Neurology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Ryoo Yamamoto has authored 13 papers receiving a total of 57 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Epidemiology, 5 papers in Neurology and 5 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Ryoo Yamamoto's work include Acute Ischemic Stroke Management (5 papers), Cerebrovascular and Carotid Artery Diseases (5 papers) and Venous Thromboembolism Diagnosis and Management (3 papers). Ryoo Yamamoto is often cited by papers focused on Acute Ischemic Stroke Management (5 papers), Cerebrovascular and Carotid Artery Diseases (5 papers) and Venous Thromboembolism Diagnosis and Management (3 papers). Ryoo Yamamoto collaborates with scholars based in Japan. Ryoo Yamamoto's co-authors include Ken Johkura, Yoshiharu Nakae, Fumiaki Tanaka, Yosuke Kudo, Yuichi Kawabata, Shingo Ikeda, Hiroshi Doi, Hiroichi Ishikawa, Yoshiyuki Kuroiwa and Kazunori Kikuchi and has published in prestigious journals such as Journal of the Neurological Sciences, Journal of Neurology and Journal of Stroke and Cerebrovascular Diseases.

In The Last Decade

Ryoo Yamamoto

11 papers receiving 55 citations

Peers

Ryoo Yamamoto

NEURO

PMH

PPCH

RNMI

CMN

Bruce Keyser United States

Gnanamurthy Sivakumar United Kingdom

Natan Bornstein Israel

Nelson Maldonado United States

Ilaria Grisendi Italy

Madeline Chadehumbe United States

Vera Braatz Brazil

Isabelle Michelet France

Bryan J. Lynch Ireland

T. Lehousse France

Bruce Keyser United States

Ryoo Yamamoto

24 ×1.3

NEURO

13 ×0.7

PMH

6 ×0.4

PPCH

28 ×2.0

RNMI

5 ×0.4

CMN

Citations per year, relative to Ryoo Yamamoto Ryoo Yamamoto (= 1×) peers Bruce Keyser

Countries citing papers authored by Ryoo Yamamoto

Since Specialization

Citations

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

Fields of papers citing papers by Ryoo Yamamoto

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ryoo Yamamoto

This figure shows the co-authorship network connecting the top 25 collaborators of Ryoo Yamamoto. A scholar is included among the top collaborators of Ryoo Yamamoto 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 Ryoo Yamamoto. Ryoo Yamamoto is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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13 of 13 papers shown

Ueda, Toshihiro, Yasuhiro Hasegawa, Masataka Takeuchi, et al.. (2025). Comparative analysis of outcome-associated factors following endovascular treatment for intracranial atherosclerotic disease and cardioembolism: A subanalysis of the K-NET registry. Interventional Neuroradiology. 4004437528–4004437528.

Yamamoto, Ryoo, et al.. (2024). Coaxial Method of PTA Balloon and Aspiration catheter using the delivery wire of a stent retriever for tandem occlusion: CoMBAt tandem occlusion. Interventional Neuroradiology. 3994325732–3994325732. 1 indexed citations

Nakai, Yasunobu, Ryoo Yamamoto, Tetsuya Yamamoto, et al.. (2023). Efficacy and safety of thrombectomy for acute ischaemic stroke in patients with pre-stroke mRS scores of 2–3: Real-world evaluation from an open-label, prospective, multicentre, observational study. Interventional Neuroradiology. 31(6). 778–785. 1 indexed citations

Mochizuki, Takahiro, Satoru Shimizu, Ryoo Yamamoto, et al.. (2023). Cerebral foreign body granulomas after mechanical thrombectomy: Two case reports and a review of the literature. Journal of Stroke and Cerebrovascular Diseases. 32(3). 106990–106990. 3 indexed citations

Nakai, Yasunobu, et al.. (2022). Visual suppression of vestibulo-ocular reflex in patients treated with carotid artery revascularization: A potential biomarker for cerebral perfusion. Journal of the Neurological Sciences. 445. 120534–120534.

Yamamoto, Ryoo, et al.. (2019). Anomalous anastomosis between the external carotid artery and vertebrobasilar artery via the hypoglossal canal: a case report and review of literature. Surgical and Radiologic Anatomy. 41(7). 849–852. 4 indexed citations

Yamamoto, Ryoo, Yoshiharu Nakae, Fumiaki Tanaka, & Ken Johkura. (2016). D-Dimer versus International Normalized Ratio of Prothrombin Time in Ischemic Stroke Patients Treated with Sufficient Warfarin. Journal of Stroke and Cerebrovascular Diseases. 25(7). 1781–1785. 4 indexed citations

Nakae, Yoshiharu, Yosuke Kudo, Ryoo Yamamoto, et al.. (2015). Relationship between cortex and pulvinar abnormalities on diffusion-weighted imaging in status epilepticus. Journal of Neurology. 263(1). 127–132. 22 indexed citations

Yamamoto, Ryoo, Ken Johkura, Yoshiharu Nakae, & Fumiaki Tanaka. (2014). The Mechanism of Ipsilateral Ataxia in Lacunar Hemiparesis: SPECT Perfusion Imaging. European Neurology. 73(1-2). 106–111. 5 indexed citations

10.

Johkura, Ken, et al.. (2011). Wrong-way deviation: Contralateral conjugate eye deviation in acute supratentorial stroke. Journal of the Neurological Sciences. 308(1-2). 165–167. 7 indexed citations

11.

Yamamoto, Ryoo, Kazuo Koyama, Takashi Kurokawa, & Yoshiyuki Kuroiwa. (2010). Brainstem infarction due to vertebral artery fenestration in a young adult man: A case report. Nosotchu. 32(2). 174–178. 1 indexed citations

12.

Yamamoto, Ryoo, et al.. (2009). A case of cavernous angioma in the lower pons, showing subacute onset of unilateral cranial nerve palsy and segmental sensory disturbance. Rinsho Shinkeigaku. 49(1). 32–36. 2 indexed citations

13.

Yamamoto, Ryoo, et al.. (2007). Postmortem computed tomography and magnetic resonance imaging in a case of terminal-stage small cell lung cancer: an experience of autopsy imaging in tumor-related death. Radiation Medicine. 25(2). 84–87. 7 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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