Katsuyuki Obara

578 total citations
28 papers, 399 citations indexed

About

Katsuyuki Obara is a scholar working on Neurology, Pulmonary and Respiratory Medicine and Epidemiology. According to data from OpenAlex, Katsuyuki Obara has authored 28 papers receiving a total of 399 indexed citations (citations by other indexed papers that have themselves been cited), including 11 papers in Neurology, 8 papers in Pulmonary and Respiratory Medicine and 7 papers in Epidemiology. Recurrent topics in Katsuyuki Obara's work include Cerebrovascular and Carotid Artery Diseases (7 papers), Lymphoma Diagnosis and Treatment (5 papers) and Neurological Disease Mechanisms and Treatments (4 papers). Katsuyuki Obara is often cited by papers focused on Cerebrovascular and Carotid Artery Diseases (7 papers), Lymphoma Diagnosis and Treatment (5 papers) and Neurological Disease Mechanisms and Treatments (4 papers). Katsuyuki Obara collaborates with scholars based in Japan, United States and Australia. Katsuyuki Obara's co-authors include Kazuhiro Muramatsu, John Stirling Meyer, Karl F. Mortel, Yasuo Fukuuchi, Shutaro Takashima, Masahiro Kobari, Toshitaka Shirai, Fumio Gotoh, Takahiro Amano and Shigeru Nogawa and has published in prestigious journals such as Neurology, Stroke and Annals of Neurology.

In The Last Decade

Katsuyuki Obara

27 papers receiving 390 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Katsuyuki Obara Japan 10 143 112 93 85 80 28 399
Katja Krabbe Denmark 7 98 0.7× 125 1.1× 83 0.9× 82 1.0× 57 0.7× 8 350
Yuichi Satoh Japan 11 109 0.8× 92 0.8× 127 1.4× 95 1.1× 50 0.6× 30 400
YongSoo Shim South Korea 12 138 1.0× 107 1.0× 48 0.5× 92 1.1× 77 1.0× 40 443
Tommy Bosman Belgium 8 163 1.1× 81 0.7× 102 1.1× 32 0.4× 88 1.1× 11 351
Hidemitsu Miyazawa Japan 9 90 0.6× 57 0.5× 93 1.0× 127 1.5× 60 0.8× 12 499
C. Miller Fisher United States 7 182 1.3× 63 0.6× 125 1.3× 50 0.6× 55 0.7× 8 369
Sarah Benisty France 10 172 1.2× 115 1.0× 128 1.4× 25 0.3× 64 0.8× 18 395
B. A. Van Ketel Netherlands 5 134 0.9× 77 0.7× 93 1.0× 107 1.3× 60 0.8× 7 417
Pernille Iversen Denmark 13 86 0.6× 168 1.5× 55 0.6× 94 1.1× 33 0.4× 25 576
Maria A. Gieron United States 13 131 0.9× 169 1.5× 63 0.7× 35 0.4× 90 1.1× 21 475

Countries citing papers authored by Katsuyuki Obara

Since Specialization
Citations

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

Fields of papers citing papers by Katsuyuki Obara

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Katsuyuki Obara

This figure shows the co-authorship network connecting the top 25 collaborators of Katsuyuki Obara. A scholar is included among the top collaborators of Katsuyuki Obara 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 Katsuyuki Obara. Katsuyuki Obara 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.
Nishida, Hiroko, Hiroshi Suzuki, Masao Hori, & Katsuyuki Obara. (2018). Primary isolated bone marrow diffuse large B cell lymphoma with long-term complete remission. Leukemia Research Reports. 10. 11–15. 5 indexed citations
2.
Nishida, Hiroko, et al.. (2015). [Isolated central nervous system relapse in type II enteropathy-associated T cell lymphoma].. PubMed. 56(6). 692–8. 3 indexed citations
3.
Nishida, Hiroko, et al.. (2014). Optic nerve involvement of Waldenström’s macroglobulinemia: with autopsy findings. Neurological Sciences. 35(8). 1299–1302. 2 indexed citations
4.
Yoshino, Tetsuhiro, et al.. (2013). A Report of 2 Cases of Disseminated Invasive Aspergillosis with Myocarditis in Immunocompromised Patients. 3(4). 166–169. 3 indexed citations
5.
6.
Nishida, Hiroko, Masao Hori, & Katsuyuki Obara. (2011). Primary B-cell lymphoma of the cauda equina, successfully treated with high-dose methotrexate plus high-dose cytarabine: a case report with MRI findings. Neurological Sciences. 33(2). 403–407. 13 indexed citations
7.
Ohta, Kouichi, et al.. (2001). [Chronological changes of lacunar infarctions on fluid-attenuated inversion recovery magnetic resonance images].. PubMed. 41(6). 277–82. 1 indexed citations
8.
Obara, Katsuyuki, Yasuo Fukuuchi, Masahiro Kobari, Shigeru Watanabe, & Tomohisa Dembo. (1997). Cerebral hemodynamics in patients with Moyamoya disease and in patients with atherosclerotic occlusion of the major cerebral arterial trunks. Clinical Neurology and Neurosurgery. 99. S86–S89. 8 indexed citations
9.
Kobari, Masahiro, Katsuyuki Obara, Shigeru Watanabe, Tomohisa Dembo, & Yasuo Fukuuchi. (1996). Local cerebral blood flow in motor neuron disease: correlation with clinical findings. Journal of the Neurological Sciences. 144(1-2). 64–69. 13 indexed citations
10.
Meyer, John Stirling, Katsuyuki Obara, Kazuhiro Muramatsu, Karl F. Mortel, & Toshitaka Shirai. (1995). Cognitive Performance after Small Strokes Correlates with Ischemia, Not Atrophy of the Brain. Dementia and Geriatric Cognitive Disorders. 6(6). 312–322. 9 indexed citations
11.
Fukuuchi, Yasuo, et al.. (1995). Levodopa-induced local cerebral blood flow changes in Parkinson's disease and related disorders. Journal of the Neurological Sciences. 128(2). 212–218. 33 indexed citations
12.
Meyer, John Stirling, Kazuhiro Muramatsu, Karl F. Mortel, Katsuyuki Obara, & Toshitaka Shirai. (1995). Prospective CT Confirms Differences Between Vascular and Alzheimer’s Dementia. Stroke. 26(5). 735–742. 35 indexed citations
13.
Obara, Katsuyuki, John Stirling Meyer, Kazuhiro Muramatsu, & Karl F. Mortel. (1995). Cerebral density and perfusion measured among heart disease patients with and without stroke. Neurological Research. 17(5). 377–383. 1 indexed citations
14.
Takashima, Shutaro, et al.. (1994). CT changes associated with normal aging of the human brain. Journal of the Neurological Sciences. 123(1-2). 200–208. 34 indexed citations
15.
Obara, Katsuyuki, et al.. (1994). Lacune-associated cerebral hypoperfusion correlates with cognitive testing. Journal of Stroke and Cerebrovascular Diseases. 4(2). 121–129. 6 indexed citations
16.
Meyer, John Stirling, Katsuyuki Obara, Shutaro Takashima, Kazuhiro Muramatsu, & Karl F. Mortel. (1994). Problems Encountered with Longitudinal Neurological, Psychometric and Cerebral CT Imaging among Stroke Data Bank Patients with Dementia. Neuroepidemiology. 13(6). 340–344. 8 indexed citations
17.
Obara, Katsuyuki, John Stirling Meyer, Karl F. Mortel, & Kazuhiro Muramatsu. (1994). Cognitive declines correlate with decreased cortical volume and perfusion in dementia of Alzheimer type. Journal of the Neurological Sciences. 127(1). 96–102. 36 indexed citations
18.
Obara, Katsuyuki, et al.. (1993). Diaschisis. Neurological Research. 15(6). 362–366. 108 indexed citations
19.
Gotoh, Fumio, Yasuo Fukuuchi, Takahiro Amano, et al.. (1986). Comparison between Pial and Intraparenchymal Vascular Responses to Cervical Sympathetic Stimulation in Cats. Part 1. Under Normal Resting Conditions. Journal of Cerebral Blood Flow & Metabolism. 6(3). 342–347. 22 indexed citations
20.
Kobari, Masahiro, Fumio Gotoh, Yasuo Fukuuchi, et al.. (1985). Effects of (D-Met2, Pro5)-Enkephalinamide and Naloxone on Pial Vessels in Cats. Journal of Cerebral Blood Flow & Metabolism. 5(1). 34–39. 17 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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