Koshi Matsuyama

1.1k total citations
23 papers, 856 citations indexed

About

Koshi Matsuyama is a scholar working on Cardiology and Cardiovascular Medicine, Radiology, Nuclear Medicine and Imaging and Surgery. According to data from OpenAlex, Koshi Matsuyama has authored 23 papers receiving a total of 856 indexed citations (citations by other indexed papers that have themselves been cited), including 20 papers in Cardiology and Cardiovascular Medicine, 7 papers in Radiology, Nuclear Medicine and Imaging and 5 papers in Surgery. Recurrent topics in Koshi Matsuyama's work include Cardiac electrophysiology and arrhythmias (9 papers), Cardiac Imaging and Diagnostics (7 papers) and Cardiac pacing and defibrillation studies (6 papers). Koshi Matsuyama is often cited by papers focused on Cardiac electrophysiology and arrhythmias (9 papers), Cardiac Imaging and Diagnostics (7 papers) and Cardiac pacing and defibrillation studies (6 papers). Koshi Matsuyama collaborates with scholars based in Japan. Koshi Matsuyama's co-authors include Hirofumi Yasue, Ken Okumura, Hisao Ogawa, Kazuo Gotō, Hiroo Miyagi, Kozaburo Matsuyama, Kiyotaka Kugiyama, Yasuhiro Morikami, Takeshi Tsuchiya and Hiromi Fujii and has published in prestigious journals such as Circulation, Journal of the American College of Cardiology and The American Journal of Cardiology.

In The Last Decade

Koshi Matsuyama

21 papers receiving 822 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Koshi Matsuyama Japan 12 657 391 145 125 71 23 856
K Matsuyama Japan 9 654 1.0× 328 0.8× 246 1.7× 191 1.5× 96 1.4× 16 866
Kozaburo Matsuyama Japan 9 529 0.8× 328 0.8× 132 0.9× 139 1.1× 59 0.8× 9 661
Yasuhiro Morikami Japan 12 971 1.5× 650 1.7× 292 2.0× 294 2.4× 78 1.1× 24 1.3k
Y Horio Japan 4 542 0.8× 442 1.1× 154 1.1× 98 0.8× 33 0.5× 8 672
J. M. Lablanche France 13 618 0.9× 437 1.1× 328 2.3× 75 0.6× 89 1.3× 36 880
F Akiyama Japan 4 586 0.9× 422 1.1× 165 1.1× 101 0.8× 32 0.5× 5 777
Giuseppe Pupita United Kingdom 14 500 0.8× 352 0.9× 188 1.3× 71 0.6× 34 0.5× 32 728
Hajime Horie Japan 16 572 0.9× 134 0.3× 204 1.4× 75 0.6× 66 0.9× 25 778
Hassan El‐Tamimi United Kingdom 12 503 0.8× 325 0.8× 234 1.6× 134 1.1× 41 0.6× 23 675
Norihiko Sugihara Japan 14 635 1.0× 181 0.5× 126 0.9× 40 0.3× 44 0.6× 33 769

Countries citing papers authored by Koshi Matsuyama

Since Specialization
Citations

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

Fields of papers citing papers by Koshi Matsuyama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Koshi Matsuyama

This figure shows the co-authorship network connecting the top 25 collaborators of Koshi Matsuyama. A scholar is included among the top collaborators of Koshi Matsuyama 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 Koshi Matsuyama. Koshi Matsuyama 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.
2.
Ogawa, Hisao, Hirofumi Yasue, Shuichi Oshima, et al.. (1995). Effect of the Initial Bolus Volume of Recombinant Tissue-Type Plasminogen Activator on Coronary Recanalization and Infarct Size in Japanese Acute Myocardial Infarction Patients.. Japanese Circulation Journal. 59(10). 663–672. 4 indexed citations
3.
Okumura, Ken, Hirofumi Yasue, Koshi Matsuyama, et al.. (1991). Effect of H1receptor stimulation on coronary artery diameter in patients with variant angina: Comparison with effect of acetylcholine. Journal of the American College of Cardiology. 17(2). 338–345. 49 indexed citations
4.
Gotō, Kazuo, Hirofumi Yasue, Ken Okumura, et al.. (1990). Magnesium deficiency detected by intravenous loading test in variant angina pectoris. The American Journal of Cardiology. 65(11). 709–712. 69 indexed citations
5.
Obata, Kenji, Hirofumi Yasue, Koshi Matsuyama, et al.. (1990). Atrial natriuretic polypeptide is removed by the lungs and released into the left atrium as well as the right atrium in humans. Journal of the American College of Cardiology. 15(7). 1537–1543. 26 indexed citations
6.
Oshima, Shuichi, Hisao Ogawa, Koshi Matsuyama, Ken Okumura, & Hirofumi Yasue. (1989). RELEASE OF FIBRINOPEPTIDE A INTO THE CORONARY CIRCULATION DURING ATTACKS IN PATIENTS WITH CORONARY SPASTIC ANGINA : Ischemic Heart Disease : 53 Annual Scientific Meeting, Japanese Circulation Society. Japanese Circulation Journal-english Edition. 53(8). 892. 1 indexed citations
7.
Ogawa, Hisao, et al.. (1989). Increased plasma fibrinopeptide a levels during attacks induced by hyperventilation in patients with coronary vasospastic angina. Journal of the American College of Cardiology. 14(1). 150–154. 36 indexed citations
8.
Yasue, Hirofumi, Koshi Matsuyama, Hisao Ogawa, et al.. (1989). Increased secretion of atrial natriuretic polypeptide in response to cardiac pacing.. Japanese Circulation Journal. 53(9). 1055–1060. 1 indexed citations
9.
Fujii, Hiromi, Hirofumi Yasue, Ken Okumura, et al.. (1988). Hyperventilation-induced simultaneous multivessel coronary spasm in patients with variant angina: An echocardiographic and arteriographic study. Journal of the American College of Cardiology. 12(5). 1184–1192. 70 indexed citations
10.
Kugiyama, Kiyotaka, Hirofumi Yasue, Ken Okumura, et al.. (1988). Suppression of exercise-induced angina by magnesium sulfate in patients with variant angina. Journal of the American College of Cardiology. 12(5). 1177–1183. 51 indexed citations
11.
Okumura, Ken, Hirofumi Yasue, Koshi Matsuyama, et al.. (1988). Sensitivity and specificity of intracoronary injection of acetylcholine for the induction of coronary artery spasm. Journal of the American College of Cardiology. 12(4). 883–888. 236 indexed citations
12.
Okumura, Ken, Koshi Matsuyama, Hiroo Miyagi, Takeshi Tsuchiya, & Hirofumi Yasue. (1988). Entrainment of idiopathic ventricular tachycardia of left ventricular origin with evidence for reentry with an area of slow conduction and effect of verapamil. The American Journal of Cardiology. 62(10). 727–732. 105 indexed citations
13.
Yasue, Hirofumi, et al.. (1988). Effects of intracoronary injection of acetylcholine on coronary arterial hemodynamics and diameter. The American Journal of Cardiology. 62(13). 887–891. 37 indexed citations
14.
Morikami, Yasuhiro, et al.. (1988). Effects of phentolamine and atropine on angina pectoris induced by handgrip test in patients with variant angina. The American Journal of Cardiology. 61(1). 71–76. 10 indexed citations
15.
Matsuyama, Koshi, et al.. (1986). Thymolipoma simulating cardiomegaly: Diagnostic usefulness of computed tomography.. Circulation. 50(9). 839–842. 1 indexed citations
16.
Matsuyama, Koshi, et al.. (1986). Thymolipoma simulating cardiomegaly: Diagnostic usefulness of computed tomography.. Japanese Circulation Journal. 50(9). 839–842. 5 indexed citations
17.
Yasue, Hirofumi, et al.. (1986). Effects of intracoronary injection of acetylcholine on coronary arterial diameter. The American Journal of Cardiology. 57(11). 984–989. 82 indexed citations
18.
Matsuyama, Koshi, Ken Okumura, K Takaoka, et al.. (1984). Electrophysiologic effects of atropine and isoproterenol on the cardiac conduction system in familial amyloid polyneuropathy.. Japanese Circulation Journal. 48(5). 474–483. 4 indexed citations
19.
Matsuyama, Koshi, Yasuhiro Morikami, Ken Okumura, et al.. (1984). Blocking effect of verapamil on conduction over a catecholamine-sensitive bypass tract in exercise-induced Wolff-Parkinson-White syndrome. Journal of the American College of Cardiology. 4(1). 186–191. 15 indexed citations
20.
Okumura, Ken, et al.. (1983). Alterations in electrophysiological properties during canine myocardial ischemia. Variation with location in the ischemic zone in vivo.. Japanese Circulation Journal. 47(6). 661–670. 8 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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