Toshiyuki Niki

867 total citations
28 papers, 588 citations indexed

About

Toshiyuki Niki is a scholar working on Cardiology and Cardiovascular Medicine, Surgery and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Toshiyuki Niki has authored 28 papers receiving a total of 588 indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Cardiology and Cardiovascular Medicine, 7 papers in Surgery and 5 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Toshiyuki Niki's work include Cardiovascular Function and Risk Factors (5 papers), Cardiac Imaging and Diagnostics (5 papers) and Cardiac Valve Diseases and Treatments (4 papers). Toshiyuki Niki is often cited by papers focused on Cardiovascular Function and Risk Factors (5 papers), Cardiac Imaging and Diagnostics (5 papers) and Cardiac Valve Diseases and Treatments (4 papers). Toshiyuki Niki collaborates with scholars based in Japan. Toshiyuki Niki's co-authors include Takeshi Soeki, Tetsuzo Wakatsuki, Hirotsugu Yamada, Masataka Sata, Koji Yamaguchi, Kenya Kusunose, Takashi Iwase, Yoshio Taketani, Noriko Tomita and Kunihiko Koshiba and has published in prestigious journals such as Journal of the American College of Cardiology, The American Journal of Cardiology and JACC. Cardiovascular imaging.

In The Last Decade

Toshiyuki Niki

28 papers receiving 575 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Toshiyuki Niki Japan 15 334 149 119 81 72 28 588
Simona Giubilato Italy 13 265 0.8× 189 1.3× 106 0.9× 112 1.4× 45 0.6× 23 575
Jonas Hallén Norway 15 369 1.1× 127 0.9× 127 1.1× 54 0.7× 39 0.5× 33 564
Mitsumasa Hirano Japan 12 366 1.1× 223 1.5× 84 0.7× 70 0.9× 148 2.1× 16 616
Keita Sano Japan 12 414 1.2× 196 1.3× 94 0.8× 80 1.0× 147 2.0× 23 632
Kiyotaka Kugiyama Japan 9 296 0.9× 119 0.8× 138 1.2× 51 0.6× 38 0.5× 12 513
Tomoyuki Kunishima Japan 15 283 0.8× 346 2.3× 161 1.4× 25 0.3× 52 0.7× 49 597
Toshiaki Yano Japan 14 453 1.4× 255 1.7× 113 0.9× 65 0.8× 176 2.4× 36 824
Jianlin Du China 17 320 1.0× 247 1.7× 71 0.6× 51 0.6× 65 0.9× 62 721
Takeshi Tobiume Japan 14 340 1.0× 146 1.0× 36 0.3× 34 0.4× 39 0.5× 38 585
Maria Varoudi Greece 14 318 1.0× 87 0.6× 77 0.6× 147 1.8× 50 0.7× 23 655

Countries citing papers authored by Toshiyuki Niki

Since Specialization
Citations

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

Fields of papers citing papers by Toshiyuki Niki

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Toshiyuki Niki

This figure shows the co-authorship network connecting the top 25 collaborators of Toshiyuki Niki. A scholar is included among the top collaborators of Toshiyuki Niki 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 Toshiyuki Niki. Toshiyuki Niki 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.
Yamaguchi, Koji, Takeshi Soeki, Tetsuzo Wakatsuki, et al.. (2015). Impact of Indoxyl Sulfate, a Uremic Toxin, on Non-Culprit Coronary Plaque Composition Assessed on Integrated Backscatter Intravascular Ultrasound. Circulation Journal. 79(8). 1773–1779. 6 indexed citations
3.
Niki, Toshiyuki, Tetsuzo Wakatsuki, Koji Yamaguchi, et al.. (2015). Effects of the Addition of Eicosapentaenoic Acid to Strong Statin Therapy on Inflammatory Cytokines and Coronary Plaque Components Assessed by Integrated Backscatter Intravascular Ultrasound. Circulation Journal. 80(2). 450–460. 66 indexed citations
4.
Soeki, Takeshi, Kunihiko Koshiba, Toshiyuki Niki, et al.. (2014). Effect of ghrelin on autonomic activity in healthy volunteers. Peptides. 62. 1–5. 24 indexed citations
5.
Kawano, Naoko, Koji Yamaguchi, Toshiyuki Niki, et al.. (2013). Two cases of acute myocardial infarction during combined chemotherapy in young patients with testicular cancer. Journal of Cardiology Cases. 7(6). e176–e180. 7 indexed citations
6.
Yamada, Hirotsugu, Susumu Nishio, Mika Bando, et al.. (2013). Massive tricuspid regurgitation due to pacemaker-lead puncture of the tricuspid valve: successful diagnosis by 3-dimensional echocardiography. Journal of Medical Ultrasonics. 41(1). 69–71. 2 indexed citations
7.
Soeki, Takeshi, Tomomi Matsuura, Toshiyuki Niki, et al.. (2013). Congenital long QT syndrome with compound mutations in the KCNH2 gene. Heart and Vessels. 29(4). 554–559. 5 indexed citations
8.
Soeki, Takeshi, Etsuko Uematsu, Tomomi Matsuura, et al.. (2013). Pentraxin 3 is a local inflammatory marker in atrial fibrillation. Heart and Vessels. 29(5). 653–658. 17 indexed citations
9.
Yagi, Shusuke, Masashi Akaike, Ken‐ichi Aihara, et al.. (2013). Pharmacology of Aldosterone and the Effects of Mineralocorticoid Receptor Blockade on Cardiovascular Systems.. PubMed. 29(3). 201–7. 3 indexed citations
10.
Yamaguchi, Koji, Tetsuzo Wakatsuki, Takeshi Soeki, et al.. (2013). Effects of Telmisartan on Inflammatory Cytokines and Coronary Plaque Component as Assessed on Integrated Backscatter Intravascular Ultrasound in Hypertensive Patients. Circulation Journal. 78(1). 240–247. 23 indexed citations
11.
Kusunose, Kenya, Hirotsugu Yamada, Susumu Nishio, et al.. (2012). Index-Beat Assessment of Left Ventricular Systolic and Diastolic Function during Atrial Fibrillation Using Myocardial Strain and Strain Rate. Journal of the American Society of Echocardiography. 25(9). 953–959. 76 indexed citations
12.
Bando, Mika, Takeshi Soeki, Toshiyuki Niki, et al.. (2011). Ventricular Tachycardia in Cardiac Sarcoidosis Controlled by Radiofrequency Catheter Ablation. Internal Medicine. 50(11). 1201–1206. 4 indexed citations
13.
Soeki, Takeshi, Toshiyuki Niki, Kenya Kusunose, et al.. (2011). Elevated concentrations of pentraxin 3 are associated with coronary plaque vulnerability. Journal of Cardiology. 58(2). 151–157. 43 indexed citations
14.
Yagi, Shusuke, Masashi Akaike, Ken‐ichi Aihara, et al.. (2011). Effect of Low-Dose (1 mg/day) Pitavastatin on Left Ventricular Diastolic Function and Albuminuria in Patients With Hyperlipidemia. The American Journal of Cardiology. 107(11). 1644–1649. 12 indexed citations
15.
Yagi, Shusuke, Masashi Akaike, Ken‐ichi Aihara, et al.. (2010). Ezetimibe Ameliorates Metabolic Disorders and Microalbuminuria in Patients with Hypercholesterolemia. Journal of Atherosclerosis and Thrombosis. 17(2). 173–180. 41 indexed citations
16.
Kusunose, Kenya, Hirotsugu Yamada, Susumu Nishio, et al.. (2010). DETECTION OF MYOCARDIAL AMYLOID INVOLVEMENT USING 2-DIMENTIONAL SPECKLE TRACKING ECHOCARDIOGRAPHY: UTILIZATION OF INNER AND OUTER MYOCARDIAL STRAIN AND STRAIN RATE. Journal of the American College of Cardiology. 55(10). A85.E804–A85.E804. 2 indexed citations
17.
Kusunose, Kenya, Hirotsugu Yamada, Susumu Nishio, et al.. (2010). Validation of Longitudinal Peak Systolic Strain by Speckle Tracking Echocardiography With Visual Assessment and Myocardial Perfusion SPECT in Patients With Regional Asynergy. Circulation Journal. 75(1). 141–147. 37 indexed citations
18.
Kusunose, Kenya, Hirotsugu Yamada, Susumu Nishio, et al.. (2009). Clinical Utility of Single-Beat E/e′ Obtained by Simultaneous Recording of Flow and Tissue Doppler Velocities in Atrial Fibrillation With Preserved Systolic Function. JACC. Cardiovascular imaging. 2(10). 1147–1156. 60 indexed citations
19.
Kusunose, Kenya, Hirotsugu Yamada, Susumu Nishio, et al.. (2008). Platypnea‐Orthodeoxia Syndrome Associated with Patent Foramen Ovale and Aortic Ectasia. Echocardiography. 26(1). 114–117. 14 indexed citations
20.
Yamaguchi, Koji, Tetsuzo Wakatsuki, Kenya Kusunose, et al.. (2008). A case of neurogenic myocardial stunning presenting transient left ventricular mid-portion ballooning simulating atypical takotsubo cardiomyopathy. Journal of Cardiology. 52(1). 53–58. 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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