Hideki Okayama

3.8k total citations
114 papers, 1.7k citations indexed

About

Hideki Okayama is a scholar working on Cardiology and Cardiovascular Medicine, Radiology, Nuclear Medicine and Imaging and Surgery. According to data from OpenAlex, Hideki Okayama has authored 114 papers receiving a total of 1.7k indexed citations (citations by other indexed papers that have themselves been cited), including 78 papers in Cardiology and Cardiovascular Medicine, 32 papers in Radiology, Nuclear Medicine and Imaging and 30 papers in Surgery. Recurrent topics in Hideki Okayama's work include Cardiovascular Function and Risk Factors (28 papers), Cardiac Imaging and Diagnostics (26 papers) and Cardiomyopathy and Myosin Studies (20 papers). Hideki Okayama is often cited by papers focused on Cardiovascular Function and Risk Factors (28 papers), Cardiac Imaging and Diagnostics (26 papers) and Cardiomyopathy and Myosin Studies (20 papers). Hideki Okayama collaborates with scholars based in Japan, United States and United Kingdom. Hideki Okayama's co-authors include Jitsuo Higaki, Takumi Sumimoto, Kunio Hiwada, Mareomi Hamada, Go Hiasa, Yuji Shigematsu, Kazuhisa Nishimura, Shinji Inaba, Katsuji Inoue and Akiyoshi Ogimoto and has published in prestigious journals such as Journal of Biological Chemistry, Circulation and SHILAP Revista de lepidopterología.

In The Last Decade

Hideki Okayama

108 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
Hideki Okayama Japan 24 1.1k 413 309 235 204 114 1.7k
Yuji Shigematsu Japan 23 1.2k 1.1× 347 0.8× 291 0.9× 215 0.9× 147 0.7× 107 1.7k
Shu Kasama Japan 26 1.3k 1.2× 723 1.8× 364 1.2× 162 0.7× 338 1.7× 103 2.2k
Mitsumasa Ohyanagi Japan 24 943 0.9× 362 0.9× 619 2.0× 299 1.3× 374 1.8× 128 1.9k
Hisashi Masugata Japan 25 781 0.7× 360 0.9× 338 1.1× 183 0.8× 213 1.0× 120 1.8k
Fátima Franco Portugal 13 1.0k 0.9× 330 0.8× 199 0.6× 333 1.4× 130 0.6× 58 1.6k
Takuji Toyama Japan 23 1.3k 1.2× 796 1.9× 391 1.3× 174 0.7× 304 1.5× 108 2.0k
Ikuo Yokoyama Japan 21 838 0.8× 808 2.0× 337 1.1× 185 0.8× 222 1.1× 57 1.6k
Hirohíde Matsuo Japan 23 1.1k 1.0× 430 1.0× 314 1.0× 198 0.8× 368 1.8× 129 1.9k
Bharati Shivalkar Belgium 21 1.2k 1.1× 517 1.3× 575 1.9× 150 0.6× 265 1.3× 50 2.0k
Roberta Montisci Italy 24 1.1k 1.0× 689 1.7× 531 1.7× 123 0.5× 144 0.7× 118 1.7k

Countries citing papers authored by Hideki Okayama

Since Specialization
Citations

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

Fields of papers citing papers by Hideki Okayama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Hideki Okayama

This figure shows the co-authorship network connecting the top 25 collaborators of Hideki Okayama. A scholar is included among the top collaborators of Hideki Okayama 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 Hideki Okayama. Hideki Okayama 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.
Okayama, Hideki, et al.. (2022). Caution is needed when evaluating coronary slit-like lesions with FFR-CT. Cardiovascular Intervention and Therapeutics. 37(4). 747–748. 1 indexed citations
2.
Saito, Makoto, Katsuji Inoue, Akiyoshi Ogimoto, et al.. (2021). Cardiac amyloidosis screening using a relative apical sparing pattern in patients with left ventricular hypertrophy. Cardiovascular Ultrasound. 19(1). 30–30. 11 indexed citations
3.
Higaki, Akinori, et al.. (2021). Image similarity‐based cardiac rhythm device identification from X‐rays using feature point matching. Pacing and Clinical Electrophysiology. 44(4). 633–640. 7 indexed citations
4.
5.
Saito, Makoto, Takumi Sumimoto, Akiyoshi Ogimoto, et al.. (2020). Semiquantitative assessment of the relative apical sparing pattern of longitudinal strain for cardiac amyloidosis identification. Echocardiography. 37(9). 1422–1429. 3 indexed citations
6.
Okayama, Hideki, et al.. (2015). Contrast-enhanced ultrasound for the evaluation of acute renal infarction. Journal of Medical Ultrasonics. 43(1). 141–143. 3 indexed citations
7.
Kawakami, Hiroshi, Takeshi Aiba, Hideki Okayama, et al.. (2013). Variable phenotype expression with a frameshift mutation of the cardiac sodium channel gene SCN5A. SHILAP Revista de lepidopterología. 29(5). 291–295. 2 indexed citations
8.
Higashi, Haruhiko, Hideki Okayama, Makoto Saito, et al.. (2013). Role of Transthoracic Doppler Echocardiography in Patients With a Proximal Left Coronary Artery Lesion That Cannot be Diagnosed by Computed Tomography Angiography. The American Journal of Cardiology. 112(7). 938–942. 4 indexed citations
9.
Higashi, Haruhiko, Hideki Okayama, Makoto Saito, et al.. (2013). Relationship Between Augmentation Index and Left Ventricular Diastolic Function in Healthy Women and Men. American Journal of Hypertension. 26(11). 1280–1286. 22 indexed citations
10.
Higashi, Haruhiko, et al.. (2011). Atherosclerotic Renal Artery Stenosis Mimicking Fibromuscular Dysplasia. European Journal of Vascular and Endovascular Surgery. 42(5). 717–717. 1 indexed citations
11.
Nishimura, Kazuhisa, Hideki Okayama, Katsuji Inoue, et al.. (2011). Direct measurement of radial strain in the inner-half layer of the left ventricular wall in hypertensive patients. Journal of Cardiology. 59(1). 64–71. 23 indexed citations
12.
Aono, Jun, Jun Suzuki, Akiyoshi Ogimoto, et al.. (2010). Abstract 12460: Deletion of the Angiotensin II Type 1a Receptor Prevents Atherosclerotic Plaque Rupture. Circulation. 122. 1 indexed citations
13.
Nagai, Takayuki, Hideki Okayama, Kazuhisa Nishimura, et al.. (2010). Initial Japanese experience and long-term follow-up with a new active fixation coronary sinus lead, the StarFix 4195. Journal of Cardiology Cases. 1(3). e176–e179. 2 indexed citations
14.
Funada, Junichi, et al.. (2010). Influence of meal intake on pulse wave indices in type 2 diabetes. Hypertension Research. 33(7). 743–747. 5 indexed citations
15.
Inaba, Shinji, Hideki Okayama, Haruhiko Higashi, et al.. (2010). Usefulness of transthoracic Doppler echocardiography for noninvasive assessment of coronary blood flow in a patient with symptomatic myocardial bridging. European Journal of Echocardiography. 12(3). E15–E15. 5 indexed citations
16.
Nishimura, Kazuhisa, Hideki Okayama, Katsuji Inoue, et al.. (2009). Visualization of traumatic tricuspid insufficiency by three-dimensional echocardiography. Journal of Cardiology. 55(1). 143–146. 10 indexed citations
17.
Matsuoka, Hiroshi, et al.. (2009). Bare metal stent implantation for in-stent restenosis with a drug-eluting stent. Journal of Cardiology. 55(1). 135–138. 4 indexed citations
18.
Saito, Makoto, Hideki Okayama, Kazuhisa Nishimura, et al.. (2008). Determinants of left ventricular untwisting behaviour in patients with dilated cardiomyopathy: analysis by two-dimensional speckle tracking. Heart. 95(4). 290–296. 42 indexed citations
19.
Nishimura, Kazuhisa, Hideki Okayama, Makoto Saitoh, et al.. (2007). PE-143 Patients with a Hypertensive Response to Light Exercise Have Impaired Left Ventricular Diastolic Function in the Absence of Resting Hypertension(Cardiac function, basic/clinical-2, The 71st Annual Scientific Meeting of the Japanese Circulation Society). Japanese Circulation Journal-english Edition. 71. 360. 1 indexed citations
20.
Okayama, Hideki, et al.. (1997). Alterations in expression of sarcoplasmic reticulum gene in Dahl rats during the transition from compensatory myocardial hypertrophy to heart failure. Journal of Hypertension. 15(12). 1767–1774. 15 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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