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Researcher · Nihon University · Japan

Yutaka Koyama

Yutaka Koyama publishes mostly in Surgery, Cardiology and Cardiovascular Medicine and Pulmonary and Respiratory Medicine, on topics such as Coronary Interventions and Diagnostics, Cardiac Valve Diseases and Treatments and Congenital Heart Disease Studies.

World rank
#1,184,196
of 1,633,909 ranked researchers
Rank in Japan
#72,290
of 114,622
Works
25
Citations
9
Citations per work
0.4

What does Yutaka Koyama research?

Surgery: 30.4%Cardiology and Cardiovascular Medicine: 26.1%Pulmonary and Respiratory Medicine: 21.7%Epidemiology: 8.7%other fields: 13.1%30%top field
Surgery30.4%Cardiology and Cardiovascular Medicine26.1%Pulmonary and Respiratory Medicine21.7%Epidemiology8.7%other fields13.1%

Shares of their own output, by the field each of their topics belongs to. The grey slice is everything not listed.

  1. 1Surgery30% of their works
  2. 2Cardiology and Cardiovascular Medicine26% of their works
  3. 3Pulmonary and Respiratory Medicine22% of their works
  4. 4Epidemiology9% of their works
  5. 5Oncology4% of their works
  6. 6Physiology4% of their works

Research topics

Which keywords describe Yutaka Koyama's research?

The keywords of their largest research topics: Atherosclerosis, Coronary Stents, Echocardiography, Guidelines, Myocardial Revascularization, Angioplasty, Aortic Dissection and Bicuspid Aortic Valve.

Size is their works in the topics tagged with each word, from their 8 largest topics. Each links to the topic it comes from most.

All 19 words, with their numbers
  1. Atherosclerosis52 topics
  2. Coronary Stents31 topic
  3. Echocardiography32 topics
  4. Guidelines32 topics
  5. Myocardial Revascularization31 topic
  6. Angioplasty21 topic
  7. Aortic Dissection21 topic
  8. Bicuspid Aortic Valve21 topic
  9. Cardiac Surgery21 topic
  10. Carotid Artery Stenosis21 topic
  11. Congenital Heart Disease21 topic
  12. Endarterectomy21 topic
  13. Peripheral Arterial Disease21 topic
  14. Surgical Aortic-Valve Replacement21 topic
  15. Transcatheter Aortic-Valve Replacement21 topic
  16. Cardiac Risk11 topic
  17. Chamber Quantification11 topic
  18. Diastolic Function11 topic
  19. Perioperative11 topic

Where does Yutaka Koyama work?

Yutaka Koyama's main affiliation in the publication record is Nihon University, Japan.

How many publications and citations does Yutaka Koyama have?

Science Explorer counts 25 works and 9 citations for Yutaka Koyama, ranking #1,184,196 of 1,633,909 researchers worldwide on the composite score.

Ranked on field-normalised excellence (50%), output (30%) and citations (20%). Counts come from OpenAlex author records, which occasionally merge different people who share a name or split one person into several.

Other researchers named Yutaka Koyama

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