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Updated: Feb 16, 2026
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Comparing Bibliometric Analysis Using PubMed, Scopus, and Web of Science Databases
Published on: October 24, 2019
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Radiology as a pillar in AI-based COVID-19 research: Insights from a diverse bibliometric analysis
A Navarro Ballester1, J A Merino Bonilla2, L H Ros Mendoza3
1Departamento de Radiología, Hospital General Universitari de Castelló, Castellón de la Plana, Castellón, Spain.
Radiologia
|February 14, 2026
Summary
Artificial intelligence (AI) significantly impacted COVID-19 research, particularly in diagnostics and healthcare optimization. Bibliometric analysis reveals key research themes and influential publications in this rapidly evolving field.
Area of Science:
- Bibliometrics
- Artificial Intelligence
- Public Health
Background:
- The COVID-19 pandemic accelerated research into artificial intelligence (AI) applications within healthcare.
- This study examines the intellectual structure and knowledge dissemination in COVID-19 and AI research.
Purpose of the Study:
- To map the research landscape of AI in COVID-19 studies.
- To identify influential publications and the conceptual framework.
- To understand knowledge flow and research trends.
Main Methods:
- Bibliographic data sourced from Web of Science and Scopus (8057 documents).
- Descriptive citation analysis of top 1000 cited papers.
- Bibliographic coupling analysis of the entire dataset.
- Analysis and visualization using R Bibliometrix/Biblioshiny and VOSviewer.
Main Results:
- Predominance of original research (85.21%) with a surge post-pandemic onset.
- China and the United States led publication output, with significant international collaboration.
- Key research clusters identified: AI-driven diagnostics and healthcare resource optimization.
- Influential themes centered on diagnostic imaging and AI algorithms.
Conclusions:
- AI has been pivotal in addressing the COVID-19 crisis, especially in diagnostics and healthcare management.
- Bibliometric analysis offers insights into AI's multifaceted contributions and future research directions.
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