Abstract
Background: Lung ultrasound (LUS) is gaining recognition as an indispensable diagnostic tool in critical care.
Objective: The study aimed to characterize the global research landscape and trend of LUS with quantification and visualization approaches.
Methods: Documents related to LUS published between 2007 and 2023 were selected from the Web of Science Core Collection and identified. Visualization and statistical analysis were conducted with the VOSviewer 1.6.18, CiteSpace 5.7.R5, and Bibliometrix 4.1.0 Package, including analysis of the trend of global publications, prominent countries, active institutions, and funding agencies, key authors and journals, co-cited references, and keywords.
Results: A total of 3010 publications, including 2434 articles and 576 reviews, were retrieved. The output of LUS-related research has increased steadily over the years, especially after 2018. Italy (n=756; 25.12%) has shown the highest output, being the country with the highest total citations (23423 times). The most influential author was Gargani Luna with 52 documents, who worked at the Consiglio Nazionale delle Ricerche. Chest and Intensive Care Medicine with high citations and impact factor scores were the most influential journals. Besides “lung ultrasonography”, the keywords developed included “coronavirus disease 2019 (COVID-19)”, “acute respiratory distress syndrome”, and “acute heart failure”.
Conclusion: Research output on LUS has increased steadily, especially after 2018. Italy and the United States are staying ahead in this field. Research collaboration still needs to be strengthened. This comprehensive analysis has presented the global research landscape and trends of LUS-related research, providing valuable information for researchers to pursue further exploration.
Keywords: Lung ultrasound, Ultrasonography, COVID-19, Pneumonia, Bibliometric analysis, Medical imaging.
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