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. 2024 Jul 22;65(4):433-449.
doi: 10.1093/jrr/rrae040.

Knowledge domains and emerging trends in radiotherapy in oesophageal cancer from 2004 to 2023: a bibliometric analysis and visualization study

Yue Feng  1 , Minghe Lv  1 , Su Zeng  1 , Hongwei Zeng  1 , Jingping Yu  1
Affiliations

Knowledge domains and emerging trends in radiotherapy in oesophageal cancer from 2004 to 2023: a bibliometric analysis and visualization study

Yue Feng et al. J Radiat Res. .

Abstract

Esophageal cancer (EC) is a malignant tumour with high morbidity and mortality rates. Recent studies have shown that much progress has been made in the research of radiotherapy in EC. This study aims to provide a comprehensive overview of the knowledge structure and research hotspots of radiotherapy in EC through bibliometrics. Publications related to radiotherapy in EC from 2014 to 2023 were searched on the web of science core collection database. VOSviewers, CiteSpace and R package 'bibliometrix' were used to conduct this bibliometric analysis. In total, 4258 articles from 76 countries led by China and the USA were included. The Chinese Academy of Medical Sciences-Peking Union Medical College has the highest number of publications. International Journal of Radiation Oncology Biology Physics is the most popular journal and also the most co-cited journal in this field. These publications come from 21 972 authors among which Liao Zhongxing had published the most papers and Cooper JS was co-cited most often. Neoadjuvant chemoradiotherapy and strategies based on it are the main topics in this research field. 'IMRT' and 'immunotherapy' are the primary keywords of emerging research hotspots. This is a bibliometric study that comprehensively summarizes the research trends and developments of radiotherapy in EC. This information identifies recent research frontiers and hot directions, which will provide a reference for scholars studying radiotherapy in EC.

Keywords: CiteSpace; VOSviewers; bibliometrics; esophageal cancer; radiotherapy.

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Conflict of interest statement

All authors declared no conflict of interest.

Figures

Fig. 1
Fig. 1
Publications screening flowchart.
Fig. 2
Fig. 2
Number of publications per year and the cumulative number.
Fig. 3
Fig. 3
Country production over time (Top 10).
Fig. 4
Fig. 4
The geographical distribution (A) and visualization of countries or regions (B) on research of radiotherapy in oesophageal cancer.
Fig. 5
Fig. 5
The visualization of institutions on research of radiotherapy in oesophageal cancer.
Fig. 6
Fig. 6
The visualization of journals (A) and co-cited journals (B) on research of radiotherapy in oesophageal cancer.
Fig. 7
Fig. 7
The dual-map overlay of journals on research of radiotherapy in oesophageal cancer. Notes: the citing journals are on the left, the cited journals are on the right, and the coloured path represents a citation relationship.
Fig. 8
Fig. 8
The visualization of authors (A) and co-cited authors (B) on research of radiotherapy in oesophageal cancer.
Fig. 9
Fig. 9
The visualization of co-cited references on research of radiotherapy in oesophageal cancer.
Fig. 10
Fig. 10
Top 10 references with strong citation bursts. A prominent bar indicates high citations in that year.
Fig. 11
Fig. 11
Keyword cluster analysis (A) and trend topic analysis (B).
See this image and copyright information in PMC

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