FLASH radiotherapy at a crossroads: a bibliometric perspective on progress and challenges

Abstract Background Flash radiotherapy (FLASH-RT), an emerging modality utilizing ultra-high dose-rate (UHDR) irradiation (typically > 40 Gy/s), has demonstrated a unique capacity to preserve normal tissue integrity while maintaining tumor control efficacy compared to conventional radiotherapy. D...

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Main Authors: Peng Wang, Yugeng Gao, Can Chen, Xiaoxin Zhao, Yuying Zhang, Taorui Liu, Haoran Jiang, Zhe Wang, Xiang Zhao, Jianjun Li
Format: Article
Language:English
Published: Springer 2025-08-01
Series:Discover Oncology
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Online Access:https://doi.org/10.1007/s12672-025-03400-7
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author Peng Wang
Yugeng Gao
Can Chen
Xiaoxin Zhao
Yuying Zhang
Taorui Liu
Haoran Jiang
Zhe Wang
Xiang Zhao
Jianjun Li
author_facet Peng Wang
Yugeng Gao
Can Chen
Xiaoxin Zhao
Yuying Zhang
Taorui Liu
Haoran Jiang
Zhe Wang
Xiang Zhao
Jianjun Li
author_sort Peng Wang
collection DOAJ
description Abstract Background Flash radiotherapy (FLASH-RT), an emerging modality utilizing ultra-high dose-rate (UHDR) irradiation (typically > 40 Gy/s), has demonstrated a unique capacity to preserve normal tissue integrity while maintaining tumor control efficacy compared to conventional radiotherapy. Despite exponential growth in FLASH-RT research over the past decade, its scientific landscape has not yet been systematically characterized through bibliometric analysis. This study only includes articles from the Web of Science Core Collection (WoSCC) and is limited to English-language publications, which may introduce database and language biases. Methods Relevant articles and reviews on FLASH-RT were retrieved from the WoSCC database. Bibliometric analysis and scientific knowledge mapping were performed using the R packages Bibliometrix, CiteSpace, and VOSviewer, in conjunction with the online analytical tools provided by Web of Science (WoS). Results A total of 572 publications from 2013 to 2025, spanning 179 countries/regions and involving 2,049 institutions, were analyzed. The United States, Switzerland, and China were the leading contributors. The University of Lausanne had the highest research output. These publications appeared in 96 different journals, with Medical Physics contributing the most studies. Among 2995 authors, Vozenin MC had the highest publication count and H-index, while Favaudon V’s papers received the most citations. Frequent keywords included irradiation, flash radiotherapy, radiation therapy, and cells. Keyword clustering revealed eleven major research directions, primarily focusing on pencil beam scanning and dosimetry. Conclusion This first bibliometric analysis of FLASH-RT research highlights key trends, influential contributors, and challenges. These findings provide valuable insights into research frontiers and hotspots, guiding future studies and collaborations.
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spelling doaj-art-b2ec4f0fa96d43898bbea4433691dbcb2025-08-20T03:06:50ZengSpringerDiscover Oncology2730-60112025-08-0116112010.1007/s12672-025-03400-7FLASH radiotherapy at a crossroads: a bibliometric perspective on progress and challengesPeng Wang0Yugeng Gao1Can Chen2Xiaoxin Zhao3Yuying Zhang4Taorui Liu5Haoran Jiang6Zhe Wang7Xiang Zhao8Jianjun Li9Department of Oncology, Southwest Hospital, Third Military Medical University (Army Medical University)JCCU Translational Surgical Oncology (A430), German Cancer Research Center (DKFZ)Department of Oncology, Southwest Hospital, Third Military Medical University (Army Medical University)Department of Oncology, Southwest Hospital, Third Military Medical University (Army Medical University)Department of Oncology, Southwest Hospital, Third Military Medical University (Army Medical University)Department of Oncology, Southwest Hospital, Third Military Medical University (Army Medical University)Department of Oncology, Southwest Hospital, Third Military Medical University (Army Medical University)Department of Oncology, Southwest Hospital, Third Military Medical University (Army Medical University)Department of Oncology, Southwest Hospital, Third Military Medical University (Army Medical University)Department of Oncology, Southwest Hospital, Third Military Medical University (Army Medical University)Abstract Background Flash radiotherapy (FLASH-RT), an emerging modality utilizing ultra-high dose-rate (UHDR) irradiation (typically > 40 Gy/s), has demonstrated a unique capacity to preserve normal tissue integrity while maintaining tumor control efficacy compared to conventional radiotherapy. Despite exponential growth in FLASH-RT research over the past decade, its scientific landscape has not yet been systematically characterized through bibliometric analysis. This study only includes articles from the Web of Science Core Collection (WoSCC) and is limited to English-language publications, which may introduce database and language biases. Methods Relevant articles and reviews on FLASH-RT were retrieved from the WoSCC database. Bibliometric analysis and scientific knowledge mapping were performed using the R packages Bibliometrix, CiteSpace, and VOSviewer, in conjunction with the online analytical tools provided by Web of Science (WoS). Results A total of 572 publications from 2013 to 2025, spanning 179 countries/regions and involving 2,049 institutions, were analyzed. The United States, Switzerland, and China were the leading contributors. The University of Lausanne had the highest research output. These publications appeared in 96 different journals, with Medical Physics contributing the most studies. Among 2995 authors, Vozenin MC had the highest publication count and H-index, while Favaudon V’s papers received the most citations. Frequent keywords included irradiation, flash radiotherapy, radiation therapy, and cells. Keyword clustering revealed eleven major research directions, primarily focusing on pencil beam scanning and dosimetry. Conclusion This first bibliometric analysis of FLASH-RT research highlights key trends, influential contributors, and challenges. These findings provide valuable insights into research frontiers and hotspots, guiding future studies and collaborations.https://doi.org/10.1007/s12672-025-03400-7FLASH radiotherapyUltra-high dose-rateBibliometric analysisWeb of scienceCiteSpaceVOSviewer
spellingShingle Peng Wang
Yugeng Gao
Can Chen
Xiaoxin Zhao
Yuying Zhang
Taorui Liu
Haoran Jiang
Zhe Wang
Xiang Zhao
Jianjun Li
FLASH radiotherapy at a crossroads: a bibliometric perspective on progress and challenges
Discover Oncology
FLASH radiotherapy
Ultra-high dose-rate
Bibliometric analysis
Web of science
CiteSpace
VOSviewer
title FLASH radiotherapy at a crossroads: a bibliometric perspective on progress and challenges
title_full FLASH radiotherapy at a crossroads: a bibliometric perspective on progress and challenges
title_fullStr FLASH radiotherapy at a crossroads: a bibliometric perspective on progress and challenges
title_full_unstemmed FLASH radiotherapy at a crossroads: a bibliometric perspective on progress and challenges
title_short FLASH radiotherapy at a crossroads: a bibliometric perspective on progress and challenges
title_sort flash radiotherapy at a crossroads a bibliometric perspective on progress and challenges
topic FLASH radiotherapy
Ultra-high dose-rate
Bibliometric analysis
Web of science
CiteSpace
VOSviewer
url https://doi.org/10.1007/s12672-025-03400-7
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