Frontiers and hotspots of 18F-FDG PET/CT radiomics: A bibliometric analysis of the published literature

Abstract

ObjectiveTo illustrate the knowledge hotspots and cutting-edge research trends of 18F-FDG PET/CT radiomics, the knowledge structure of was systematically explored and the visualization map was analyzed.MethodsStudies related to 18F-FDG PET/CT radiomics from 2013 to 2021 were identified and selected from the Web of Science Core Collection (WoSCC) using retrieval formula based on an interview. Bibliometric methods are mainly performed by CiteSpace 5.8.R3, which we use to build knowledge structures including publications, collaborative and co-cited studies, burst analysis, and so on. The performance and relevance of countries, institutions, authors, and journals were measured by knowledge maps. The research foci were analyzed through research of keywords, as well as literature co-citation analysis. Predicting trends of 18F-FDG PET/CT radiomics in this field utilizes a citation burst detection method.ResultsThrough a systematic literature search, 457 articles, which were mainly published in the United States (120 articles) and China (83 articles), were finally included in this study for analysis. Memorial Sloan-Kettering Cancer Center and Southern Medical University are the most productive institutions, both with a frequency of 17. 18F-FDG PET/CT radiomics–related literature was frequently published with high citation in European Journal of Nuclear Medicine and Molecular Imaging (IF9.236, 2020), Frontiers in Oncology (IF6.244, 2020), and Cancers (IF6.639, 2020). Further cluster profile of keywords and literature revealed that the research hotspots were primarily concentrated in the fields of image, textural feature, and positron emission tomography, and the hot research disease is a malignant tumor. Document co-citation analysis suggested that many scholars have a co-citation relationship in studies related to imaging biomarkers, texture analysis, and immunotherapy simultaneously. Burst detection suggests that adenocarcinoma studies are frontiers in 18F-FDG PET/CT radiomics, and the landmark literature put emphasis on the reproducibility of 18F-FDG PET/CT radiomics features.ConclusionFirst, this bibliometric study provides a new perspective on 18F-FDG PET/CT radiomics research, especially for clinicians and researchers providing scientific quantitative analysis to measure the performance and correlation of countries, institutions, authors, and journals. Above all, there will be a continuing growth in the number of publications and citations in the field of 18F-FDG PET/CT. Second, the international research frontiers lie in applying 18F-FDG PET/CT radiomics to oncology research. Furthermore, new insights for researchers in future studies will be adenocarcinoma-related analyses. Moreover, our findings also offer suggestions for scholars to give attention to maintaining the reproducibility of 18F-FDG PET/CT radiomics features.

Visual impact beam plots: Analyzing research profiles and bibliometric metrics using the following-leading clustering algorithm (FLCA)

“…The conventional IBPs possess distinct characteristics, [5][6][7][8][9] which include each article is represented by a dot on the plot, the rows correspond to publication years, while the columns represent normalized citations, ranging from 0% to 100% based on the research discipline, and by clicking on a dot, the associated article can be accessed and read online. The improved version of IBPs is anticipated to offer a more comprehensive research profile by incorporating additional information such as h-index and x-index, [10][11][12][13] self-citation rate, [14] citation network along with article clusters (e.g., timezone view on cooccurrence status of the keywords in the elite controller field [15] and landscape view of cocited reference cluster analysis [16] produced by CiteSpace software [17] ), and the representative article denoted by the weighted centrality degree (WCD) [18] among citing and cited articles (e.g., dual-map overlay of journals [19] using CiteSpace software [17] ). These enhancements aim to provide readers with important and meaningful insights into the researcher impact, self-citation patterns, and thematic clusters of their publications at a glance.…”

“…Citation networks have been instrumental in identifying article clusters, as demonstrated by the time zone view on the co-occurrence status of keywords in the elite controller field [15] and the landscape view of cocited reference cluster analysis [16] generated using CiteSpace software. [17] By incorporating citation links between articles, similar to those observed in the time zone and landscape views, the enhanced IBP can showcase representative articles based on WCD, [18] along with the computation of self-citation rates.…”

“…The resulting enhanced IBPs for each author can be seen in Figures 5 to 6. [37][38][39] We would like to acknowledge the valuable insights provided by the timezone and landscape views [15,16] in CiteSpace software. [17] The citations between the citing and cited articles were incorporated into the enhanced IBPs, further enriching the visual representation.…”

Top 100 Most-Cited Papers in Herpes Zoster from 2000 to 2022: A Bibliometric Study

“…Keywords are high-level summaries and condensations of topics in an article. 21 High-frequency keywords represent popular topics in a research field. 22 A total of 448 keywords were included in this study, of which 326 keywords were studied at a frequency of one.…”