Stereotactic Body Radiotherapy for Prostate Cancer

Abstract

Objectives: To provide an overview of the achievements and future research with stereotactic body radiotherapy (SBRT) in prostate cancer. Methods: SBRT publications for prostate cancer were retrieved from the Web of Science and Dimension database. Bibliometric analyses were performed using VOSviewer and Prism graph. Analysis of variance test was used to compare the publication, citation, and the mean citation between specialty journals. Network maps were produced to identify authors’ and countries’ collaboration clusters. Results: Between 2006 and 2020, 574 publications fulfilling the inclusion criteria were identified, and a significant growth trend in publication (PP=0.001) number was recognized over the period. The United States was the most productive country with 253 (44.2%) articles. The RED Journal had the highest number of publications (14%) and citations (19%). Urology journals published (P=0.01) and cited significantly less than radiation oncology journals (P=0.01). All open access and non–open access number of publications increased over time, with a significant difference between non–open access and open access journals (P<0.0001). Two author clusters were identified, in the United States with the collaboration of Canadian and British authors, and in Italy with the participation of European authors. Conclusion: The number of publications and citations on SBRT for prostate cancer has grown linearly in the last decades. The United States is the leading country in this research field, and the use of SBRT in oligometastatic disease, reirradiation, and salvage seems to be hot topics in this research field.