Dosimetric impact of CBCT-guided online adaptive stereotactic body radiotherapy for prostate cancer: a 250-fraction retrospective analysis.
PURPOSE To quantitatively evaluate the dosimetric benefit of CBCT-guided online adaptive radiotherapy (ART) for prostate SBRT compared with non-adaptive treatment planning, with emphasis on target coverage preservation and organ-at-risk (OAR) sparing. METHODS AND MATERIALS Fifty prostate patients treated on the Varia...