Dosimetric impact of intrafraction prostate rotation and accuracy of gating, multi-leaf collimator tracking and couch tracking to manage rotation: an end-to-end validation using volumetric film measurements

Stereotactic body radiotherapy (SBRT) is increasingly being used in the treatment of localized prostate cancer (PCa) as ultrahypofractionated treatments have been demonstrated to provide good disease control with minimal toxicity and are more convenient for the patient [1-7]. However, due to the high dose-per-fraction delivered by such ultrahypofractionated treatments, there is a need for steep dose gradients to be employed with tighter than conventional margins as to limit exposure of surrounding organs at risk (OAR) [8,9].

Source: Radiotherapy and Oncology - November 29, 2020 Category: Radiology Authors: Robin De Roover, Rune Hansen, Wouter Crijns, Casper Gammelmark Muurholm, Kenneth Poels, Simon Skouboe, Karin Haustermans, Per Rugaard Poulsen, Tom Depuydt Tags: Original Article Source Type: research