Session

Overview: This symposium will focus on dose accumulation challenges and methodologies in brachytherapy. The discussion will cover dose summation approaches in combined brachytherapy and external beam radiotherapy, highlighting both clinical and research scenarios. Key aspects of image registration will be described, including different registration methods, their impact on dose summation accuracy, and considerations on quality assurance in brachytherapy. Finally, the session will address cumulative dose assessment in skin cancer applications, exploring the challenges of dose accumulation and the role of deformable image registration in improving accuracy in dose assessments.