Session

Overview: Recently, substantial interest in proton arc therapy, the proton therapy (PT) analogon to VMAT, has grown and lead to substantial translational research progress. Initially, the proton arc concept may seem somewhat counter-intuitive to the main PT principles, where the conventional treatment delivery can be performed with a single or few beams minimizing the patient's integral dose. However, with the recent development of novel planning optimization algorithms, new delivery mechanisms, and the compact size proton gantry, the concept is step-by-step brought into reality. In this session, an overview of the current status will be provided – analyzing the pros and cons as well as the challenges for broad clinical implementation. Also, a summary from the 2022 ESTRO physics workshop on this topic will be included.