S. Van de Water

OC-0551: Advantage of IMPT over IMRT in treatment of gynaecological cancer with para-aortic nodal involvement

Purpose or Objective: Combining the capabilities of high resolution soft tissue MR imaging and intensity modulated radiation therapy into a hybrid device has the potential to increase the accuracy of radiotherapy. However, it is known that the magnetic field of the MR manipulates the trajectory of the secondary electrons and leads to a deviation of dose especially at the interfaces between high and low density materials. This study aims to introduce a routine for the evaluation of magnetic field effects to dose delivery and plan optimization using Monte Carlo simulations.

SP-0010: Selection of patients for proton therapy: a physicists view

ESTRO 35 2016 _____________________________________________________________________________________________________ attention to the radiotherapy planning and delivery elements, and careful systematic and prospective documentation of tumor and normal tissue outcomes. Even if randomised trials are deemed unsuited to the setting, protocol based approaches in registered phase I/II trials are appropriate to enhance standards and should probably include audit and quality assurance processes, as well as realistic stopping rules to address unexpected or aberrant outcomes.