Gel Dosimetry Enables Volumetric Evaluation of Dose Distributions from an MR-Guided Linac

摘要

Magnetic resonance-guided radiation therapy (MRgRT) benefits from performing treatment response assessments at the beginning and end of treatment and also during the treatment itself allowing for more normal tissue sparing and better tumor conformality. Gel dosimeters have been shown to demonstrate 3D dose distributions from conventional treatment units. This qualitative study assessed the value of gel dosimetry to measure volumetric dose distributions delivered by an MR-linac (MRL) while using the MR component for readout.