Automatic dosimetric verification of online adapted plans on the Unity MR-Linac using 3D EPID dosimetry

The Elekta Unity MR-Linac, a combination of a 1.5T MRI scanner and a linear accelerator, is presently one of the systems available for online MR-guided adaptive workflows [1,2],[3]. Patient specific quality assurance (PSQA) programs are typically performed using MR-compatible detector devices [4,5],[6] before treatment starts for the reference plan and, if required, retrospectively for a subset of the online delivered plans. These checks can detect transfer, machine or treatment planning system errors, but they don ’t verify the actual dose delivered to the patient.
Source: Radiotherapy and Oncology - Category: Radiology Authors: Tags: Original Article Source Type: research