Pilot Study on Response Assessment During MR-guided Radiation Therapy for Glioblastoma Multiforme

The study seeks to assess the response of glioblastoma multiforme to treatment using weekly low field (0.35 T) MR-images of the brain at a MRIdian® linac system during standard radiotherapy at the same system. A total of 20 patients in a single arm will be recruited for this investigation.

The imaging data will be used to evaluate the change in tumor volume over the course of the treatment and to perform radiomics in order to investigate the possibility of response prediction using these images.

In order to assure sufficient image quality, prior to the main investigation, a group of up to 20 volunteers has MR scans taken with identical sequences to the main study phase.