MR-guided VMAT – a case of when not if?

Author(s): Steven Jackson, Dr Rob Chuter

Hospital: The Christie NHS Foundation Trust, University of Manchester

Reference: RAD Magazine, 46, 547, 23-24


MR-guided radiotherapy is now being delivered in tens of centres around the world, with clinicians, clinical scientists, researchers, engineers and dual-trained radiographers working collaboratively to share their growing experience. The potential advantage of doing so is clear: the radiotherapy treatment will be based on a real-time picture of patient anatomy at high spatial resolution, with soft tissue contrast superior to CT.

The first MR-guided radiotherapy treatment was delivered by the ViewRay MRIdian cobalt machine in January 2014. The machine delivers radiotherapy from three Cobalt-60 sources mounted on a moveable gantry embedded in a 0.35T Siemens MR system. The Elekta Unity delivered its first set of MR-guided patient treatments between May and July 2017. It comprises a 7MV linear flattening filter free (FFF) linear accelerator (linac) with a 1.5T superconducting Philips MR system. The ViewRay MRIdian linac machine, a 6MV FFF beam with 0.35T Siemens MR scanner, treated its first patients soon after.

This website uses cookies to improve your experience. We'll assume you're ok with this, but you can opt-out if you wish. Accept Read more