Matto: That’s more of a question for a RO. However, here is a link to a web page on the Viewray web site. They make theMRIdian machine. Lots of good info including the latest Mirage randomized trial study which is, I believe, a big deal.
https://viewray.com/for-patients/how-mridian-works/prostate/
In its indications for use paragraph it states: “ The MRIdian Linac system, with magnetic resonance imaging capabilities, is intended to provide stereotactic radiosurgery and precision radiotherapy for lesions, tumors, and conditions anywhere in the body where radiation treatment is indicated. The MRIdian Linac System is not appropriate for all patients, including those who are not candidates for magnetic resonance imaging.”