Steinberg told me that with the MRIdian SBRT they are not actually seeing any difference in side effects and they were starting to see some side effects from SpaceOar. It is fairly rare to have an issue but it can displace the cancer and also sometimes doesn’t sit exactly where they want. Plus when side effects happen they are not good. I had a friend who had a section of bowel removed because it infiltrated. So with them telling me they are seeing no difference with MRIdian and that there was no reason for me to get it and my friend having an issue I skipped it and don’t have any issues. Maybe the advice is based on your specific cancer and where it is since they have the ability to be very focal. I’ve also heard Barrigel is better. Unless ViewRay gets bought out soon I imagine this is all moot since they are stopping support the end of this month.