MRIs are expensive. X-Rays are dangerous, but if you’re about to give someone radiotherapy I would think negligible. Especially if it means you can better targe

MRIs are expensive. X-Rays are dangerous, but if you’re about to give someone radiotherapy I would think negligible. Especially if it means you can better target the treatment dose. Also getting secondary cancers years down the line isn’t an issue for palliative type treatments. So plenty of uses.