Most MRIs in hospitals our house in the basement. The strong magnets required for the MRI involve significant shielding of the room to prevent the machines from affecting other medical and nonmedical devices. The cost to build a room or rooms that would allow an MRI to function around other sophisticated devices and monitors would seem, to me, to be prohibitive. I would also question the effect of the MRI's magnet on the OR instrumentation as well as anesthesia machines and monitors.