Having done this (showing video to people in an MRI), I think I'm qualified to respond.
There are two methods we've used, one was a goggle system where an array of optical fibers, one per pixel, are brought from the scanner tube to the control room and coupled to a LED display. The resolution is atrocious, and the thing is heavy, but it gets attached to the head coil so the person inside does not have to bear the weight.
The method we are using now is to attach a mirror to the head coil, and have a huge flatscreen outside the tube. You show mirrored images on the screen, and since the screen is big enough it covers the entire visual field. Works better.
Might I suggest a projector, with a zoom showing on a small piece of frosted plexi? I have used this method to project an image onto a "screen" that was underwater (and quite invisible until struck by the projector beam).
There are two methods we've used, one was a goggle system where an array of optical fibers, one per pixel, are brought from the scanner tube to the control room and coupled to a LED display. The resolution is atrocious, and the thing is heavy, but it gets attached to the head coil so the person inside does not have to bear the weight.
The method we are using now is to attach a mirror to the head coil, and have a huge flatscreen outside the tube. You show mirrored images on the screen, and since the screen is big enough it covers the entire visual field. Works better.