Where you are, will you actually get access to the Data? Or will they just review and store it for you? Just interested in the output and what you actually get to keep.
Loads up fine on Linux. You can move around in 2D slices, or in a reconstructed 3D (albeit the resolutions of the MRI I had wasn't all that great)
In my experience it's as simple as asking, they give you a CD-R containing some DICOM files and a freeware DICOM viewer. Maybe more modern health systems will let you just download the files.