Instead of relating the results of a blurry, overexposed scan, so poorly executed that the patients's name cannot be discerned and would get most techs fired. Please show where I may find the definitive MRI that would show the amount and extent of her supposed atrophied cerebral cortex.
Since you deem it so important to tie a person's life to the results of a scan or test at least use one that can be somewhat accurate.
It's been said here before, but a conventional brain MRI is not definitive at all and would add little to the argument one way or another. A PVS diagnosis is based primarily upon serial exams over time and is supplemented by functional studies - EEG, PET, and functional MRI. Any functional test, however, is going to be secondary to the results of the examinations.