Ah, the end of individuality
No need to actually talk to your patient to get a history, you can just scan them and find the answer ;)
I can speak for the brain, not really much else of medicine.
The problem I think we will run into is information overload. Yes, it's wonderful to have such a detailed scan but what does it really mean? It looks cool, that's certain enough but without knowledge of how the brain is working on a level far beyond the imaging it's essentially useless. Showing me a 3D bump of a mass in the brain isn't going to tell me anything more than it would as a fuzzy mass on a CT. I'd still need to rely on probability to guess what the most likely diagnosis is given the location of the mass and the clinical findings. Until we know much more about the brain, these technologies are going to be underutilized (as fMRI is now).
On a positive note, technological advancement will help us understand the brain better but we need to be careful about how we "leverage" this technology as undisputed fact to the public. The truth of the matter is that brain science is anything but undisputed.