Oddly, a lot of popularly used images of the brain are of my brain. I gave a permissive CC license on a still from an MRI of my brain many years ago on Flickr. I've seen my brain on academic journals, newspaper articles, magazine articles about crime, psychology, intelligence, and so on, for the last ten years. The bigger publications sometimes think to obfuscate my name from the MRI itself, but most don't.
When you get imaging done, it's often possible to request a DVD with the images - at the time, I used open source software called OSRIX to fly around the images and pick some stills.