I once paid for my own MRI scan. I was well advised by Martyn speight to shop around, as the prices vary a lot. I ended up having it at a local NHS hospital he recommended, but paying, which seemed an odd arrangement. It was a lot of money, but much less than it might have been. It was rather tiring, not the procedure itself, which was fine, but waiting for it to happen, as the machine kept over-heating and having to have a rest. I was the only patient who had come equipped for all eventualities, with food, drink etc. You also need to check they aren't going to play you some dreadful radio station to keep you amused while in the machine. I believe some hospitals let you bring in your own music. Good luck.