Originally Posted by Willravel

You've meditated before, right? I'm sure that tool would come in handy in occupying your mind elsewhere.

I used to be claustrophobic. When I was maybe 13ish, I had to get a CAT scan, but the tech was inexperienced and we had to repeat the procedure several times. I had to lie still in a tube with maybe a 2" diameter for hours on end. It took me maybe a half hour to calm myself down, but after that I went into a state of bliss and calm. The hours went by quickly. After that, I got to eat at one of my favorite restaurants, Tarantino's (it's not relevant to the subject at hand, but I can never miss an opportunity to talk about good seafood). I'm sure that if you were ever put in this situation, you could put your mind in a calm place so that the healing process could be assisted.