MRI's are kind of neat, I have had them done. Here is my handy tip, which I don't know why people don't think to tell you before you go:

No metal on your upper body. Which means, as you are female, a "sports bra" - one with no metal hooks - is what you need to wear. If you do that, and leave your jewelry, watch and rings either at home, or in your purse, then you can A. not have to worry about valuables getting stolen during your MRI, and B. you won't have to change into one of those drafty and oh-so-attractive "hospital gowns."

I had MRIs done of my head, back before and after I had brain surgery, and it's loud, but afterwards I got to see my brain in slices and live to tell about it!