MRI!!! This is a longer episode...hang in there. There is a lot of information in this episode, however we do try to keep it light so that you out there don't get bored to death, LOL.  None the less, if you have a broader understanding of the modality, when its your turn to have one of these scans maybe you'll be able to have a better understanding of what to expect and have an easier time performing your study.  Sit back and relax and most of all enjoy.