I once heard the experience of having an MRI (magnetic resonance imaging) described as follows:
Take a metal ironing board minus its cover and put it down on the ground. Stretch out on it with a metal wastebasket on your head. Have someone beat on the wastebasket with a rubber mallet for at least 20 minutes while you stay completely still.
This is an excellent description.
A friend's husband is having this procedure done today. Please feel free to support him by having your own faux-MRI.