human
I've never had an MRI before. How is it done?
assistant
An MRI uses magnetic fields to create images of the body. It’s a very safe procedure and doesn’t involve any radiation. The technician will ask you to lie down on a table, which is then moved into the machine. You may feel some pressure as the table moves into place, but that’s normal. Once in the machine, you will hear a loud noise and see flashing lights. This is because the magnets are creating the image. After about 20 minutes, the scan will be complete.