MRI & CT scan problems - help!

[ifIwerenotanandroid]

Over Christmas I had a failed attempt at an MRI scan. Now I'm facing a CT scan instead.

Can anyone tell me the difference between the two experiences as a patient? After what happened I'm really quite anxious about whether I can do the CT scan. The hospital isn't send out any patient information sheets so I have no idea about any of it.

Also try youtube, you can normally see and hear the sounds of the scanners, they normally make these videos for kids but I found it useful.