If its a spine MRI, post it on the Neck and Back forum, and include your symptoms.
Here's the link:
http://www.medhelp.org/forums/Back--Neck/show/63
I might be able to tell you what some words in your report mean, but a doctor needs to explain what the results mean. As far as calling the dr. goes, often, the squeaky wheel gets the grease, so I hope you don't give up on calling- how about first thing they're open, hopefully tomorrow morning?