Were you having headaches in a particular area that made them suspect and do the MRI? Did they do a special MRI or can they spot an anurysm (sp?) in any MRI they do? My dad had an anurysm and I have been worried because I have headaches in the same spot he did. My doctors tell me not to worry... but I do worry anyway.
I hope you get some information that is helpful to you. You are in my thoughts and prayers!

~Friend