Hi and welcome to the Chiari forum.
We all know how frustrating it is to just get a DX let alone a Dr that believes that the DX is the cause of our symptoms and then find one well informed and experienced with Chiari and ALL related conditions....
So we did compile a list of Drs, the list is not a referral nor an endorsement of those listed...it is meant to be used as a tool to research Drs other members have been to, treated by and liked.
http://www.medhelp.org/posts/Chiari-Malformation/CHIARI-DRS-LIST-CANADA/show/1270605
By spine MRI may I ask did it cover the entire spine, the cervical, thoracic and lumbar spine? Did you also have a brain MRI? ANd did the specialist also look for ALL related conditions?