Also, ck out the questions on the MSN site...not all will apply but maybe you can find some questions you want answers to.
I think the important question is to ask about an interventional radiologists involvement in the surgery and the doctor's experience with VMs.
P.S. I have mailed Dr. Perkins for his recommendations...I will let you know when I hear from him.
Feel free to email me anytime. firstname.lastname@example.org