If you've been reading here, then you know that interventional radiologists are the ones to seek out for diagnosis/treatment, not a neurologist.
Your question about whether your heart issues preclude treatment would be better directed towards one of them, I'm sure. Have you looked at the list of doctors involved in CCSVI treatment?
http://liberation-treatment.com/liberat ... nt/doctors
I'm not sure how current the list is but I would start by getting a list of interventional radiologists in your area and inquiring whether they are familiar with CCSVI diagnostics and treatment. Even if that doesn't pan out, it will help all MSer's because the more demand that is created, the more doctors will get involved and help us.
If you are in a hurry, then you can contact one of the doctors on the list who is already performing diagnostics/treatment.