I had to travel to CO to have Dr Sanders provide this. It is a dx test, not a treatment. I had it because I wanted to be absolutely certain before going fwd with surgery. I have to say though that it was not 100% convincing. My pain was reduced and my ROM increased but it only lasts 10-15 mins. I wish that Dr Sanders had a jungle gym or something in his office to let me try something I hadn't been able to do for so long. I think that would have felt more convincing. Sitting there and being able to turn my head further and have less pain was nothing compared to the visual I observed with the venogram. It is really something to see your pinched nerves and vessels so clear on a TV screen.