I agree with Marie and Cheer. Dr. D was very clear that he was treating a stenosis. If you look at your written reports, there is very little said about MS (maybe in the medical history and the mention of T2 signal abnormalities); the base of the report is on venous obstruction (prior to the procedure) and then evaluation of flow after the stent placement. He is interested in improvements you have whether they are related to MS or not. Foremost he is interested in correcting the stenosis.