This is a must see presentation by Dr. Michael Drake of Stanford at the annual scientific meeting of the Society of Interventional Radiologists session on the frontiers of IR.
It is still available online.
This is the perfect thing to provide local interventional radiologists since Dr. Dake is very convincing and argues that the venous problems should be fixed because opening the veins causes "global symptoms attributable to MS, but not referrable to a specific neuro-anatomic loci (ie, fatigue, headache, heat sensitivity, "brain fog," urinary urgency, etc,) show short-term improvement and in some cases (low EDSS) completely resolve."
Dake notes that "this suggests that these particular "MS" symptoms may be more accurately categorized as related to venous obstruction.
Dake's presentation starts at 45 minutes. You just slide the play ball until it registers 45 minutes to see just his presentation.