NEW: Published, blinded research done by venous specialists--112 pwMS, 67 healthy controls--using Zamboni criteria plus M-mode (Motion Mode) doppler ultrasound of the jugular valves, finds:

"Chronic cerebrospinal venous insufficiency is a haemodynamic condition strongly associated with multiple sclerosis and is not found in normal controls. The addition of M-mode ultrasound to the diagnostic protocol allows improved observation of venous valve abnormalities." http://phl.sagepub.com/content/early/2013/11/15/0268355513512823.abstract


Prevalence of chronic cerebrospinal venous insufficiency in multiple sclerosis: a blinded...
phl.sagepub.com
Objectives: To verify the prevalence of chronic cerebrospinal venous insufficiency in patients affected by different clinical forms of multiple sclerosis and in healthy subjects using the Zamboni ultrasound protocol combined with M-mode ultrasound examination.