Venography will always be the final word. Once a doctor is inside a patient's veins with a catheter and radiation, the stenosis and reflux become crystal clear. The problem is with the methods currently available BEFORE venography. Dr. Zamboni created a very specific doppler and transcranial doppler protocol - his Italian ethics committee demanded that he have absolute proof of stenosis/reflux before putting patients thru invasive venography. Not many diagnostic centers have transcranial doppler, because they must be utilized by an MD, not a tech, and it's expensive.
Dr. Michael Dake, who I approached with the Zamboni research last year, did not have transcranial doppler at his disposal, so he utilized the best technology he had, doppler and magnetic resonance venography....BUT ONCE INSIDE the patient with venography is when the stenosis and reflux are precisely located and indicated. Interventional radiologists (IR) are doctors, like Dake, who use radiation to see inside veins and treat them with angioplasty or stents.
So, as far as treatment is concerned-the doppler vs. MRV discussion is not a giant issue, because the final procedure to treat CCSVI will involve venography.
We'll have more facts/reporting about the conference from a TIMS member who attended.
Husband dx RRMS 3/07
dx dual jugular vein stenosis (CCSVI) 4/09