I believe everybody with MS should be imaged. The cost of doing the procedure is small. The problem, however, is the number of people who are adequately trained to do the duplex imaging of patients with CCSVI is small. There are currently three technicians trained in Canada by Zamboni to do the procedure. There is a fourth who lives in Niagara Falls and works in Buffalo. That's it. That's all you have.
Unless they follow the very rigorous protocol set up by Dr. Zamboni they'll get spurious results. What needs to happen is people need to be trained by someone who is very good at it, as is Dr. Zamboni, and then they can do the studies and have reproducible, reliable data. If they just read the book and say this is how to do it, they will do a flawed study, and the research will be useless.