Eric Feigenbutz, BS, RVT and President of Arizona Doppler Specialists has taken special interest in providing the most accurate and comprehensive Doppler ultrasound screenings for CCSVI. Eric attended his first symposium on CCSVI at State University of New York Downstate Medical Center on July 26, 2010 to learn more about the CCSVI hypothesis, the specific protocol and to hear from specialists from around the world. He quickly realized that just reading about Dr. Zamboni’s protocol was not enough to provide accurate assessment for CCSVI, so Eric selected Buffalo Neuroimaging Analysis Center at Buffalo General Hospital in New York for training. He has trained each of our technologists to follow this specific and detailed protocol. Each technologist performing CCSVI Doppler ultrasound screenings for AZ Doppler has been trained to follow the Zamboni specific protocol.