Steven B Feinstein, MD, FACC, is Professor of Medicine and Director of Echocardiology at Rush University Medical Center. Previous positions include Professor of Medicine, Associate Chief of Cardiology at the University of Illinois at Chicago Medical Center (1992 to 1997) and Associate Professor of Medicine (Cardiology) at the University of Chicago Medical Center (1984 to 1992). He has been involved with numerous committees and organizations, including the Chicago Heart Association, the American Society of Echocardiology, and the European Society of Cardiology. He has been on the editorial board the American Journal of Physiologic Imaging. Dr Feinstein is also widely published in several respected medical journals.