R Kruger*1, Z Lu2, H Miller3, W Moore4, S Goddu5, (1) Marshfield Clinic, Marshfield, WI, (2) Columbia Presbyterian Medical Center, New York, NY, (3) Computerized Imaging Ref Systems, Inc, Norfolk, VA, (4) Sonora Medical Systems, Longmont, CO, (5) Washington University, St.Louis, MO.