1. Camerad Technologies, LLC, Decatur, GA.
2. Department of Radiology and Imaging Science, Emory University School of Medicine, Atlanta, GA.
3. School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA.
4. Present address: Department of Radiology, University of Alabama at Birmingham, 619 19th St S (JT N455E), Birmingham, AL 35249-6830.