Electrical and Computer Engineering, University of Pittsburgh, Pittsburgh, PA, USA.|Electrical and Computer Engineering, University of Pittsburgh, Pittsburgh, PA, USA.|Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN, USA.|Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN, USA.|Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN, USA.|Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN, USA.|Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.|Electrical and Computer Engineering, University of Pittsburgh, Pittsburgh, PA, USA.|Electrical and Computer Engineering, University of Pittsburgh, Pittsburgh, PA, USA.