School of Computer Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, China.|School of Computer Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, China.|Department of Radiology and Imaging Sciences, School of Medicine, Indiana University, Indianapolis, IN, USA.|Department of Radiology and Imaging Sciences, School of Medicine, Indiana University, Indianapolis, IN, USA.|Department of Radiology and Imaging Sciences, School of Medicine, Indiana University, Indianapolis, IN, USA.|Department of Radiology and Imaging Sciences, School of Medicine, Indiana University, Indianapolis, IN, USA.|Department of Radiology and Imaging Sciences, School of Medicine, Indiana University, Indianapolis, IN, USA.|School of Computer Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, China.|School of Computer Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, China.