1. College of Medicine and Biological Information Engineering, Northeastern University, Shenyang, China
2. Key Laboratory of Intelligent Computing in Medical Image, Ministry of Education, Northeastern University, Shenyang, China
3. Department of Radiology, Shengjing Hospital of China Medical University, Shenyang, China
4. Department of Radiology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
5. Department of Radiology, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
6. Department of Electrical and Computer Engineering, Stevens Institute of Technology, Hoboken, NJ, USA