1. Department of Radiology, Huashan Hospital, Fudan University, Shanghai, PR China
2. Department of Respiration, Huashan Hospital, Fudan University, Shanghai, PR China
3. Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei, PR China
4. Institute of Functional and Molecular Medical Imaging, Fudan University, Shanghai, PR China
5. Academy for Engineering and Technology, Fudan University, Shanghai, PR China