1. Key Laboratory of Spectral Imaging Technology CAS, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710119, China
2. Department of Radiology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, China
3. Department of Computed Tomography and Magnetic Resonance, Children’s Hospital of Hebei Province, Shijiazhuang 050031, China
4. BeiJing Hi-Tech Institute, Beijing 00085, China
5. Department of Biomedical Engineering, The Key Laboratory of Biomedical Information Engineering of The Ministry of Education, School of Life Science and Technology, Xi’an Jiaotong University, Xi’an 710061, China