1. Department of Radiology Xi'an People's Hospital (Xi'an Fourth Hospital) Xi'an China
2. The Key Laboratory of Biomedical Information Engineering, Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology Xi'an Jiaotong University Xi'an China
3. School of Medical Technology Shaanxi University of Chinese Medicine Xianyang China
4. Department of Radiology Xijing Hospital Fourth Military Medical University Xi'an China
5. Department of Neurology Xi'an People's Hospital Xi'an Fourth Hospital Xi'an China