1. Institute of Medicine Chung Shan Medical University TaichungTaiwan
2. Department of Neurosurgery Tri‐service General Hospital National Defense Medical Center TaipeiTaiwan
3. Department of Neurosurgery Taichung Veterans General HospitalTaichung Taiwan
4. School of Medicine Chung Shan Medical UniversityTaichung Taiwan
5. Department of Medical Research Chung Shan Medical University HospitalTaichung Taiwan
6. Department of Radiology Taichung Veterans General Hospital TaichungTaiwan
7. Institute of Biomedical Engineering Yuanpei University HsinchuTaiwan
8. Department of Radiology Taipei Veterans General HospitalTaipei Taiwan
9. Department of Radiology Tri‐service General Hospital National Defense Medical Center Taipei Taiwan