1. Department of Neurosurgery, Chung Shan Medical University Hospital; Taichung, Taiwan
2. School of Medicine, Chung Shan Medical University Hospital; Taichung, Taiwan
3. Department of Medical Imaging, Chung Shan Medical University Hospital; Taichung, Taiwan
4. School of Medical Imaging and Radiological Sciences, Chung Shan Medical University Hospital; Taichung, Taiwan