1. Department of Spinal Surgery Fifth Affiliated Hospital of Sun Yat‐sen University Zhuhai Guangdong China
2. Department of Radiology Fifth Affiliated Hospital of Sun Yat‐sen University Zhuhai Guangdong China
3. Guangdong Provincial Key Laboratory of Medical Image Processing, School of Biomedical Engineering Southern Medical University Guangzhou Guangdong China
4. Faculty of Health Sciences University of Macau Taipa Macau SAR China