1. Department of Biomedical Engineering, I-Shou University, Kaohsiung City, Taiwan, ROC
2. Department of Radiology, Jhong Jheng Orthopedic Hospital, Kaohsiung City, Taiwan, ROC
3. Department of Medical Imaging and Radiological Sciences, College of Health Sciences, Kaohsiung Medical University, Kaohsiung City, Taiwan, ROC
4. Department of Radiology, Kaohsiung Veterans General Hospital, Kaohsiung City, Taiwan, ROC