1 Department of Medical Imaging, China Medical University Hospital, Taichung, Taiwan. No. 2, Yude Rd., North Dist., Taichung City 404332, Taiwan (R.O.C.).
2 Department of Radiology, School of Medicine, China Medical University, Taichung, Taiwan. No. 2, Yude Rd., North Dist., Taichung City 404332, Taiwan (R.O.C.).