1 Department of Medical Imaging and Radiological Sciences, Kaohsiung Medical University, 100 Tz You 1st Rd, Kaohsiung, Taiwan; Department of Ophthalmology, Kaohsiung Medical University, Chung-Ho Memorial Hospital, 100 Tz You 1st Rd, Kaohsiung, Taiwan.
2 Department of Radiology, National Cheng Kung University Hospital, 138 Sheng Li Rd, Tainan 70403, Taiwan.