1 From the Departments of Radiology (H.J.L., J.W.K., J.H.H., G.S.K., S.S.S., S.H.H., H.S.L., Y.Y.J.) and Hepato-Pancreato-Biliary Surgery (Y.H.H.), Chonnam National University Hwasun Hospital and Chonnam National University Medical School, 322 Seoyang-ro, Hwasun-eup, Hwasun-gun, Jeollanam-do 58128, Republic of Korea; and Department of Radiology, Chosun University School of Medicine, Gwangju, Republic of Korea (H.J.S.).