1 From the Department of Medical Imaging, Soroka Medical Center, Rager Blvd, PO Box 151, Be'er Sheva, Israel 84101 (G.B.A.); Faculty of Health Sciences, Ben-Gurion University of the Negev, Be'er Sheva, Israel (G.B.A.); and Department of Radiology, Hebrew University School of Medicine, Hadassah Medical Center, Jerusalem, Israel (J.S.).