1. From the Department of Radiology, Harbin Medical University Cancer Hospital, Harbin, China (Q.S., P.L.); and Department of Radiology, Icahn School of Medicine at Mount Sinai, 1 Gustave Levy Pl, New York, NY 10029 (Q.S., P.L., J.Z., R.Y., Y.Z., D.F.Y., C.I.H.).