1. From the Department of Radiology, Charité–Universitätsmedizin Berlin, Humboldt-Universität and Freie Universität zu Berlin, Schumannstr 20/21, Berlin 10117, Germany (M.D., M.B.); Berlin Institute of Health, Berlin, Germany (M.D., S.T.); Department of Radiology, St. Vincent’s University Hospital School of Medicine, University College Dublin, Dublin, Ireland (J.D.D.); and Department of Radiology, Beth Israel Deaconess Medical Center, Harvard University, Boston, Mass (H.Y.K.).