1. From the Department of Radiology, St Vincent’s University Hospital, Dublin, Ireland (J.D.D.); School of Medicine, University College Dublin, Dublin, Ireland (J.D.D.); and Department of Radiology, Charité-Universitätsmedizin Berlin, Humboldt-Universität and Freie Universität zu Berlin, Schumannstr 20/21, Berlin 10117, Germany (M.B.).