1. From the Drexel University College of Medicine, Philadelphia, Pa (S.M.S.); University of Maryland Medical Intelligent Imaging (UM2ii) Center, Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, 670 W Baltimore St, 1st Fl, Room 1172, Baltimore, MD 21201 (S.M.S., K.P., E.B., V.S.P., P.H.Y.); and Malone Center for Engineering in Healthcare, Johns Hopkins University, Baltimore, Md (P.H.Y.).