1. From the Departments of Radiology (C.E., P.M., F.F., J.K.D.), Medical Imaging and Radiation Sciences (M.E.M.), and Medicine (M.P.S., D.F., P.M., I.S.C., N.R., P.W., A.V., M.D.), Thomas Jefferson University, Philadelphia, Pa; Clarius Mobile Health, Vancouver, Canada (K.D.); and Department of Radiology, Mayo Clinic, Rochester, Minn (J.K.D).