1 From the Department of Radiology and Imaging Sciences, Emory University, Atlanta, Ga (J.P., M.M., C.C.M., P.K.M.); Department of Radiology, Morristown Medical Center, Morristown, NJ (S.C., T.Y.); Department of Radiology, Medical University of South Carolina, Charleston, SC (J.C.C.); and Department of Radiology, Northwestern University Feinberg School of Medicine, Chicago, Ill (F.H.M.).