1. From the Department of Radiology (E.S.B., C.M.S., J.R.C., E.M.), Department of Population Health Sciences and Carbone Cancer Center (A.T., J.M.H.), Department of Family Medicine (S.B.S.), and Department of Surgery (L.G.W.), University of Wisconsin-Madison School of Medicine and Public Health, E3/311 Clinical Science Center, 600 Highland Ave, Madison, WI 53792-3252; and Department of Industrial & Systems Engineering, University of Wisconsin-Madison College of Engineering, Madison, Wis (O.A.).