1 From the Department of Medical Imaging, University of Arizona College of Medicine, Banner University Medical Center, 1501 N Campbell Ave, PO Box 245067, Tucson, AZ 85724 (L.H.G., D.M.M., R.S.W., H.A., M.S.T.); and Department of Radiology, Medical University Innsbruck, Innsbruck, Austria (A.S.K.).