1 Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indiana University Hospital, Indianapolis, Indiana. Electronic address: deheitka@iupui.edu.
2 Department of Radiology & Biomedical Imaging, University of California, San Francisco, San Francisco, California.
3 Lubbock Diagnostic Radiology, Lubbock, Texas.
4 Radiology, Inc, Mishawaka, Indiana.
5 Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, Indiana.