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, Duke University Medical Center, Durham, North Carolina.
3 Department of Radiology, Ronald Reagan UCLA Medical Center, Los Angeles, California.
4 Department of Radiology, St. Elizabeth's Medical Center, Brighton, Massachusetts.
5 Department of Diagnostic and Interventional Imaging, The University of Texas Health Science Center at Houston, Houston, Texas.
6 Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia.
7 Department of Radiology, University of Washington School of Medicine, Seattle, Washington.