1 Department of Diagnostic and Interventional Imaging, University of Texas Health Science Center, Houston, Texas.
2 Division of Interventional Radiology, Department of Radiology, University of Texas Southwestern Medical Center, Dallas, Texas.
3 Division of Interventional Radiology, Massachusetts General Hospital, Boston, Massachusetts.
4 Department of Radiology, Beth Israel Medical Center, New York, New York.
5 Department of Medical Imaging, University of Toronto, Mt. Sinai Hospital & University Health Network, Toronto, Ontario, Canada.
6 Department of Radiology, Royal Victoria Hospital, Barrie, Ontario, Canada.
7 Department of Radiology and Imaging Sciences, Division of Interventional Radiology and Image-Guided Medicine, Emory University, Atlanta, Georgia.
8 Department of Diagnostic Imaging, McMaster University, Hamilton, Ontario, Canada.
9 Department of Radiology, Stratton Medical Center, Albany, New York.
10 Department of Radiology and Imaging Sciences, Division of Interventional Radiology and Image-Guided Medicine, Emory University, Atlanta, Georgia. Electronic address: dariushnia1@yahoo.com.