1 Division of Vascular and Interventional Radiology, Department of Radiology, Stanford University Medical Center, 300 Pasteur Dr., H-3651, Stanford, CA 94305-5642. Electronic address: wkuo@stanford.edu.
2 Division of Vascular and Interventional Radiology, Department of Radiology, New York University Langone School of Medicine, New York, New York.
3 Division of Interventional Radiology, Beth Israel Deaconess Medical Center, Boston, Massachusetts.
4 Department of Radiology, Division of Interventional Radiology and Image-Guided Medicine, Emory University School of Medicine, Atlanta, Georgia.
5 Department of Interventional Radiology, Royal Victoria Hospital, Barrie, Ontario, Canada.
6 Division of Vascular and Interventional Radiology, Mount Sinai Health System, New York, New York.
7 Division of Vascular and Interventional Radiology, Department of Radiology and Medical Imaging, University of Virginia School of Medicine, Charlottesville, Virginia.
8 Department of Radiology, Stratton Medical Center, Albany, New York.
9 Departments of Radiology and Neurosurgery, University of Michigan Hospitals, Ann Arbor, Michigan.