Affiliations

• ¹ Department of Radiology, University of North Carolina, Chapel Hill, North Carolina. Electronic address: bob_dixon@med.unc.edu.
• ² Department of Radiology, University of North Carolina, Chapel Hill, North Carolina.
• ³ Virginia Interventional and Vascular Associates, Fredericksburg, Virginia.
• ⁴ Department of Radiology, University of Texas Medical Branch, Galveston, Texas.
• ⁵ Department of Interventional Radiology, McMaster University, Hamilton, Ontario, Canada.
• ⁶ Center for Devices and Radiological Health, Food and Drug Administration, Silver Spring.
• ⁷ Department of Radiology, Meir Medical Center, Kfar Saba, Israel.
• ⁸ Department of Radiology, Northwestern University, Chicago, Illinois.
• ⁹ Department of Interventional Radiology, Greater Baltimore Medical Center, Baltimore, Maryland.
• ¹⁰ Division of Angiography Interventional Radiology, Brigham and Women's Hospital, Boston, Massachusetts.
• ¹¹ Department of Radiology, Stratton Medical Center, Albany, New York.