Department of Radiology, Division of Interventional Radiology, University of Pennsylvania Medical Center, Pennsylvania Veterans Affairs Medical Center, Philadelphia, Pennsylvania, USA. maxim.itkin@uphs.upenn.edu.

Department of Radiology, Division of Interventional Radiology, University of Pennsylvania Medical Center, Pennsylvania Veterans Affairs Medical Center, Philadelphia, Pennsylvania, USA. maxim.itkin@uphs.upenn.edu

Cornell Vascular, New York Presbyterian Hospital-Weill Cornell Medical Center, New York, New York.

Department of Radiology, University of Virginia Health System, Charlottesville, Virginia, USA. jfa3h@virginia.edu

Department of Radiology, Mallinckrodt Institute of Radiology, Saint Louis, Missouri, USA.

Mallinckrodt Institute of Radiology, Siteman Cancer Center, Washington University School of Medicine, 510 South Kingshighway Boulevard, Box 8131, St. Louis, MO 63110, USA. brownda@mir.wustl.edu

Department of Interventional Radiology, National Naval Medical Center, Bethesda, Maryland, USA.

Department of Radiology, University of Virginia Health System, Charlottesville, Virginia.

Department of Radiology, Mallinckrodt Institute of Radiology, Saint Louis, Missouri (S.V., D.B.B.); Department of Endovenous Interventions, University of Iowa School of Medicine, Iowa City, Iowa (P.E.T.); Department of Radiology, University of Colorado Health Sciences Center, Denver, Colorado (J.F.C.); Department of Radiology, Lahey Clinic Medical Center, Burlington, Massachusetts (C.J.G.); Department of Interventional Radiology, Rush University Medical Center, Chicago, Illinois (N.H.P.); Department of Radiology, Rush University Medical Center, Chicago, Illinois (H.F.); Department of Interventional Radiology, Johns Hopkins Hospital, Baltimore, Maryland (L.V.H.); Department of Radiology, Beth Israel Deaconess Medical Center, Boston, Massachusetts; Charlotte Radiology, Charlotte, North Carolina (V.P.A.); University of Athens, Athens, Greece (E.N.B.); Department of Radiology, Emory University Hospital, Atlanta, Georgia (L.M.); Department of Radiology, University of Virginia Health System, Charlottesville, Virginia (A.H.M.); Department of Interventional Radiology, Vanderbilt University Hospital, Nashville, Tennessee (S.G.M.); Department of Interventional Radiology, National Naval Medical Center, Bethesda, Maryland (D.L.M.); Department of Radiology, Peterborough Regional Health Center, Omemee, Ontario, Canada (S.F.M.); Cornell Medical Imaging, New York, New York (R.J.M.); Fairfax Radiological Consultants, Fairfax, Virginia (C.D.N.); University of Toronto, Toronto General Hospital, Toronto, Ontario, Canada (D.K.R.); Department of Radiology, Inova Alexandria Hospital, Alexandria, Virginia (K.S.R.); Radiology Associates of Central Florida, Mt. Dora, Florida (M.S.S.); Department of Radiology, Marshfield Clinic, Marshfield, Wisconsin (T.L.S.); Private Practice, Philadelphia, Pennsylvania (R.B.T.); Department of Radiology, North Florida Regional Medical Center, Gainesville, Florida (B.N.W.); Department of Radiology, The Reading Hospital and Medical Center, West Reading, Pennsylvania (D.S.).

Interventional Radiology (D.L.M.), National Naval Medical Center, Bethesda, Maryland.