[1] Mallinckrodt Inst Radiol, Div Vasc & Intervent Radiol, St Louis, MO 63110 USA
[2] Albany Med Coll, Dept Vasc Radiol, Albany, NY 12208 USA
[3] SUNY Upstate Med Univ, Dept Radiol, Syracuse, NY USA
[4] Thomas Jefferson Univ Hosp, Dept Radiol, Philadelphia, PA 19107 USA
[5] Hosp Univ Penn, Sect Vasc & Intervent Radiol, Dept Radiol, Philadelphia, PA 19104 USA
[6] Childrens Hosp, Dept Radiol, Philadelphia, PA 19104 USA
[7] Reading Hosp, Dept Radiol, Reading, PA USA
[8] Med Ctr, Reading, PA USA
[9] Natl Naval Med Ctr, Dept Intervent Radiol, Bethesda, MD USA
[10] Northwestern Univ, Dept Radiol, Chicago, IL 60611 USA
[11] Radiol Associates Cent Florida, Leesburg, FL USA
[12] St Elizabeth Hosp, Dept Radiol, Tilburg, Netherlands
[13] Hop Lariboisiere, Dept Body & Vasc Imaging, F-75475 Paris, France
[14] Univ Toronto, Univ Hlth Network, Div Vasc & Intervent Radiol, Toronto, ON, Canada
[15] Royal Surrey Cty Hosp, Dept Radiol, Guildford, Surrey, England