[1] Winthrop Univ Hosp, Dept Radiol, Mineola, NY 11501 USA
[2] Yale New Haven Med Ctr, Dept Radiol & Biomed Imaging, 20 York St, New Haven, CT 06510 USA
[3] McMaster Univ, Dept Radiol, Hamilton, ON, Canada
[4] Univ Washington, Med Ctr, Dept Radiol, Seattle, WA 98195 USA
[5] Cleveland Clin, Dept Radiol, Cleveland, OH 44106 USA
[6] SUNY Stony Brook, Dept Radiol, Sch Med, Stony Brook, NY USA
[7] Harvard Med Sch, Brigham & Womens Hosp, Dept Radiol, Boston, MA USA