[1] Univ Texas Med Sch, Dept Diagnost & Intervent Imaging, Houston, TX 77030 USA
[2] Univ Texas Med Sch, Dept Pediat, Houston, TX 77030 USA
[3] Mercy Coll Ohio, Toledo, OH USA
[4] Univ Cincinnati, Blue Ash Coll, Cincinnati, OH USA
[5] Washington Univ, Med Ctr, Mallinckrodt Inst Radiol, Elect Radiol Lab, St Louis, MO 63110 USA
[6] St Louis Childrens Hosp, St Louis, MO 63178 USA
[7] Washington Univ, Sch Med, St Louis, MO USA
[8] Amer Soc Radiol Technologists, Albuquerque, NM USA
[9] Cincinnati Childrens Hosp Med Ctr, Cincinnati, OH 45229 USA
[10] Hosp Sick Children, Toronto, ON M5G 1X8, Canada
[11] US FDA, Ctr Devices & Radiol Hlth, Silver Spring, MD USA
[12] GAMMEX Inc, Middleton, WI USA