[1] Ochsner Clin Fdn, Dept Radiol, New Orleans, LA USA
[2] Univ Queensland Med Sch, Ochsner Clin Fdn, Ochsner Clin Sch, New Orleans, LA USA
[3] Duke Med Phys Grad Program, Pediat Radiol, Durham, NC USA
[4] Univ Kentucky Coll Med, Dept Radiol, Radiol & Med, Lexington, KY USA
[5] Sutter Med Grp, Dept Radiat Oncol, Sacramento, CA USA
[6] Mayo Clin, Dept Radiol, Emerita, Rochester, MN USA
[7] Univ Queensland Med Sch, Ochsner Clin Sch, Dept Radiol, 1514 Jefferson Hwy, New Orleans, LA 70121 USA