[1] Leeds Teaching Hosp Trust, Leeds Gen Infirm, Dept Radiol, Clarindon Wing,B Floor, Leeds LS1 3EX, W Yorkshire, England
[2] Great Ormond St Hosp Children NHS Fdn Trust, London, England
[3] UCL Great Ormond St Inst Child Hlth, London, England
[4] NIHR Great Ormond St Hosp, Biomed Res Ctr, London, England
[5] Univ Hosp KU Leuven, Dept Radiol, Leuven, Belgium
[6] Hannover Med Sch, Dept Paediat Radiol, Hannover, Germany
[7] Monash Hlth Imaging, Clayton, Vic, Australia
[8] Monash Univ, Sch Clin Sci, Dept Imaging, Clayton, Vic, Australia
[9] Birmingham Womens & Childrens Hosp NHS Fdn Trust, Radiol Dept, Birmingham, W Midlands, England
[10] Radboud Univ Nijmegen Med Ctr, Dept Med Imaging, Nijmegen, Netherlands
[11] Univ Ottawa, Childrens Hosp Eastern Ontario, Dept Med Imaging, Ottawa, ON, Canada
[12] Danube Hosp, Dept Radiol, Vienna, Austria
[13] Auckland City Hosp, Natl Womens Hlth & Starship Childrens Hosp, Radiol Dept, Auckland, New Zealand
[14] Royal Childrens Hosp, Dept Med Imaging, Melbourne, Vic, Australia
[15] Univ Hosp Leicester NHS Trust, Dept Imaging, Leicester, Leics, England
[16] Childrens Hosp Wilhelmstift gGmbH, Dept Radiol, Hamburg, Germany
[17] Womens & Childrens Hosp, Dept Med Imaging, Adelaide, SA, Australia
[18] Univ Adelaide, Fac Hlth & Med Sci, South Adelaide, SA, Australia
[19] Univ Sheffield, Sheffield, S Yorkshire, England
[20] Sheffield Teaching Hosp Fdn Trust, Sheffield, S Yorkshire, England
[21] Amsterdam UMC, Dept Radiol & Nucl Med, Amsterdam, Netherlands