[1] Great Ormond St Hosp Sick Children, Dept Radiol, London, England
[2] NIHR UCL Great Ormond St Inst Child Hlth, Biomed Res Ctr, London, England
[3] Univ Amsterdam, Dept Radiol, Emma Childrens Hosp, Amsterdam UMC, Amsterdam, Netherlands
[4] IRCCS Ist Giannina Gaslini, Serv Radiol, Genoa, Italy
[5] Hosp Goethe Univ, Dept Paediat Neurol, Frankfurt, Germany
[6] Univ Leipzig, Dept Paediat Radiol, Leipzig, Germany
[7] Haukeland Hosp, Dept Radiol, N-5020 Bergen, Norway
[8] Univ Bergen, Dept Clin Med, Bergen, Norway