[1] Univ Hosp Tours, Dept Radiol, F-37000 Tours, France
[2] Necker Enfants Malades Hosp, Dept Pediat Radiol, F-75015 Paris, France
[3] Beaujon Hosp, Univ Hosp Paris Nord Val de Seine, Dept Radiol, Hauts de Seine, 100 Blvd Gen Leclerc, F-92110 Clichy, France
[4] Univ Paris Diderot, Sorbonne Paris Cite, F-75013 Paris, France
[5] INSERM, U1149, CRB3, F-75018 Paris, France