[1] ASST Ovest Milanese, Pediat Unit, Milan, Italy
[2] Univ Utah, Dept Radiol, Salt Lake City, UT USA
[3] Duke Univ, Med Ctr, Dept Radiol, Durham, NC USA
[4] Massachusetts Gen Hosp, Dept NeuroIntervent Radiol, Boston, MA USA
[5] Johns Hopkins Univ Hosp, Dept Radiol, Baltimore, MD USA
[6] Yale Univ, Sch Med, Dept Radiol & Biomed Imaging, New Haven, CT USA
[7] Yale Univ, Dept Neurosurg, Sch Med, New Haven, CT USA
[8] Univ Paris Cite, F-75006 Paris, France
[9] Emory Sch Med, Dept Neuroradiol, Atlanta, GA USA
[10] Ist Oncol Mediterraneo IOM, Minimal Invas Spine Dept Neurosurg, Viagrande, Italy
[11] Neuroradiol & Pain Solut Oklahoma, Oklahoma City, OK USA
[12] Yale Sch Med, Dept Radiol, New Haven, CT USA
[13] Univ Hosp Antwerp, Dept Radiol, Antwerp, Belgium
[14] Gen Hosp VITAZ, Dept Med & Mol Imaging, St Niklaas, Belgium
[15] Antwerp Univ Hosp, Gen Hosp Sint Maarten Mechelen, Dept Radiol, Edegem, Belgium
[16] Katholieke Univ Leuven, Antwerp Ghent Univ, Fac Med, Fac Med & Hlth Sci, Leuven, Belgium
[17] ASST Ovest Milanese, Neuroimaging Unit, I-20025 Milan, Italy