[1] Natl & Kapodistrian Univ Athens, Sch Med, Res Unit Radiol & Med Imaging, 19 Papadiamantopoulou, Athens 11528, Greece
[2] Natl & Kapodistrian Univ Athens, Attikon Univ Gen Hosp, Dept Radiol 2, Chaidari 12462, Greece
[3] Natl & Kapodistrian Univ Athens, Sch Med, Athens 11527, Greece
[4] Agios Savas Anticanc Hosp, Dept Radiol, Athens 11522, Greece
[5] Natl & Kapodistrian Univ Athens, Attikon Univ Gen Hosp, Sch Med, Dept Neurol 2, Chaidari 12462, Greece
[6] Natl & Kapodistrian Univ Athens, Attikon Univ Hosp, Sch Med, Dept Ophthalmol 2, Chaidari 12462, Greece
[7] Sotiria Gen & Chest Dis Hosp Athens, Dept Imaging & Intervent Radiol, Athens 11527, Greece
[8] Natl & Kapodistrian Univ Athens, Attikon Univ Gen Hosp, Sch Med, Dept Radiol, Chaidari 12462, Greece