[1] Univ Thessaly, Univ Hosp Larissa, Sch Hlth Sci, Dept Med ,Dept Radiol & Med Imaging, Larisa, Greece
[2] Hosp Bremen Mitte Bremen Ost, Dept Diagnost & Intervent Neuroradiol, Bremen, Germany
[3] Evangelismos Gen Hosp, Intervent Radiol Unit, Athens, Greece
[4] Natl & Kapodistrian Univ Athens, Arete Hosp, Sch Med, Dept Radiol 1, Athens, Greece