[1] Gen Univ Hosp Patras, Dept Intervent Radiol, Patras, Greece
[2] Democritus Univ Thrace, Univ Hosp Alexandroupolis, Med Phys Dept, Alexandroupolis, Greece
[3] Univ Aegean, Dept Cultural Technol & Commun, Intelligent Syst Lab, Mitilini, Greece
[4] Gen Univ Hosp Patras, Dept Surg, Patras, Greece
[5] Univ Paris Cite, Necker Hosp, Dept Radiol, Paris, France
[6] Westpfalz Klinikum, Dept Cardiothorac & Vasc Surg, Kaiserslautern, Germany