1 Department of Radiology, Interventional Radiology Unit, E.O. Galliera Hospital, Mura delle Cappuccine, Genova, Italy.
2 Department of Radiology and Interventional Radiology, IRCCS San Martino Policlinic University Hospital, Largo Rosanna Benzi, Genova, Italy.
3 Department of Diagnostic Radiology, I.R.C.C.S. Cà Granda Foundation, Maggiore Policlinico Hospital, Via Francesco Sforza, Milano, Italy.
4 Department of Diagnostic and Therapeutic Advanced Technology, Diagnostic and Interventional Radiology Unit, Azienda Socio Sanitaria Territoriale Santi Paolo and Carlo Hospital, Via A di Rudinì, Milano, Italy.