1. Department of Medical Surgical Sciences and Advanced Technologies - Radiology I Unit, University Hospital “Policlinico-Vittorio Emanuele”, Catania, Italy
2. Department of Diagnostic and Interventional Radiology, Garibaldi Centro Hospital, Catania, Italy
3. Department of Diagnostic and Interventional Radiology, Azienda Ospedaliera per L’Emergenza “Cannizzaro”, Catania, Italy