1. C. H. R. U. Lille , Hôpital Calmette, Lille, France
2. Department of Bioimaging and Radiological Sciences, Catholic University of Rome, Rome, Italy
3. Section of Radiology, Department of Surgery, University Hospital of Parma, Italy.
4. Computational Biomedical Imaging Laboratory, Radiodiagnostic Section, Department of Clinical Physiopathology, University of Florence, Florence, Italy
5. Vascular and Interventional Radiology Unit, Pediatric Hospital Bambino Gesù, Rome, Italy
6. Department of Radiology, Hospital San Maurizio, Bozen, Italy