1. Neuroradiology Unit, Department of Radiology, Careggi University Hospital, 50134 Florence, Italy
2. Radiodiagnostic Unit N. 2, Department of Experimental and Clinical Biomedical Sciences, University of Florence, 50121 Florence, Italy
3. Radiation Oncology, Oncology Department, Careggi University Hospital, University of Florence, 50121 Florence, Italy
4. Neurosurgery Unit, Department of Neuroscience, Psychology, Pharmacology and Child Health, Careggi University Hospital, University of Florence, 50121 Florence, Italy
5. Neuroradiology Unit, Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Florence, 50121 Florence, Italy