1. School of Medicine and Surgery, University of Cagliari, Cagliari, Italy
2. Stroke Diagnostic and Monitoring Division, AtheroPoint™, United States and Advanced Knowledge Engineering Centre, Global Biomedical Technologies Inc. (GBTI), Roseville, CA, USA
3. Department of Radiology, Azienda Ospedaliero-Universitaria (A.O.U.), Cagliari, Italy