1. Radiology Department, Interventional Radiology Unit, Kuala Lumpur General Hospital, Kuala Lumpur 50586, Malaysia
2. Department of Neuroscience, Neuroradiological Unit, University of Turin, Azienda Ospedaliera Città della Salute e della Scienza Hospital, 10126 Turin, Italy
3. Department of Neuroscience, Stroke Unit, University of Turin, Azienda Ospedaliera Città della Salute e della Scienza Hospital, 10126 Turin, Italy
4. Department of Surgical Sciences, Radiology Unit, University of Turin, Azienda Ospedaliera Città della Salute e della Scienza Hospital, 10126 Turin, Italy