1. Neurology Department, Centre Hospitalier de Perpignan, Perpignan, France
2. Radiology Department, Centre Hospitalier de Perpignan, Perpignan, France
3. Emergency Department, Centre Hospitalier de Perpignan, Perpignan, France
4. Neuroradiology Department, Hôpital Gui-de-Chauliac, Montpellier, France