1 Department of Neuroradiology, Hôpital Maison Blanche, CHU Reims, University Reims-Champagne-Ardenne, 45, rue Cognacq-Jay, 51092 Reims cedex, France. Electronic address: [email protected].
2 Department of Neuroradiology, University Hospital of Toulouse, Toulouse, France.
3 Department of Neuroradiology, University Hospital of Nancy, Nancy, France.