[1] Univ Bordeaux 2, U INSERM 862, F-33076 Bordeaux, France
[2] CHU Bordeaux, Neurol, Bordeaux, France
[3] Univ Bordeaux 2, TRAIL, F-33076 Bordeaux, France
[4] Brigham & Womens Hosp, Neurol Imaging, Boston, MA 02115 USA
[5] Univ Bordeaux 2, F-33076 Bordeaux, France
[6] CHU Bordeaux, Bordeaux, France