[1] NINDS, Translat Neuroradiol Sect, NIH, Bldg 36,Rm 4D04, Bethesda, MD 20892 USA
[2] Siemens Healthcare Switzerland, Adv Clin Imaging Technol Grp, Lausanne, Switzerland
[3] CHU Vaudois, Dept Radiol, Lausanne, Switzerland
[4] Ecole Polytech Fed Lausanne, LTS5, Lausanne, Switzerland
[5] Johns Hopkins Univ, Neurol, Baltimore, MD USA
[6] NINDS, Neuroimmunol Clin, NIH, Bldg 36,Rm 4D04, Bethesda, MD 20892 USA