Ultra-high-field Brain MRI in Multiple Sclerosis

All patients will undergo anatomical brain imaging on a 3T, 7T and 9.4T MRI scanner within the same day at baseline and again 6 months later. An optimized protocol for every separate field strength will be run. Sequences will include at least T1-weighted, T2\*-weighted and a T2 SPACE or FLAIR sequence. No intravenous contrast will be used.