In children and adolescents with either multiple sclerosis or clinically isolated syndrome an MRI with special DTI-sequences of the brain is performed at timepoint of first manifestation of disease and every 6 months at 3 Tesla MRI according to a specific investigation protocol.
Besides MRI-DTI several clinical data are recorded every 6 months:
1. expanded disability status scale (EDSS)
2. disease activity/ relapse rate
3. lesion load (number of T2-lesions)
4. brain atrophy
5. visual and somatosensoric evoked potentials (VEP, SSEP)
6. neuropsychological examination
Furthermore a complete neurological examination is done every 6 months and particular medication of each patient is recorded in a specific investigator form (case report form, CRF)