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Multi-component relaxation in relapsing remitting multiple sclerosis: Variability of myelin water fraction estimates of individual lesions
Caroline Köhler1, Hannes Wahl1, Tjalf Ziemssen2, Paul Kuntke1, Jennifer Linn1, and Hagen H. Kitzler1
1Institut und Poliklinik für Diagnostische und Interventionelle Neuroradiologie, University Hospital Carl Gustav Carus, Dresden, Germany, 2Neurology, University Hospital Carl Gustav Carus, Dresden, Germany
A significant reduction (6%-70%) and heterogeneity of myelin water fraction in MS lesions was detected within patients and between patients. Patients with a higher degree of disability of EDSS ≥ 4 significantly have lower MWF values than patients with EDSS < 2.5 
Fig. 2 Group differences in median MWF in lesions for patients with low (EDSS < 2.5) and moderate disability (EDSS > 4)
Fig. 1 Distribution of MWF of individual lesions for n=112 RRMS patients with varying MWF loss, reflecting different stages of demyelination