Chard, D.T.; (2007) Magnetic resonance imaging in relapsing-remitting multiple sclerosis. Doctoral thesis , University of London.

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Abstract

The work presented in this thesis employed magnetic resonance imaging (MRI) techniques to determine the volume and metabolite profile of brain grey matter (GM) and white matter (WM) in people with clinically early relapsing-remitting multiple sclerosis (MS). Cross-sectional MRI and clinical data was obtained from 27 subjects with relapsing-remitting MS within 3 years of first symptom onset, and compared with MRI data from 29 normal control subjects. Subsets of these groups also provided longitudinal data over 18 months for volumetric analysis. The principal observations were that: GM and WM atrophy may be observed early in the clinical course of the disease: WM atrophy was more apparent at baseline, but over the period of follow-up GM atrophy occurred more rapidly than that of WM: changes in metabolite concentrations were found in GM and WM suggesting neuronal and axonal damage, and WM glial activation and or proliferation: WM lesion loads explained a fraction of GM and WM atrophy and metabolite variability: clinical outcome related more closely to tissue metabolite changes (GM glutamate and glutamine, and normal-appearing WM inositol) than atrophy at this stage of the disease.

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