In the last few years, increasing effort has been devoted to better define the characteristics of tissue damage occurring outside MRI-visible lesions in patients with multiple sclerosis (MS) and, as a consequence, to improve our understanding of the disease pathobiology and of the mechanisms leading to the accumulation of irreversible disability. This book provides an updated review of the results obtained by leading research groups in this field. The potential clinical applications of what has been shown so far, as well as the areas for future research in the study of normal-appearing...

In multiple sclerosis (MS), conventional magnetic resonance imaging (cMRI) has proved to be a valuable tool to increase diagnostic confidence and for monitoring the efficacy of experimental treatment. However, cMRI has limited specificity and accuracy of cMRI to the most disabling aspects of the MS pathology, known to occur in and outside macroscopic lesions. Modern quantitative MR techniques have the potential to overcome the limitations of cMRI, and their application is changing dramatically our understanding of how MS causes irreversible disability. In detail, there is an increasing...