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01-11-2006 | ORIGINAL COMMUNICATION

Localization of grey matter atrophy in early RRMS

A longitudinal study

Authors: Bertrand Audoin, MD, PhD, Gerard R. Davies, MD, PhD, Leonara Finisku, MD, Declan T. Chard, MD, PhD, Alan J. Thompson, MD, PhD, Prof. David H. Miller, MD, PhD

Published in: Journal of Neurology | Issue 11/2006

Abstract

Previous MR studies have established that grey matter (GM) atrophy occurs in multiple sclerosis (MS) from clinical onset. However, it is uncertain whether early GM atrophy is global or has certain local predilections: using Voxel-Based Morphometry this study aimed to address this question.

Twenty-one patients with early RRMS (mean age 36 years, mean disease duration from symptom onset 25.8 months) and 10 healthy control subjects (mean age 37 years) were studied. T₁-weighted three-dimensional MRI images were acquired at baseline and two year follow-up, and analysed with statistical parametric mapping software (SPM2). Two-sample t-tests (p < 0.05 corrected for multiple comparisons at cluster level) were used to compare GM maps from all patients and controls on a voxel-by-voxel basis. At baseline, no GM region appears significantly atrophic in MS subjects compared with controls. However, during the follow-up period significantly greater atrophy occurred in both thalami and the right lateral prefrontal cortex of MS patients when compared with controls. By year two, cross-sectional group comparison revealed GM atrophy in the thalami of MS patients relative to controls. The rate of thalamic atrophy in MS subjects was correlated with changes in EDSS during the follow-up period.

This study suggests that early in the clinical course of RRMS, the thalamic atrophy is more consistently apparent than regional cortical atrophy.

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Title: Localization of grey matter atrophy in early RRMS
A longitudinal study
Authors: Bertrand Audoin, MD, PhD
Gerard R. Davies, MD, PhD
Leonara Finisku, MD
Declan T. Chard, MD, PhD
Alan J. Thompson, MD, PhD
Prof. David H. Miller, MD, PhD
Publication date: 01-11-2006
Publisher: Steinkopff-Verlag
Published in: Journal of Neurology / Issue 11/2006
Print ISSN: 0340-5354
Electronic ISSN: 1432-1459
DOI: https://doi.org/10.1007/s00415-006-0264-2

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Localization of grey matter atrophy in early RRMS

A longitudinal study

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