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Correlation between brain MRI lesion volume and disability in patients with multiple sclerosis
S Mammi1, M Filippi, V Martinelli
1Department of Neurology, Scientific Institute Ospedale S. Raffaele, University of Milan, Italy.
Acta Neurologica Scandinavica
|August 1, 1996
Summary
This study found a moderate correlation between lesion volume on MRI scans and disability scores in multiple sclerosis (MS) patients. The relationship was stronger in relapsing-remitting and secondary progressive MS subtypes.
Area of Science:
- Neurology
- Radiology
- Clinical Medicine
Background:
- Multiple sclerosis (MS) is a chronic neurological disease characterized by demyelination and axonal damage.
- Magnetic resonance imaging (MRI) is crucial for visualizing MS lesions.
- Clinical disability in MS is often assessed using the Expanded Disability Status Scale (EDSS).
Purpose of the Study:
- To investigate the relationship between lesion volume on MRI and clinical disability (EDSS) in a large cohort of MS patients.
- To explore potential differences in this relationship across various MS subtypes.
Main Methods:
- Retrospective analysis of MRI scans and clinical data from 130 MS patients.
- Quantification of total lesion load from MRI scans.
- Correlation analysis between lesion volume and EDSS scores.
Main Results:
- A significant, albeit moderate, correlation (r = 0.3) was observed between total lesion load and EDSS in the entire MS cohort.
- The correlation strengthened (r = 0.5) when analyzing only patients with relapsing-remitting MS (RRMS) and secondary progressive MS (SPMS).
Conclusions:
- A correlation exists between MRI-measured lesion volume and clinical disability in MS.
- The strength of this correlation varies depending on the MS disease course, being more pronounced in RRMS and SPMS.