Present and future of fMRI in multiple sclerosis

Area of Science:

• Neuroimaging
• Neuroscience
• Clinical Neurology

Background:

• Multiple sclerosis (MS) causes functional cortical changes across motor, visual, and cognitive networks.
• fMRI studies show altered regional recruitment, resting-state activity, and connectivity in MS patients compared to healthy individuals.
• Longitudinal fMRI studies indicate these abnormalities evolve with disease progression, even in clinically stable patients.

Purpose of the Study:

• To investigate functional cortical and cervical cord changes using functional MRI (fMRI) in multiple sclerosis (MS) patients.
• To correlate fMRI findings with structural MRI data and disease-related damage.
• To explore the potential of fMRI in assessing therapeutic effects on central nervous system plasticity.

Main Methods:

• Functional MRI (fMRI) was used to assess brain and cervical cord activity in MS phenotypes.
• Studies analyzed motor, visual, cognitive, and sensory-evoked responses.
• Correlations were drawn between fMRI measures, structural MRI, and tissue damage.

Main Results:

• MS patients exhibit altered fMRI patterns in motor, visual, and cognitive networks compared to controls.
• fMRI abnormalities correlate with brain and spinal cord damage, suggesting compensatory recruitment.
• Cervical cord fMRI successfully identified altered functional activation in MS patients.

Conclusions:

• fMRI is a valuable tool for detecting functional changes in MS, reflecting disease burden and compensatory mechanisms.
• Cervical cord fMRI shows promise for assessing sensory pathways in MS.
• Future research should focus on fMRI for disability assessment and monitoring therapeutic interventions in MS.