Update on multiple sclerosis

Area of Science:

• Neurology
• Radiology
• Neuroimaging

Background:

• Multiple Sclerosis (MS) is a chronic neurological disease characterized by inflammation and demyelination in the central nervous system.
• Understanding the pathological features of MS is crucial for accurate diagnosis and effective management.
• Magnetic Resonance Imaging (MRI) has become an indispensable tool in the study and clinical evaluation of MS.

Purpose of the Study:

• To review the fundamental features of focal lesions and underlying pathology in MS using MRI.
• To discuss diffuse pathology in normal-appearing white and gray matter revealed by conventional and quantitative MRI techniques.
• To explore the role of MRI in diagnosing MS, monitoring subclinical disease, and assessing treatment response.

Main Methods:

• Review of existing literature on MR imaging findings in multiple sclerosis.
• Discussion of conventional and quantitative MRI techniques for detecting focal and diffuse brain pathology.
• Analysis of MR imaging criteria integrated into formal clinical diagnostic criteria for MS.

Main Results:

• Focal lesions and underlying pathologies in MS are characterized by specific MR imaging features.
• Diffuse pathology in normal-appearing white and gray matter can be detected using advanced MRI techniques.
• Axonal-neuronal degeneration may link focal and diffuse pathologies in MS.
• Established MR imaging criteria are now part of formal clinical diagnostic criteria for MS.

Conclusions:

• MRI is essential for characterizing both focal and diffuse pathologies in multiple sclerosis.
• MRI plays a critical role in the diagnostic criteria for MS.
• MRI is valuable for monitoring subclinical disease activity, identifying aggressive disease, and tracking treatment efficacy in MS.