Magnetic resonance techniques in multiple sclerosis: the present and the future.

Area of Science:

• Neurology
• Radiology
• Medical Imaging

Background:

• Multiple sclerosis (MS) diagnosis and monitoring rely on conventional magnetic resonance imaging (MRI) for lesion detection.
• Established MRI sequences like dual-echo, FLAIR, and postcontrast T1-weighted are standard for assessing disease burden.
• Advanced quantitative MRI techniques offer higher pathological specificity for MS.

Purpose of the Study:

• To review established and emerging MRI methods for assessing MS disease burden.
• To explore novel imaging modalities and high-field magnets for deeper insights into MS pathobiology.
• To discuss the requirements for integrating advanced MRI techniques into MS research.

Main Methods:

• Conventional MRI sequences (dual-echo, FLAIR, postcontrast T1-weighted).
• Quantitative MRI techniques: Magnetization Transfer (MT-MRI), Diffusion Tensor MRI (DT-MRI), Proton MR Spectroscopy (MRS).
• Emerging modalities assessing iron deposition and perfusion, utilizing high- and ultrahigh-field magnets.

Main Results:

• Conventional MRI effectively detects focal MS lesions and monitors disease course.
• Quantitative MRI methods provide detailed insights into lesion and normal-appearing tissue pathology.
• Newer techniques and advanced magnets are revealing previously neglected pathological features of MS.

Conclusions:

• Established MRI techniques are crucial for routine MS management.
• Emerging MRI methods hold significant potential for advancing MS research and understanding.
• Further validation is needed before widespread adoption of advanced MRI techniques in the MS research community.