Imaging in multiple sclerosis: A new spin on lesions

Rayan Bou Fakhredin1, Charbel Saade1, Racha Kerek1

  • 1Diagnostic Radiology Department, American University of Beirut Medical Center, Beirut, Lebanon.

Insights

This review highlights advanced magnetic resonance (MR) imaging techniques for diagnosing and monitoring multiple sclerosis (MS). It details how MR imaging aids in understanding MS lesion characteristics and progression over time.

Area of Science:

  • Neurology
  • Radiology
  • Medical Imaging

Background:

  • Multiple sclerosis (MS) diagnosis relies on pathological correlation, but imaging is crucial due to limited biopsy/autopsy data.
  • Magnetic Resonance Imaging (MRI) has become a leading tool for MS diagnosis and follow-up.
  • Understanding MS lesions in white matter (WM) and normal-appearing white matter (NAWM) is key.

Purpose of the Study:

  • To evaluate current clinical magnetic resonance (MR) techniques for investigating multiple sclerosis (MS).
  • To summarize technical requirements and applications of MR imaging in MS pathology.
  • To enhance understanding of the histopathology and radiological characteristics of MS lesions.

Main Methods:

  • Review of state-of-the-art, clinically available magnetic resonance (MR) techniques.
  • Analysis of T1- and T2-weighted MRI sequences for lesion detection.
  • Correlation of pathological findings with MR imaging characteristics.

Main Results:

  • Advanced MRI techniques improve differentiation between white matter (WM) and grey matter (GM) parenchyma, minimizing misinterpretation of lesions.
  • MRI plays a pivotal role in the diagnosis and longitudinal follow-up of MS.
  • Studies have defined pathological substrates of MS in focal lesions and NAWM.

Conclusions:

  • Current MRI techniques are essential for the diagnosis, classification, and follow-up of multiple sclerosis.
  • Enhanced understanding of MS lesion characteristics through MRI aids in patient management.
  • MRI provides critical diagnostic and prognostic information in the absence of widespread pathological data.

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