Early contrast-enhanced magnetic resonance imaging with fluid-attenuated inversion recovery in multiple sclerosis

Hiroshi Kataoka1, Toshiaki Taoka, Satoshi Ueno

  • 1Department of Neurology, Nara Medical University, Kashihara, Nara, Japan. hk55@naramed-u.ac.jp

Abstract

Insights

Contrast-enhanced fluid-attenuated inversion recovery (FLAIR) MRI may help detect early multiple sclerosis (MS) plaques. This technique shows higher intensity for periventricular and juxtacortical MS lesions compared to other MRI sequences.

Area of Science:

  • Neurology
  • Radiology
  • Neuroimaging

Background:

  • Contrast-enhanced fluid-attenuated inversion recovery (FLAIR) magnetic resonance imaging (MRI) is effective for detecting meningeal lesions.
  • Its utility in multiple sclerosis (MS) diagnosis remains uncertain.

Purpose of the Study:

  • To evaluate the usefulness of contrast-enhanced FLAIR MRI in patients with MS.

Main Methods:

  • Prospective study of 6 patients with clinically definite MS.
  • Brain MRI including contrast-enhanced FLAIR sequences with gadolinium contrast administration.

Main Results:

  • Three enhancing MS plaques in periventricular/juxtacortical areas showed increased intensity on contrast FLAIR.
  • Eight enhancing plaques in deep white matter/infratentorial areas did not show increased signals on contrast FLAIR.

Conclusions:

  • Early contrast-enhanced FLAIR MRI may aid in detecting MS plaques.
  • The technique is particularly useful for lesions in periventricular and juxtacortical regions.

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