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Related Experiment Videos

Enhancing patterns in multiple sclerosis: evolution and persistence.

J He1, R I Grossman, Y Ge

  • 1Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia, PA 19104-4283, USA.

AJNR. American Journal of Neuroradiology
|April 6, 2001
PubMed
Summary
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Nodular enhancement is the most common pattern for new multiple sclerosis (MS) lesions, typically resolving within six months. Understanding these enhancement patterns aids in diagnosing MS lesions.

Area of Science:

  • Neurology
  • Radiology
  • Immunology

Background:

  • Contrast enhancement on MRI in multiple sclerosis (MS) indicates blood-brain barrier (BBB) abnormalities.
  • Diagnostic patterns and features of enhanced MS lesions are not well understood.

Purpose of the Study:

  • To evaluate initial enhancement patterns of MS lesions.
  • To assess changes in enhancement patterns over time.
  • To determine the duration of enhancement in MS lesions.

Main Methods:

  • Retrospective analysis of 25 patients with clinically definite MS.
  • Evaluation of sequential changes in contrast-enhanced MRI scans.
  • Classification of enhancing lesions into nodular, ringlike, or other patterns.

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Main Results:

  • Nodular enhancement was the predominant pattern (68%) for 301 new lesions.
  • Ringlike enhancement occurred in 23% of lesions.
  • Most enhancing lesions (93%) resolved within 6 months; 2% persisted longer than 6 months.

Conclusions:

  • Nodular enhancement is the most frequent pattern for new MS lesions.
  • The typical duration of enhancement is less than 6 months.
  • Analyzing MS lesion evolution aids in diagnosis and distinguishing them from other pathologies.