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Diffusion Tensor Magnetic Resonance Imaging in the Analysis of Neurodegenerative Diseases
09:33

Diffusion Tensor Magnetic Resonance Imaging in the Analysis of Neurodegenerative Diseases

Published on: July 28, 2013

Neuroimaging in amyotrophic lateral sclerosis.

Sumei Wang1, Elias R Melhem, Harish Poptani

  • 1Division of Neuroradiology, Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. Sumei.Wang@uphs.upenn.edu

Neurotherapeutics : the Journal of the American Society for Experimental Neurotherapeutics
|January 29, 2011
PubMed
Summary

Amyotrophic lateral sclerosis (ALS) diagnosis needs better ways to detect upper motor neuron (UMN) damage. Advanced magnetic resonance imaging (MRI) techniques show promise for identifying UMN dysfunction in ALS patients.

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Area of Science:

  • Neuroscience
  • Neurology
  • Medical Imaging

Background:

  • Amyotrophic lateral sclerosis (ALS) involves progressive degeneration of upper motor neurons (UMN) and lower motor neurons (LMN).
  • Diagnosing UMN involvement, especially early on, is challenging.
  • Current methods like electromyography (EMG) primarily detect LMN dysfunction.

Purpose of the Study:

  • To explore advanced magnetic resonance imaging (MRI) techniques for detecting UMN dysfunction in ALS.
  • To assess the potential of these MRI methods for early diagnosis and monitoring disease progression.
  • To review the role of neuroimaging in understanding ALS pathophysiology.

Main Methods:

  • Overview of advanced MRI techniques: diffusion imaging, perfusion imaging, magnetization transfer imaging, functional MRI (fMRI), and MR spectroscopy.
  • Discussion of how these techniques provide insights into ALS-related pathophysiological processes.
  • Literature review on the application of these neuroimaging modalities in ALS research.

Main Results:

  • Advanced MRI techniques offer objective measures of neurodegeneration.
  • These methods can potentially detect subtle UMN changes not evident with conventional diagnostics.
  • Specific MRI sequences provide detailed information on tissue microstructure and function.

Conclusions:

  • Advanced MRI techniques hold significant potential for early and accurate diagnosis of UMN dysfunction in ALS.
  • Neuroimaging is crucial for monitoring disease progression and evaluating treatment efficacy.
  • Further research is needed to fully integrate these advanced MRI methods into clinical practice for ALS management.