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Related Experiment Video

Updated: Jun 17, 2026

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

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Published on: July 28, 2013

Diffusion tensor imaging in hypertrophic olivary degeneration.

R Shah1, J Markert, A K Bag

  • 1Department of Diagnostic Radiology, University of Alabama, 619 19th Street South, Birmingham, AL 35249-6830, USA. ritushah@uabmc.edu

AJNR. American Journal of Neuroradiology
|December 19, 2009
PubMed
Summary

This study presents diffusion tensor imaging (DTI) and fiber tractography results in a patient with hypertrophic olivary degeneration (HOD). Findings support HOD diagnosis by showing reduced volume in a key brain pathway.

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Area of Science:

  • Neuroimaging
  • Neurology
  • Diffusion Tensor Imaging

Background:

  • Hypertrophic olivary degeneration (HOD) is a rare neurological condition.
  • It typically results from lesions in the brainstem or cerebellum.
  • Clinical presentation can include gait and visual disturbances.

Observation:

  • A 51-year-old male presented with abnormal gait and visual difficulties.
  • Magnetic resonance imaging (MRI) revealed an enlarged right medullary olive.
  • A vascular lesion was identified in the right pontine tegmentum.

Findings:

  • Diffusion tensor imaging (DTI) and fiber tractography were utilized.
  • Analysis demonstrated a decreased volume of the right central tegmental tract.
  • These DTI findings support the diagnosis of hypertrophic olivary degeneration.

Implications:

  • DTI and fiber tractography are valuable tools for diagnosing HOD.
  • Understanding tractography changes aids in characterizing the extent of HOD.
  • This case highlights the utility of advanced neuroimaging in rare neurological disorders.