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Pictorial review: Trigeminal nerve: anatomy and pathology

P Woolfall1, A Coulthard

  • 1Department of Radiology, Royal Victoria Infirmary, Queen Victoria Road, Newcastle-Upon-Tyne NE1 4LP, UK.

The British Journal of Radiology
|June 5, 2001
PubMed

Insights

Magnetic Resonance Imaging (MRI) is the preferred method for diagnosing trigeminal nerve conditions. Specific MRI sequences effectively visualize most pathologies, aiding in treatment planning for improved patient outcomes.

Area of Science:

  • Neurology
  • Radiology
  • Medical Imaging

Background:

  • Trigeminal nerve pathology requires accurate diagnostic imaging.
  • Magnetic Resonance Imaging (MRI) is the primary modality for evaluating the trigeminal nerve and its nucleus.
  • Identifying lesions is crucial for effective management and treatment planning.

Purpose of the Study:

  • To review the utility of MRI in diagnosing trigeminal nerve and nucleus pathologies.
  • To highlight appropriate MRI sequences for visualizing these conditions.
  • To demonstrate the role of MRI in guiding therapeutic interventions.

Main Methods:

  • Review of MRI techniques for trigeminal nerve assessment.
  • Utilization of routine cranial MRI sequences.
  • Inclusion of three-dimensional gradient echo sequences (e.g., fast inflow with steady-state precession - FISP).
  • Consideration of intravenous gadolinium-DTPA enhancement.

Main Results:

  • Most trigeminal nerve and nucleus lesions are recognizable with appropriate MRI sequences.
  • Three-dimensional gradient echo sequences (FISP) are effective in demonstrating pathologies.
  • Gadolinium contrast occasionally offers additional diagnostic value.
  • MRI aids in surgical and medical management planning.

Conclusions:

  • MRI is the imaging modality of choice for suspected trigeminal nerve pathology.
  • Specific MRI protocols, including 3D gradient echo sequences, are sufficient for diagnosis.
  • MRI plays a vital role in planning interventions for trigeminal nerve disorders.

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