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Transcranial Doppler in neurosurgery

K F Lindegaard1, W Sorteberg, H Nornes

  • 1Department of Neurosurgery, Rikshospitalet, National Hospital, University of Oslo, Norway.

Advances and Technical Standards in Neurosurgery
|January 1, 1993
PubMed
Summary

Transcranial Doppler (TCD) ultrasound is a valuable tool in neurosurgery for assessing cerebral blood flow and velocity. It aids in managing conditions like head injuries and subarachnoid hemorrhage by monitoring for vasospasm.

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Area of Science:

  • Neurosurgery
  • Neurology
  • Medical Imaging

Background:

  • Transcranial Doppler (TCD) ultrasound is increasingly utilized in neurosurgical practice.
  • Understanding Doppler principles and recording techniques is crucial for accurate assessment.
  • Cerebral blood flow dynamics and their relationship with intracranial pressure are key considerations.

Purpose of the Study:

  • To provide a comprehensive overview of TCD applications in neurosurgery.
  • To detail the principles, techniques, and interpretation of TCD recordings.
  • To highlight TCD's role in managing specific neurological conditions.

Main Methods:

  • Description of Doppler insonation principles and activation techniques.
  • Discussion of blood flow velocity, pharmacological interactions, and normal value establishment.
  • Explanation of indices like the pulsatility index and cerebral vascular reactivity measurements.

Main Results:

  • TCD provides insights into cerebral blood flow and velocity.
  • It aids in assessing cerebral perfusion pressure, particularly in head injury.
  • TCD is effective in monitoring vasospasm following subarachnoid hemorrhage.

Conclusions:

  • Transcranial Doppler is an essential non-invasive tool in neurosurgical management.
  • Its routine use is highly beneficial for detecting and monitoring vasospasm.
  • TCD enhances the assessment and care of patients with critical neurological conditions.

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