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The value of preoperative functional cortical mapping using navigated TMS.

Jean-Pascal Lefaucheur1, Thomas Picht2

  • 1EA 4391, faculté de médecine de Créteil, université Paris Est Créteil, 94000 Créteil, France; Service de physiologie-explorations fonctionnelles, hôpital Henri-Mondor, Assistance publique-Hôpitaux de Paris, 94010 Créteil, France.

Neurophysiologie Clinique = Clinical Neurophysiology
|May 28, 2016
PubMed
Summary

Navigated transcranial magnetic stimulation (nTMS) accurately maps brain functions before surgery. This technique helps neurosurgeons preserve critical motor and language abilities during tumor or epilepsy surgery, reducing the risk of disabling deficits.

Keywords:
Aire de BrocaBrain tumourBroca's areaCortex moteurLangageLanguageMotor cortexNeurochirurgieNeuronavigationNeurosurgeryParoleSpeechStimulation magnétique transcrânienneTranscranial magnetic stimulationTumeur cérébrale

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Area of Science:

  • Neurosurgery
  • Neurology
  • Neuroimaging

Background:

  • Surgical resection of brain tumors in eloquent areas carries a high risk of postoperative neurological deficits.
  • Accurate preoperative planning is crucial for minimizing functional impairment during neurosurgery.
  • Navigated transcranial magnetic stimulation (nTMS) has emerged as a valuable tool for preoperative brain mapping.

Purpose of the Study:

  • To present the principles and evidence supporting the use of nTMS in clinical neurosurgery.
  • To demonstrate the value of nTMS for preserving motor and language functions during brain tumor and epilepsy surgery.

Main Methods:

  • Review of literature on the anatomical and functional accuracy of nTMS.
  • Principles of nTMS mapping for neurosurgical planning.
  • Application of nTMS in preserving eloquent brain areas.

Main Results:

  • High level of evidence supports the accuracy of nTMS for brain mapping.
  • nTMS enables precise localization of critical motor and language areas.
  • nTMS-guided surgery can reduce the incidence of postoperative functional deficits.

Conclusions:

  • Navigated transcranial magnetic stimulation (nTMS) is a reliable technique for preoperative functional brain mapping.
  • nTMS plays a vital role in neurosurgical planning, particularly for tumors in eloquent regions.
  • Utilizing nTMS can significantly improve functional outcomes by preserving motor and language abilities after brain surgery.