Intraoperative brain mapping techniques in neuro-oncology

Area of Science:

• Neurosurgery
• Neuro-oncology
• Neurophysiology

Background:

• Intraoperative brain mapping is crucial in neuro-oncology.
• It aims to maximize tumor resection and seizure control while minimizing surgical risks.
• Accurate localization of eloquent areas and critical pathways is essential.

Purpose of the Study:

• To detail the application of intraoperative brain mapping techniques in neuro-oncology.
• To highlight the role of direct stimulation and electrocorticography in surgical planning and execution.
• To emphasize the benefits for tumor resection extent and seizure control.

Main Methods:

• Direct stimulation mapping of the cortex and subcortical motor pathways.
• Localization of the rolandic cortex, dominant language areas, and motor tracts.
• Electrocorticography for identifying epileptogenic zones distinct from neoplastic tissue.

Main Results:

• Direct stimulation effectively maps critical cortical and subcortical structures.
• Electrocorticography identifies seizure foci for targeted resection.
• Combined approaches enhance the precision of tumor resection and epilepsy surgery.

Conclusions:

• Intraoperative brain mapping is vital for optimizing neuro-oncological surgery.
• It enables maximal safe tumor resection and effective seizure control.
• Integration of mapping techniques improves functional outcomes and reduces morbidity.