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Axis Neuromonitoring Axis Neuromonitoring

Mapping of the Motor Cortex

September 30, 2020



Faisal R. Jahangiri1,2,3, Aksharkumar Dobariya2, Aaron Kruse1, Olga Kalyta1, John D. Moorman1

1Axis Neuromonitoring LLC, Richardson, TX, USA; 2School of Behavioral and Brain Sciences, The University of Texas at Dallas, Richardson, USA, 3Global Innervation LLC, Dallas, TX, USA.


*Corresponding Author: Faisal R. Jahangiri, MD, CNIM, D.ABN, FASNM, FASET. 

Published: Sep 25, 2020.



The resection of brain tumors located within or near the eloquent tissue has a higher risk of postoperative neurological deficits. The primary concerns include loss of sensory and motor functions in the contralateral face, upper and lower extremities, as well as speech deficits. Intraoperative neurophysiological monitoring (IONM) techniques are performed routinely for the identification and preservation of the functional integrity of the eloquent brain areas during neurosurgical procedures. The IONM modalities involve sensory, motor, and language mapping, which helps in the identification of the boundaries of these areas during surgical resection. Cortical motor Mapping (CmM) technique is considered as a gold-standard technique for mapping of the brain. We present the intraoperative CmM technique, including anesthesia recommendations, types of electrodes, as well as stimulation and recording parameters for successful monitoring.

Keywords: Brain tumor, neuro-surgery, motor mapping, cortical mapping, ionm, eeg, neuro-monitoring, electrocorticography


Citation: Jahangiri F R, Dobariya A, Kruse A, et al. (September 25, 2020) Mapping of the Motor Cortex. Cureus 12(9): e10645. doi:10.7759/cureus.10645



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