The application of intraoperative electrophysiological technology and stereotactic anatomy in brain motor area lesions

Abstract

Objective To explore the application of electrophysiological monitoring in anatomical location of cerebral motor area. Methods The literatures from May 1997 to December 2013 in Pubmed and National Knowledge Infrastructure database were searched by using keywords electrophysiological monitoring technology, anatomical localization and cerebral motor area surgery, and the electrophysiological monitoring associated with anatomical orientation of cerebral motor areas was summarized. Results Anatomical landmarks included functional magnetic resonance images and navigation. It employed various methods such as intraoperative somatosensory and motor evoked potentials monitoring, intraoperative cortical and sub-cortical stimulation, awaking anesthesia and the comprehensive exploitation of neuronavigation. Stereotactic anatomy and electrophysiological technology had its advantages and disadvantages. At present, combination use of the two methods is the trend of clinical application. Conclusions In cerebral motor areas, combined of stereotactic anatomy and electrophysiological technology can improve the accuracy of anatomical location. The combined application of two methods can achieve the effects of maximum degree of resection of the tumor and maximize the retention of neural function. Key words: Evoked potentials; Motor cortex; Neuronavigation; Electrophysiological technology