The role of intracranial electrode EEG

What is the role of intracranial electrode EEG? The ordinary routine EEG is different, so the effect will be different, can not be generalized. Here, for a detailed introduction to the role of intracranial electrode eeg.

The role of intracranial electrode EEG

Intracranial electrode is a special material of multi contact electrode, the biggest advantage is that it can directly record the electrical activity of the cerebral cortex, and can be implanted in the short term. Intracranial electrodes can be divided into deep electrode, subdural strip electrode and grid electrode. Application of intracranial electrode recording of cortical EEG or deep EEG can maximally eliminate the influence of scalp, skull and dura mater structure for recording the electrical activity of the brain; and the electrical activity of the brain to the surrounding or distant conduction spreading effect on judgment seizure origin. When the epilepsy focus is located near the important function areas such as movement and language, the intracranial electrodes can be used to map the cortical electrical stimulation, and the precise location of the positioning function area can be used. But the surface area of the cerebral cortex, sulci and gyri, in most cases, it is difficult to reach the "ideal, fully covering the surface of the cortex, especially in terms of China's current medical conditions, only limited intracranial electrode buried under the doubtful and most valuable region, the requirements of the surgery very high. Observing and thinking meticulous and comprehensive analysis of the buried electrode in source scheme on previous location data. However, it is worth to remind the point is: invasive recording can only cover a small part of the cortex, there may be misleading.