The 10-20 system in the EEG is one of the main standards use in the exam. It offers a series of rules for the positioning UNDERSTAND THIS PATTERN of the electroencephalogram electrodes , in order to guarantee the quality of the collect records. In this way, the graphs faithfully portray the brain’s electrical activity . The 10-20 system is the subject of this article. Where I explain more about its importance and how to use it. In the end, you will even know how to benefit from online reports via neurological telemedicine . What is the 10-20 system? The 10-20 EEG System is an electrode placement standard recommend by national and international medical authorities. Basically, this type of EEG setup divides the head into two hemispheres so that the electrodes are the same distance apart. Hence the name of the system.
Clinical Neurophysiology (SBNC) is as follows
Each electrode has a standard denomination compose of a letter and a number, the letter being base on the brain region covered by this electrode and the number indicating its lateralization. In this way, we have for frontal, C for central, P for parietal, T for temporal and O for occipital”. The SBNC also Austria Phone Numbers List states that the entire brain surface must be cover and that the positioning UNDERSTAND THIS PATTERN of the electrodes must be based on specific measurements made from skull reference points, proportional to its size and shape. To differentiate the equivalent areas of the cerebral hemispheres, even numbers are used for the right hemisphere, and odd numbers for the left. The midline serves as the 0 point and is therefore named.
Use at least 16 channels simultaneously
Use all 21 electrodes of the 10-20 system. The electrode connections (bipolar) must run in sequential lines. And keep the distances between the electrodes equal. Display previous and left channels before later and DT Leads right channels. Three classes of montages must be represent in each EEG record. bipolar longitudinal, bipolar transverse and referential. In this scheme, the electrodes are arrange in rows of arrange in 5 longitudinal planes and 5 transverse planes. The cross planes are. prefrontal Front coronal (rolandic) Parietal Occipital. The longitudinal planes correspond to. Lower left longitudinal left parasagittal Sagittal or median right parasagittal Bottom right longitudinal. Next, I explain. Why to use the 10-20 system on EEG.