Document Detail


Basis and use of a true monopolar derivation: the neo-electroencephalography (N.E.E.G.).
MedLine Citation:
PMID:  6733938     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A new method of monopolar recording is presented. This true monopolar derivation is based on a computer-reconstituted signals method: use of a reference electrode obtained by interconnecting two electrodes placed one on either side of the neck to form a common pole; detection by Fourier analysis of the various frequencies from 0 to 16 Hz in 1/4 Hz steps; continuous comparison of phase for each activity per 1/4 Hz between the signal PF left - Reference Neck (RC) and O right - Reference Neck (RC) in order to see whether the reference electrode is active or not; automatic subtraction of the value of the reference electrode from the value of all other reference channels if the reference electrode is active. The technique is available for routine purposes. The results are easy to read and provide more precise data as well as new parameters which could prove useful in current clinical practice. The first electroclinical correlations covered frequency, location of potential gradients and phase relations established for 40 adult normal subjects with a reading identified as normal, and for 60 adult pathological subjects with a reading also identified as normal. Clear differences appeared between these two types of supposedly normal readings.
Authors:
L Sorel; R Ranwez
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Clinical EEG (electroencephalography)     Volume:  15     ISSN:  0009-9155     ISO Abbreviation:  Clin Electroencephalogr     Publication Date:  1984 Apr 
Date Detail:
Created Date:  1984-08-02     Completed Date:  1984-08-02     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0236454     Medline TA:  Clin Electroencephalogr     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  71-82     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Adult
Brain / physiology*,  physiopathology
Electrodes
Electroencephalography / methods*
Humans
Minicomputers
Neck

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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