What is amplitude asymmetry on EEG of focal lesions?

Updated: Aug 06, 2019
  • Author: Selim R Benbadis, MD; Chief Editor: Helmi L Lutsep, MD  more...
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In the classification used here, the term asymmetry refers to asymmetry of amplitude and to normal rhythms. By contrast, a focal frequency asymmetry would be classified as focal slow. [1] Finally, readers should keep in mind that amplitude asymmetries should be evaluated on referential montages, since amplitude is highly dependent on interelectrode distances.

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