The last three decades have seen significant advances in structural neuroimaging techniques such as computerized tomography and magnetic resonance imaging. These seem to have surpassed EEG as modalities for the identification of focal CNS lesions. Reported here is the case of a patient with a temporal lobe lesion not evident with magnetic resonance imaging or single photon emission computerized tomography but detected by EEG and positron emission tomography. EEG, particularly quantitative EEG, remains a valuable tool for the demonstration of the degree of dysfunctional changes associated with a cerebral lesion.
JasperH.Report of committee on methods of clinical exam in EEG. Electroencephalogr Clin Neurophysiol1958;10:370–375.
2.
NiedermeyerE.Historical perspectives. In: NiedermeyerEda SilvaLopes F, (eds). Electroencephalography. 4th ed.Baltimore: Williams and Wilkins; 1999: 1–14.
3.
GoodinDSAminoffMJ. Electrophysiological differences between subtypes of dementia. Brain1986;109:1103–1113.
4.
RodinE.The clinical use of EEG topography. In: NiedermeyerEda SilvaLopes F, (eds). Electroencephalography. 4th ed.Baltimore: Williams and Wilkins; 1999: 1190–1214.
5.
DuffyFHHughesJRMirandaF. Status of quantitative EEG (QEEG) in clinical practice. Clin Electroencephalogr1994;25(4):VI–XXII.
6.
da SilvaLopes F. A critical review of clinical applications of topographic mapping of brain potentials. J Clin Neurophysiol1990;7:535–551.
