AI Article Synopsis
- EEG has been a trusted diagnostic tool for over 85 years, thanks to its reliability, low cost, and ability to analyze brain activity, especially with advancements in digital technology expanding its applications.
- Despite new discoveries, fundamental neurophysiology remains vital in using EEG for diagnosing neurological events, classifying seizures, and assessing conditions even when other imaging methods appear normal.
- Innovations like high-density EEG and quantitative EEG are enhancing the precision of epilepsy surgeries and deepening our understanding of brain functions.
Article Abstract
After more than 85 years of development and use in clinical practice, the electroencephalogram (EEG) remains a dependable, inexpensive, and useful diagnostic tool for the investigation of the electrophysiologic activity of the brain. The advent of digital technology has led to greater sophistication and multiple software applications to extend the utility of EEG beyond the confines of the laboratory. Despite the discovery of new waveforms, basic neurophysiologic principles remain essential to the clinical care of patients. Patterns in the interictal EEG make it possible to clarify the differential diagnosis of paroxysmal neurological events, classify seizure type and epilepsy syndromes, and characterize and quantify seizures when ictal recordings are obtained. EEG can also demonstrate cerebral dysfunction when structural imaging is normal to detect focal or lateralized abnormalities in patients with encephalopathy. High-density EEG with electrical source imaging has improved localization in candidates for epilepsy surgery. Quantitative EEG and broadband EEG are advancing our understanding of the functional processes of the brain itself.
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| http://dx.doi.org/10.1016/B978-0-444-64032-1.00007-2 | DOI Listing |
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