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Electroencephalography

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Abstract

The electroencephalogram (EEG) is a graphic display of the spontaneous electrical activity of the cerebral cortex. The EEG represents the output of a differential amplifier whose inputs are two distinct recording locations from the scalp. Continuous EEG recordings are used clinically to diagnose brain pathology, specifically seizures. Intraoperatively, EEG is used to monitor cerebral perfusion and depth of anesthesia. Cortical SSEPs, discussed in another chapter, are brief averaged EEG epochs recorded following peripheral stimulation.

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References

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Review Questions

Review Questions

  1. 1.

    What is burst suppression and how do you determine the adequacy of burst suppression for cerebral protection?

  2. 2.

    When should baseline intraoperative EEG be recorded? Why?

  3. 3.

    What are important considerations when selecting filters for EEG recording?

  4. 4.

    What is a dipole? Describe the importance of this concept in EEG recording.

  5. 5.

    What are the advantages and disadvantages of bipolar versus referential recording montages?

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Sullivan, L.R., Beverwyk, A.J., Davis, S.F. (2020). Electroencephalography. In: Davis, S., Kaye, A. (eds) Principles of Neurophysiological Assessment, Mapping, and Monitoring. Springer, Cham. https://doi.org/10.1007/978-3-030-22400-4_10

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  • DOI: https://doi.org/10.1007/978-3-030-22400-4_10

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-030-22399-1

  • Online ISBN: 978-3-030-22400-4

  • eBook Packages: MedicineMedicine (R0)

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