Signal or Noise? Understanding EEG Artifacts in ICU Recordings

Scalp EEG is an incredible resource and most noninvasive method to monitor the brain health of critically ill patients and detect non-convulsive seizures in ICU patients.
Not every signal that gets picked up by the scalp electrodes is a cortical signal.

The EEG signal from scalp is amplified before it gets recorded; it gets easily compromised and contaminated with unwanted signals from the ICU equipments, patient care and from the patient himself.

Due to a wide range of electromechanical sources and heavy foot traffic in ICU, it gets challenging to maintain the quality of the EEG signal.

These non-cortical signals known as artifacts in EEG are classified into physiological (from the patient) and non-physiological (environmental/electrical/technical).

It is easy to recognize some of these artifacts, but many of these imitate seizure or interictal patterns. This webinar will explore both the physiological and non-physiological artifacts commonly recorded in an ICU EEG.