Quantitative EEG Analysis: Basics
Published 2017 · Computer Science
Continuous EEG (cEEG) recording in the ICU generates a large volume of data on a daily basis. A 24 h recording, when viewed at 15 s/page, contains 5760 pages of data. Even if reviewed at 5 s/page, it would require approximately 20 min to screen every page. The actual time required is substantially higher when one includes the need to take a closer look at abnormal/changing patterns, artifacts, clinical events, etc. Unlike long-term or epilepsy monitoring, where selective review of a subset of the EEG is reasonable (based on clinical events and screening for abnormal patterns), the entire cEEG record must be reviewed due to the presence of frequent subclinical or nonconvulsive seizures superimposed on an abnormal background. For a busy cEEG service, review of data can become a daunting task.