title: Depth of anesthesia index using cumulative power spectrum.
abstract: Over the last ten years, monitors of depth of anesthesia have progressively been integrated in the clinical practice. Based on the analysis of the electroencephalogram (EEG), these monitors deliver an index that helps the anesthesiologist to determine the state of the patient during the surgery. Although they employ different kind of algorithms, spectral parameters are always taken into account to achieve the final indexes. In this work, a new spectral parameter based on the cumulative power spectrum is proposed. When compared to the Spectral Edge Frequency (SEF), a classic spectral parameter, the Cumulative Power Spectrum Index (CPSI) presents a higher correlation with reference indexes (AAI, BIS and CePROP) and a higher prediction probability of the state of the patient. Furthermore, when compared to the reference indexes, the CPSI shows similar performances in terms of correlation and presents a higher prediction probability than two of them (BIS and CePROP).
authors.affiliation: Department of Automatic Control, Biomedical Engineering Research Center, Technical University of Catalonia (UPC), 08028 Barcelona, Spain. mathieu.jospin@upc.edu
authors.forename: Mathieu
authors.initials: M
authors.lastname: Jospin
authors.forename: Pere
authors.initials: P
authors.lastname: Caminal
authors.forename: Erik W
authors.initials: EW
authors.lastname: Jensen
authors.forename: Montserrat
authors.initials: M
authors.lastname: Vallverdu
authors.forename: Michel M F
authors.initials: MM
authors.lastname: Struys
authors.forename: Hugo E M
authors.initials: HE
authors.lastname: Vereecke
authors.forename: Daniel T
authors.initials: DT
authors.lastname: Kaplan
mesh_terms: D000768:Anesthesia, General; D016208:Databases, Factual; D004569:Electroencephalography / Q000379:methods*; D006801:Humans; D016343:Monitoring, Intraoperative / Q000379:methods