title: Intraoperative EEG monitoring: (II). Similarity analysis using density-modulated t array.
abstract: A method of showing the similarity, in other words, defining the difference between a pair of EEG patterns has been developed. By using the student t test on the power spectra at the appropriate frequency intervals, the t values obtained can be used as an indicator of the difference between the spectral patterns with respect to the frequency intervals. This so-called t-profile can be computed on real time basis and the result superimposed in different colors using the apparatus described previously to produce a 3-dimensional picture. We call this picture a density-modulated t array or DTA. Along with CSA and DSA (compressed/density-modulated spectral arrays), it proved to be a very powerful tool in intraoperative EEG monitoring.
authors.affiliation: Department of Anesthesiology, School of Medicine, Tokai University, Kanagawa, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Kinefuchi
authors.forename: H
authors.initials: H
authors.lastname: Katoh
authors.forename: I
authors.initials: I
authors.lastname: Ohtani
authors.forename: T
authors.initials: T
authors.lastname: Iga
authors.forename: K
authors.initials: K
authors.lastname: Shirakura
authors.forename: Y
authors.initials: Y
authors.lastname: Yamasaki
mesh_terms: D000328:Adult; D000758:Anesthesia; D004569:Electroencephalography / Q000295:instrumentation; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008433:Mathematics; D008875:Middle Aged; D013514:Surgical Procedures, Operative