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Titolo:
Time-variant non-linear phase-coupling analysis of EEG burst patterns in sedated patients during electroencephalic burst suppression period
Autore:
Schack, B; Witte, H; Helbig, M; Schelenz, C; Specht, M;
Indirizzi:
Univ Jena, Fac Med, Inst Med Stat Comp Sci & Documentat, D-07740 Jena, Germany Univ Jena Jena Germany D-07740 p Sci & Documentat, D-07740 Jena, Germany Tech Univ Ilmenau, Inst Biomed Engn & Med Informat, D-98684 Ilmenau, Germany Tech Univ Ilmenau Ilmenau Germany D-98684 rmat, D-98684 Ilmenau, Germany Univ Jena, Fac Med, Clin Anaesthesiol & Intens Care, D-07740 Jena, GermanyUniv Jena Jena Germany D-07740 siol & Intens Care, D-07740 Jena, Germany
Titolo Testata:
CLINICAL NEUROPHYSIOLOGY
fascicolo: 8, volume: 112, anno: 2001,
pagine: 1388 - 1399
SICI:
1388-2457(200108)112:8<1388:TNPAOE>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
FREQUENCY ANALYSIS; GABOR; SLEEP; SEIZURES; SERIES;
Keywords:
electroencephalic burst suppression pattern; sedation; time-variant bispectral analysis; amplitude modulation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
26
Recensione:
Indirizzi per estratti:
Indirizzo: Schack, B Univ Jena, Fac Med, Inst Med Stat Comp Sci & Documentat, D-07740Jena, Germany Univ Jena Jena Germany D-07740 cumentat, D-07740 Jena, Germany
Citazione:
B. Schack et al., "Time-variant non-linear phase-coupling analysis of EEG burst patterns in sedated patients during electroencephalic burst suppression period", CLIN NEU, 112(8), 2001, pp. 1388-1399

Abstract

Objectives: The quadratic phase-coupling QPC within burst patterns during electroencephalic burst suppression has been quantified. Methods: It can be shown that a QPC exists between the frequency ranges 0-2.5 and 3-7.5 Hz and between the frequency ranges 0-2.5 and 8-12 Hz. By means of time-variant bicoherence analysis, a strong phase-locking between themodulating and the modulated component can be identified. The phase-locking is demonstrable within the first 250 ms after the burst onset and comes up to the maximum between 750 and 1250 ms. Results: The effect is maintained over the whole first part of the burst (2 s) with a decreasing tendency after 1250 ms. All these effects cannot be found in the EEG before: entering the burst suppression period (BSP). The transient coupling phenomena in the EEG bursts during BSP can be regarded asindicators for short-term interrelations between the underlying electrophysiologic processes. Conclusions: It can be suggested that the method introduced for the quantification of the sedation depth should be used. (C) 2001 Elsevier Science Ireland Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/05/20 alle ore 15:11:56