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Titolo:
A SYSTEM FOR TRACKING CHANGES IN THE MIDLATENCY EVOKED-POTENTIAL DURING ANESTHESIA
Autore:
HANSSON M; GANSLER T; SALOMONSSON G;
Indirizzi:
LUND UNIV,DEPT APPL ELECT,SIGNAL PROC GRP S-22100 LUND SWEDEN
Titolo Testata:
IEEE transactions on biomedical engineering
fascicolo: 3, volume: 45, anno: 1998,
pagine: 323 - 334
SICI:
0018-9294(1998)45:3<323:ASFTCI>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
WAVE-FORM ESTIMATION;
Keywords:
ANESTHESIA; FILTER BANK; LEAST SQUARES ESTIMATION; MEDIAN; MIDLATENCY AUDITORY EVOKED POTENTIAL (MLAEP); SURGERY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
10
Recensione:
Indirizzi per estratti:
Citazione:
M. Hansson et al., "A SYSTEM FOR TRACKING CHANGES IN THE MIDLATENCY EVOKED-POTENTIAL DURING ANESTHESIA", IEEE transactions on biomedical engineering, 45(3), 1998, pp. 323-334

Abstract

This paper describes a method to measure changes in the mid-latency auditory evoked potential (MLAEP) during anesthesia. It is claimed thatthe position of the Nb-trough of the MLAEP indicates the level of consciousness. The component shows graded changes corresponding to the dose of anesthetic and it exhibits stable reproducible properties between different subjects. We propose a system that reduces the disturbances in an averaged MLAEP using fewer realizations than in the standard averaging procedure, The resulting smoothing error is reduced if the number of stimulus is decreased. Unfortunately, the variance of the waveform estimate is, thereby, increased. An improved method must be used in order to estimate the Nb-trough within a prescribed time interval of one minute. The procedure is based on inherent properties of the MLAEP and the noise, A simulation and examples of the performance on realdata recorded during surgery are shown.

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Documento generato il 26/01/20 alle ore 09:49:36