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A wavelet based method for steady-state detection in anesthesia
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Advisor(s)
Abstract(s)
With the recent concern on patient’s outcome
following general anesthesia, automatic control of drugs has
been a field of interest. The Bispectral Index (BIS) is an EEG
based hypnosis monitor, in current use at the operating theatre
as a guiding tool for the anesthesiologist to titrate drugs, and
prevent awareness. When trying to model a certain process, it’s
very important to obtain information of the system behavior
under steady-state conditions. In this study the hypnotic and
analgesic drugs’ effect on the hypnosis index BIS was analyzed,
in order to obtain steady-state information of the system
response (inputs-output), and in the future model the drugs
combined effect. A steady-state index was obtained using a
wavelet analysis technique for trend detection. This tool may
be used in the future to model the drug’s combined effect on the
hypnosis indices, and also to bring some insight on disturbances
not related to drug changes.
Description
Keywords
Citation
A. Castro, F. G. Almeida, P. Amorim and C. S. Nunes, "A wavelet based method for steady-state detection in anesthesia," 2009 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Minneapolis, MN, USA, 2009, pp. 954-957
Publisher
IEEE