Depth of anaesthesia assessment based on adult electroencephalograph beta frequency band

Li, Tianning and Wen, Peng (2016) Depth of anaesthesia assessment based on adult electroencephalograph beta frequency band. Australasian Physical & Engineering Sciences in Medicine, 39 (3). pp. 773-781. ISSN 0158-9938

Abstract

This paper presents a new method to apply timing characteristics of electroencephalograph (EEG) beta frequency bands to assess the depth of anaesthesia (DoA). Firstly, the measured EEG signals are denoised and decomposed into 20 different frequency bands. The Mobility (M), permutation entropy (PE) and Lempel–Ziv complexity (LCZ) of each frequency band are calculated.The M, PE and LCZ values of beta frequency bands (21.5–30 Hz) are selected to derive a new index. The new index is evaluated and compared with measured bispectral (BIS). The results show that there is a very close correlation between the proposed index and the BIS during different anaesthetic states. The new index also shows a 25–264 s earlier time response than BIS during the transient period of anaesthetic states. In addition, the proposed index is able to continuously assess the DoA when the quality of signal is poor and the BIS does not have any valid outputs.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Accepted version deposited in accordance with the opyright policy of the publisher.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering
Date Deposited: 13 Feb 2017 05:57
Last Modified: 03 Oct 2017 04:18
Uncontrolled Keywords: depth of anaesthesia; mobility ; permutation entropy ; Lempel–Ziv complexity
Fields of Research : 08 Information and Computing Sciences > 0899 Other Information and Computing Sciences > 089999 Information and Computing Sciences not elsewhere classified
09 Engineering > 0903 Biomedical Engineering > 090399 Biomedical Engineering not elsewhere classified
09 Engineering > 0903 Biomedical Engineering > 090303 Biomedical Instrumentation
Identification Number or DOI: 10.1007/s13246-016-0459-5
URI: http://eprints.usq.edu.au/id/eprint/30049

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