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Depth of anaesthesia assessment based on adult electroencephalograph beta frequency band.

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.

journal_name

Australas Phys Eng Sci Med

journal_title

Australasian physical & engineering sciences in medicine

authors

Li T,Wen P

doi

10.1007/s13246-016-0459-5

subject

Has Abstract

pub_date

2016-09-01 00:00:00

pages

773-81

issue

3

eissn

0158-9938

issn

1879-5447

pii

10.1007/s13246-016-0459-5

journal_volume

39

pub_type

杂志文章

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