TY - JOUR
AU - Voss, Logan J.
AB - Anesthesiology 2008; 109:448 –56 Copyright © 2008, the American Society of Anesthesiologists, Inc. Lippincott Williams & Wilkins, Inc. Using Permutation Entropy to Measure the Electroencephalographic Effects of Sevoflurane Xiaoli Li, Ph.D.,* Suyuan Cui, M.E.,† Logan J. Voss, Ph.D.‡ Background: Approximate entropy (AE) has been proposed to artifact, and the dose–response relation is not opti- as a measure of anesthetic drug effect in electroencephalo- mum for all anesthetic drugs. Recently, the Bispectral graphic data. Recently, a new method called permutation en- Index (BIS) and spectral entropy have been used in tropy (PE) based on symbolic dynamics was also proposed to commercial monitoring systems: the BIS monitor (As- measure the complexity in an electroencephalographic series. In this study, the AE and PE were applied to electroencephalo- pect Medical Systems, Newton, MA) and Entropy Module graphic recordings for revealing the effect of sevoflurane on (Datex-Ohmeda, Helsinki, Finland), respectively. The brain activity. The dose–response relation of PE during sevoflu- bispectral analysis is based on the phase interaction rane anesthesia was compared with that of AE. 6–8 between signals at the different frequency bands ; the Methods: Nineteen patients’ electroencephalographic data entropy module is based on the Shannon entropy of the were collected during 
TI - Using Permutation Entropy to Measure the Electroencephalographic Effects of Sevoflurane
JF - Anesthesiology
DO - 10.1097/ALN.0b013e318182a91b
DA - 2008-09-01
UR - https://www.deepdyve.com/lp/wolters-kluwer-health/using-permutation-entropy-to-measure-the-electroencephalographic-6BdRzVm35F
SP - 448
EP - 456
VL - 109
IS - 3
DP - DeepDyve
ER -