Measurement of cardiovascular state using attractor reconstruction analysis

Charlton, PH, Camporota, L, Smith, J, Nandi, M, Christie, M, Aston, PJ and Beale, R (2015) Measurement of cardiovascular state using attractor reconstruction analysis In: 23rd European Signal Processing Conference, 2015-08-31 - 2015-09-04, Nice, France.

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Abstract

Attractor reconstruction (AR) analysis has been used previously to quantify the variability in arterial blood pressure (ABP) signals. Since ABP signals are only available in a minority of clinical scenarios, we sought to determine whether AR could also be performed on more widely available photoplethysmogram (PPG) signals. AR analysis was performed on simultaneous ABP and PPG signals before, during and after a change in cardiovascular state. A novel quality metric was used to eliminate windows of low quality AR. A high level of agreement was found between the detected periodicity of each signal, tau-opt, a measure of the heart rate. The remaining cardiovascular parameters derived using AR analysis exhibited similar trends between the two signals in response to the change in state, although there was poor agreement between their absolute values. This demonstrates the feasibility of applying AR to the PPG signal, providing opportunity to increase the range of patients in whom cardiovascular state can be measured using AR analysis.

Item Type:	Conference or Workshop Item (Conference Paper)
Divisions :	Faculty of Engineering and Physical Sciences > Mathematics
Authors :	Name Email ORCID Charlton, PH Camporota, L Smith, J Nandi, M Christie, M Aston, PJ Beale, R
Date :	31 August 2015
DOI :	10.1109/EUSIPCO.2015.7362422
Copyright Disclaimer :	© 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Additional Information :	© 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Depositing User :	Symplectic Elements
Date Deposited :	17 Feb 2016 15:55
Last Modified :	31 Oct 2017 17:58
URI:	http://epubs.surrey.ac.uk/id/eprint/809633

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