Modelling Arterial Pressure Waveforms Using Gaussian Functions and Two-Stage Particle Swarm Optimizer
Joint Authors
Liu, Changchun
Li, Qiqiang
Zhuang, Tao
Chang, Faliang
Liu, Chengyu
Zhao, Lina
Zheng, Dingchang
Wei, Shoushui
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-05-20
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Changes of arterial pressure waveform characteristics have been accepted as risk indicators of cardiovascular diseases.
Waveform modelling using Gaussian functions has been used to decompose arterial pressure pulses into different numbers of subwaves and hence quantify waveform characteristics.
However, the fitting accuracy and computation efficiency of current modelling approaches need to be improved.
This study aimed to develop a novel two-stage particle swarm optimizer (TSPSO) to determine optimal parameters of Gaussian functions.
The evaluation was performed on carotid and radial artery pressure waveforms (CAPW and RAPW) which were simultaneously recorded from twenty normal volunteers.
The fitting accuracy and calculation efficiency of our TSPSO were compared with three published optimization methods: the Nelder-Mead, the modified PSO (MPSO), and the dynamic multiswarm particle swarm optimizer (DMS-PSO).
The results showed that TSPSO achieved the best fitting accuracy with a mean absolute error (MAE) of 1.1% for CAPW and 1.0% for RAPW, in comparison with 4.2% and 4.1% for Nelder-Mead, 2.0% and 1.9% for MPSO, and 1.2% and 1.1% for DMS-PSO.
In addition, to achieve target MAE of 2.0%, the computation time of TSPSO was only 1.5 s, which was only 20% and 30% of that for MPSO and DMS-PSO, respectively.
American Psychological Association (APA)
Liu, Chengyu& Zhuang, Tao& Zhao, Lina& Chang, Faliang& Liu, Changchun& Wei, Shoushui…[et al.]. 2014. Modelling Arterial Pressure Waveforms Using Gaussian Functions and Two-Stage Particle Swarm Optimizer. BioMed Research International،Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-508395
Modern Language Association (MLA)
Liu, Chengyu…[et al.]. Modelling Arterial Pressure Waveforms Using Gaussian Functions and Two-Stage Particle Swarm Optimizer. BioMed Research International No. 2014 (2014), pp.1-10.
https://search.emarefa.net/detail/BIM-508395
American Medical Association (AMA)
Liu, Chengyu& Zhuang, Tao& Zhao, Lina& Chang, Faliang& Liu, Changchun& Wei, Shoushui…[et al.]. Modelling Arterial Pressure Waveforms Using Gaussian Functions and Two-Stage Particle Swarm Optimizer. BioMed Research International. 2014. Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-508395
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-508395