Artifact Compensation in Bioimpedance Spectroscopy Using Particle Swarm Optimization
This work describes a technique to minimize or suppress stray impedance related artifacts in distorted bioimpedance spectra by using particle swarm optimization (PSO) in well known model functions.The methodology to correct such distorted data is discussed and the use of the proposed algorithm is applied in the correction of high-frequency artifacts like the hook-effect distortion in the Cole diagram representation.Experimental data were acquired from a circuit designed with the PSO algorithm and based on experimental Cole- Cole parameters from a bioimpedance spectrum corresponding to a bovine tissue sample.Capacitances were added in parallel in order to simulate parasitic capacitances.It was shown that,in any of the studied bioimpedance model functions,the PSO algorithm can provide a computationally simple compensation method to the high-frequency effect present in multi-frequency bioimpedance data,and that it could easily be implemented in bioimpedance spectrometer software to correct experimental data and provide a higher level of robustness in the system.
bioimpedance spectroscopy Cole-Cole function particle swarm optimization artifact compensation
A. S. Paterno L. H. Negri
Santa Catarina State University/Department of Electrical Engineering, Joinville, Santa Catarina, Brazil
国际会议
World Congress on Medical Physics and Biomedical Engineering (2012年医学物理及生物医学工程国际会议(IFMBE))
北京
英文
957-960
2012-05-26（万方平台首次上网日期，不代表论文的发表时间）