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Cole equation and p...
Cole equation and parameter estimation from electrical bioimpedance spectroscopy measurements : A comparative study
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- Ayllon, David (författare)
- Department of Signal Theory and Communications,Applied Signal Processing
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- Seoane, Fernando, 1976- (författare)
- Högskolan i Borås,KTH,Medicinska sensorer, signaler och system (MSSS),Chalmers tekniska högskola,Chalmers University of Technology,Institutionen Ingenjörshögskolan
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- Gil-Pita, Roberto (författare)
- Department of Signal Theory and Communications,Applied Signal Processing
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(creator_code:org_t)
- ISBN 9781424432967
- Buenos Aires : IEEE Engineering in Medicine and Biology, 2009
- 2009
- Engelska.
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Ingår i: EMBC. - Buenos Aires : IEEE Engineering in Medicine and Biology. ; , s. 3779-3782, s. 3779-3782
- Relaterad länk:
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Abstract
Ämnesord
Stäng
- Since there are several applications of Electrical Bioimpedance (EBI) that use the Cole parameters as base of the analysis, to fit EBI measured data onto the Cole equation is a very common practice within Multifrequency-EBI and spectroscopy. The aim of this paper is to compare different fitting methods for EBI data in order to evaluate their suitability to fit the Cole equation and estimate the Cole parameters. Three of the studied fittings are based on the use of Non-Linear Least Squares on the Cole model, one using the real part only, a second using the imaginary part and the third using the complex impedance. Furthermore, a novel fitting method done on the impedance plane, without using any frequency information has been implemented and included in the comparison. Results show that the four methods perform relatively well but the best fitting in terms of standard error of estimate is the fitting obtained from the resistance only. The results support the possibility of measuring only the resistive part of the bioimpedance to accurately fit Cole equation and estimate the Cole parameters, with entailed advantages.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Medicinteknik -- Medicinsk laboratorie- och mätteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Medical Engineering -- Medical Laboratory and Measurements Technologies (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Nyckelord
- bioelectric phenomena
- biomedical measurement
- electric impedance measurement
- least squares approximations
- parameter estimation
- spectroscopy
- Cole equation
- complex impedance
- curve fitting
- electrical bioimpedance spectroscopy
- nonlinear least squares
- Algorithms
- Artifacts
- Biophysics
- Diagnostic Imaging
- Electric Impedance
- Electrochemistry
- Electrophysiology
- Humans
- Least-Squares Analysis
- Models
- Statistical
- Models
- Theoretical
- Reproducibility of Results
- Spectrum Analysis
- Time Factors
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
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