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Influence of electrode mismatch on Cole parameter estimation from Total Right Side Electrical Bioimpedance Spectroscopy measurements

Buendia, Ruben, 1983- (author)
Högskolan i Borås,Institutionen Ingenjörshögskolan
bogonez-franco, Paco (author)
Technical University of Catalonia,Department of Electronic Engineering
Nescolarde, Lexa (author)
Technical University of Catalonia,Department of Electronic Engineering
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Seoane, Fernando, 1976- (author)
Högskolan i Borås,KTH,Medicinska sensorer, signaler och system (MSSS),Institutionen Ingenjörshögskolan
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 (creator_code:org_t)
Elsevier BV, 2012
2012
English.
In: Medical Engineering and Physics. - : Elsevier BV. - 1350-4533 .- 1873-4030. ; 34:7, s. 1024-1028
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Applications based on measurements of Electrical Bioimpedance (EBI) spectroscopy analysis, like assessment of body composition, have proliferated in the past years. Currently Body Composition Assessment (BCA) based in Bioimpedance Spectroscopy (BIS) analysis relays on an accurate estimation of the Cole parameters R-0 and R-infinity. A recent study by Bogonez-Franco et al. has proposed electrode mismatch as source of remarkable artefacts in BIS measurements. Using Total Right Side BIS measurements from the aforementioned study, this work has focused on the influence of electrode mismatch on the estimation of R-0 and R-infinity using the Non-Linear Least Square curve fitting technique on the modulus of the impedance. The results show that electrode mismatch on the voltage sensing electrodes produces an overestimation of the impedance spectrum leading to a wrong estimation of the parameters R-0 and R-infinity, and consequently obtaining values around 4% larger that the values obtained from BIS without electrode mismatch. The specific key factors behind electrode mismatch or its influence on the analysis of single and spectroscopy measurements have not been investigated yet, no compensation or correction technique is available to overcome the deviation produced on the EBI measurement. Since textile-enabled EBI applications using dry textrodes, i.e. textile electrodes with dry skin-electrode interfaces and potentially large values of electrode polarization impedance are more prone to produce electrode mismatch, the lack of a correction or compensation technique might hinder the proliferation of textile-enabled EBI applications for personalized healthcare monitoring.

Subject headings

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)
TEKNIK OCH TEKNOLOGIER  -- Medicinteknik -- Annan medicinteknik (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Medical Engineering -- Other Medical Engineering (hsv//eng)

Keyword

Bioimpedance spectroscopy
textile electrodes
measurement artefacts
cole parameters

Publication and Content Type

ref (subject category)
art (subject category)

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