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

摘要: Applications based on measurements of Electrical Bioimpedance (EBI) spectroscopy analysis, like assessment body composition, have proliferated in the past years. Currently Body Composition Assessment (BCA) Spectroscopy (BIS) analysis relays an accurate estimation Cole parameters R0 and R∞. A recent study by Bogonez-Franco et al. has proposed electrode mismatch as source remarkable artefacts BIS measurements. Using Total Right Side from aforementioned study, this work focused influence R∞ using Non-Linear Least Square curve fitting technique modulus impedance. The results show that voltage sensing electrodes produces overestimation impedance spectrum leading to a wrong R∞, consequently obtaining values around 4% larger obtained without mismatch. specific key factors behind or its single not been investigated yet, no compensation correction is available overcome deviation produced EBI measurement. Since textile-enabled applications dry textrodes, i.e. textile with skin–electrode interfaces potentially large polarization are more prone produce mismatch, lack might hinder proliferation for personalized healthcare monitoring.