Bioimpedance spectroscopy

Estimation of Blood Alcohol Content with Bioimpedance Spectroscopy... 

Keywords Bioimpedance spectroscopy extracellular resistance body composition Blood Alcohol Concentration... 

Body position is important because of gravitational influences on the distribution both of blood and the fluids in the stomach/intestine tissue. Direct body segment to body-segment skin contact must be avoided to have stable readings. The feet should therefore be kept at a distance from each other, and the arms should be held out from the chest. Scharfetter et al. (1998) also analyzed the artifacts produced by stray capacitance during whole body or segmental bioimpedance spectroscopy, and proposed a model for simulating the influence of stray capacitance on the measured data. 

The second method is use of bioimpedance spectroscopy (BIS) following the Cole model approach (many groups call it a Cole—Cole model, but that is a permittivity model), earlier used by Cornish et al. (1993). R values are extrapolated at extreme limit frequencies (infinity and zero) for prediction of TBW and extracellular water, respectively, and by difference intracellular water (ICW), most commonly by a method known as mixture theory that uses assumed values for tissue fluid resistivities instead of empirical regression approaches. Body cell mass is then predicted as a function of the ICW (De Lorenzo et al., 1997). The results of Lozano et al. (1995) showed that there is a sharp... 

Bioimpedance spectroscopy tensor probe for anisotropic measurements. Electron. Lett. 48, 1252. 

Lu, Y.Y., Huang, J.J., Huang, YJ., Cheng, K.S., 2013. CeU growth characterization using multi-electrode bioimpedance spectroscopy. Meas. Sci. Technol. 24, 035701. 

Paterno, A.S., Stiz, R.A., Bertemes-Filho, P., 2009. Frequency-domain reconstmction of signals in electrical bioimpedance spectroscopy. Med. Biol. Eng. Comput. 47, 1093—1102. 

Scharfetter, H., Hartinger, R, Hinghofer Szalkay, H., Hutten, H., 1998. A model of artefacts produced by stray capacitance during whole body or segmental bioimpedance spectroscopy. Physiol. Meas. 19 (2), 247—261. 

Abbreviations CLA, conjugated linoleic add BMI, body mass index BC, body composition % BF, percentage of body fat M, men W, women DEXA, dual energy X-ray absorptiometry TOBEC, total body electrical conductivity BIS, bioimpedance spectroscopy NR, not reported SAD, sagittal abdominal diameter. 

ABSTRACT In this study, bioimpedance spectroscopy measurements ranging from 1 kHz to 1 MHz were made on post mortem lung segments of mini pigs. Healthy and partly atelectatic lungs injured by mechanical ventilation were used, both deflated and under air inflation. The results, presented on a Cole-diagram of the complex impedance, conductance by frequency and conductance differences at different frequency plots, are discussed. These data confirm that detection of certain lung diseases may be possible based on differences in impedance measured at different frequencies. 

Optimal electrode positions to determine bladder volume by bioimpedance spectroscopy... 

Keywords. Bioimpedance spectroscopy, Surgical Instrumentation, Artificial Hip Replacement, Bone Cement milling, Sliding Contact... 

Jaffrin MYl, Morel H. Body fluid volumes measurement gy impedance A review of bioimpedance spectroscopy (BIS) and Bioimpedance analysis (BIA) methods. Med Eng Phys. 2008 Dec 30(10) 1257-69. 

R. Gordon and K. Pesti, System for bioimpedance signal simulation from pulsating blood flow in tissues, Lecture Notes on Impedance Spectroscopy, vol. 4, p. 51, 2013. 

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