PL EN


Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
Tytuł artykułu

Measurements of electrical impedance of biomedical objects

Treść / Zawartość
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Some basic problems related to measurements of electrical impedance of biological objects (bioimpedance) have been presented in this paper. Particularly problems arising from impedance occurring at the sensor–tissue interface (interfacial impedances) in contact measuring methods have been discussed. The influence of finite values of impedances of the current source and voltage measuring device has also been taken into consideration. A model of the impedance sensor for the four-electrode measurement method containing the interfacial, source and measuring device impedances has been given and its frequency characteristics obtained by the computer simulation have been presented. The influence of these impedances on the shape of frequency characteristic of the sensor model has been discussed. Measurements of bioimpedance of healthy and anomalous soft tissues have been described. Some experimental results, particularly the frequency characteristics of bioimpedance, have been shown. The presented results of measurement show that bioimpedance can be a valuable source of information about the tissues, so measurement of bioimpedance can be a useful supplement to other medical diagnostic methods.
Rocznik
Strony
11--17
Opis fizyczny
Bibliogr. 20 poz., rys., wykr.
Twórcy
autor
  • Wrocław Medical University, Faculty of Medicine, Wrocław, Poland
autor
  • Wrocław Medical University, Faculty of Medicine, Wrocław, Poland
autor
  • Wrocław University of Science and Technology, Faculty of Fundamental Problems of Technology, Wrocław, Poland
  • Wrocław University of Science and Technology, Faculty of Fundamental Problems of Technology, Wrocław, Poland
autor
  • Wrocław University of Science and Technology, Faculty of Fundamental Problems of Technology, Wrocław, Poland
autor
  • Wrocław University of Science and Technology, Faculty of Fundamental Problems of Technology, Wrocław, Poland
  • Wrocław University of Science and Technology, Faculty of Fundamental Problems of Technology, Wrocław, Poland
Bibliografia
  • [1] ABERG P., NICANDER I., HOLMGREN U., GELADI P., OLLMAR S., Assesment of skin lesions and skin cancer using simple electrical impedance indices, Skin Research and Technology, 2003, 9, 257–261.
  • [2] CHANG Z., POP G., MEIJER G., A Comparison of Two- and Four-Electrode Techniques to Characterize Blood Impedance for the Frequency Range of 100 Hz to 100 MHz, IEEE Transactions on Biomedical Engineering, 2008, 55 (3), 1247–1249.
  • [3] FRĄCZEK M., KRĘCICKI T., MOROŃ Z., RUCKI Z., SZCZEPANIK Z., Measurements of electrical impedance of soft tissues in larynx, Biocybernetics and Biomedical Engineering XV Conference, Wrocław, 12–15 September 2007, (in Polish).
  • [4] GABRIEL C., GABRIEL S., CORTHOUT E., The dielectric properties of biological tissues: I, Literature Survey. Phys. Med. Biol., 1996, 41, 2231–2293.
  • [5] GRIMNES S., MARTINSEN Ø.G., Bioimpedance and Bioelectricity Basics, Academic Press, London, U.K., 2000.
  • [6] IVORRA A., Bioimpedance Monitoring for Physicians: an Overview, Centre Nacionalde Microelectrònica Biomedical Applications Group, July 2002.
  • [7] IVORRA A., MERITXELL G.M., SOLA A., PALACIOS L., VILLA R., HOTTER G., AGUIL´O J., Bioimpedance dispersion width as a parameter to monitor living tissues, Physiol. Meas., 2005, 26, S165–S173.
  • [8] KYLE U.G., BOSAEUS I., DE LORENZO A.D., DEURENBERG P., ELIA M., GÓMEZ J.M., HEITMANN B.L., KENT-SMITH L., MELCHIOR J.-C., PIRLICH M., SCHARFETTER H., SCHOLS A.M.W.J., PICHARD C., Bioelectrical impedance analysis – part I: review of principles and methods, Clinical Nutrition, 2004, 23, 1226–1243.
  • [9] MACDONALD J.R., Impedance spectroscopy, John Wiley & Sons, New York 1987.
  • [10] MIN M., PARVE T., Improvement of Lock-in Electrical Bio-Impedance Analyzer for Implantable Medical Devices, IEEE Transactions on Instrumentation and Measurement, 2007, 56 (3), 968–974.
  • [11] MIRANDA D.A., RIVERA S.A., Determination of Cole–Cole parameters using only the real part of electrical impedivity measurements, Physiol. Meas., 2008, 29, 669–683.
  • [12] MOROŃ Z., Considerations on the accuracy of measurements of electrical conductivity of liquids, IMEKO XVIII World Congress and IV Brazilian Congress of Metrology, Rio de Janeiro, September 17–22, 2006.
  • [13] NESCOLARDE L., YANGUAS J., LUKASKI H., ALOMAR X., ROSELL-FERRER J., RODAS G., Effects of muscle injury severity on localized bioimpedance measurements, Physiol. Meas., 2015, 36, 27–42.
  • [14] OSYPKA M., GERSING E., Tissue impedance spectra and the appropriate frequencies for EIT, Physiol. Meas., 1995, 16, A49–A55.
  • [15] PETHIG R., Dielectric properties of body tissues, Clin. Phys. Physiol. Meas., 1987, Vol. 8, Suppl. A, 5–12.
  • [16] RIGAUD B., HAMZAOUI L., FRIKHAF M.R., CHAUVEAU N., MORUCCI J.-P., In vitro tissue characterization and modelling using electrical impedance measurements in the 100 Hz–10 MHz frequency range, Physiol. Meas., 1995, 16, A15–A28.
  • [17] SCHARFETTER H., Structural modeling for impedance-based non-invasive diagnostic methods, Thesis for the habilitation at the Faculty of Electrical Engineering Technical University Graz, Graz 1999.
  • [18] WTOREK J., Techniki elektroimpedancyjne w medycynie. Monografia, Gdańsk, Poland 2002.
  • [19] YANG Y., WANG J., YU G., NIU F., HE P., Design and preliminary evaluation of a portable device for the measurement of bioimpedance spectroscopy, Physiol. Meas., 2006, 27, 1293–1310.
  • [20] ZAGAR T., KRIZAJ D., An instrumentation amplifier as a frontend for a four-electrode bioimpedance measurement, Physiol. Meas., 2007, 28, N57–N65.
Uwagi
PL
Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-33d0ed37-8124-459d-bfaf-329795607377
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.