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13th International Conference on Electrical Bioimpedance and the 8th Conference on Electrical Impedance Tomography pp 70–72Cite as

Frequency characteristics of the electrical conductivity in normal and coagulated blood

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Part of the book series: IFMBE Proceedings ((IFMBE,volume 17))

Abstract

The electrical conductivity and phase shift of normal and coagulated blood sampled from 10 pigs were measured using an LCR meter, Agilent 4285A. The hematocrit of normal blood was also measured. The conductivity difference between normal and coagulated blood remained at 4.3 mS/cm up to 800 kHz, and then gradually decreased. The conductivity difference was not correlated with the hematocrit (correlation coefficient = 0.04). The phase difference between normal and coagulated blood reached the maximum, -13.5 degree, between 1 and 2 MHz. Therefore, it is possible to discriminate thrombi from air emboli using the phase difference at the frequency range of 1 to 2 MHz.

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References

  1. Nebuya S, Brown BH et al. (1999) Measurement of high frequency electrical transfer impedances from biological tissues. Electron Let 35-23:1–2

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Author information

Authors and Affiliations

  1. Department of Clinical Engineering, Kitasato University, Sagamihara, Japan

    M. Noshiro, S. Nebuya & A. Fujimaki

  2. Department of Computer Science, University of Sheffield, Sheffield, UK

    R. Smallwood

  3. Department of Medical Physics, University of Sheffield, Sheffield, UK

    B.H. Brown

Authors
  1. M. Noshiro
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  2. S. Nebuya
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  3. A. Fujimaki
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  4. R. Smallwood
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  5. B.H. Brown
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Editor information

Editors and Affiliations

  1. Institute of Medical Engineering, Graz University of Technology, Kronesgasse 5, 8010, Graz, Austria

    Hermann Scharfetter  & Robert Merwa  & 

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© 2007 Springer-Verlag Berlin Heidelberg

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Noshiro, M., Nebuya, S., Fujimaki, A., Smallwood, R., Brown, B. (2007). Frequency characteristics of the electrical conductivity in normal and coagulated blood. In: Scharfetter, H., Merwa, R. (eds) 13th International Conference on Electrical Bioimpedance and the 8th Conference on Electrical Impedance Tomography. IFMBE Proceedings, vol 17. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-73841-1_21

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  • DOI: https://doi.org/10.1007/978-3-540-73841-1_21

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-73840-4

  • Online ISBN: 978-3-540-73841-1

  • eBook Packages: EngineeringEngineering (R0)

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