Abstract
We describe results of time- and frequency-difference imaging experiments using a 16-channel KHU Mark1 EIT system operating in the frequency range of 10 Hz to 500 kHz. As imaging objects, we used a saline tank including three objects of banana, cucumber, and Perspex. Reconstructed images showed frequency-dependent conductivity and permittivity changes of the objects. Following the tank experiment, we performed a difference imaging experiment of a canine thorax during controlled ventilation. For a human subject, we tried difference imaging of the thorax during normal ventilation and the abdomen after intake of conductive liquid. Nothing that both σ and ε affect real and imaginary parts of measured boundary voltages, we suggest future works of new methods to reconstruct and interpret reconstructed difference images of σ and ωε.
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References
Holder D S (2005): Electrical Impedance Tomography: Methods, History and Applications (Bristol, UK, IOP Publishing)
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© 2007 Springer-Verlag Berlin Heidelberg
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Kim, S., Oh, T., Woo, E., Kim, S., Seo, J. (2007). Time- and Frequency-difference Imaging using KHU Mark1 EIT System. 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_89
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DOI: https://doi.org/10.1007/978-3-540-73841-1_89
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-73840-4
Online ISBN: 978-3-540-73841-1
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