Time- and frequency-difference imaging using KHU Mark1 EIT system

Sang Min Kim, Tong In Oh, Eung Je Woo, Sung Whan Kim, Jin Keun Seo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)


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.

Original languageEnglish
Title of host publication13th International Conference on Electrical Bioimpedance and the 8th Conference on Electrical Impedance Tomography 2007, ICEBI 2007
PublisherSpringer Verlag
Number of pages4
ISBN (Print)9783540738404
Publication statusPublished - 2007

Publication series

NameIFMBE Proceedings
Volume17 IFMBE
ISSN (Print)1680-0737

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Biomedical Engineering


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