Local harmonic Bz algorithm in MREIT

Sungwhan Kim, Jin Keun Seo, Sungwan Kim, Eung Je Woo, Kiwan Jun, Chang Ok Lee

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

Abstract

In magnetic resonance electrical impedance tomography (MREIT) where we try to reconstruct conductivity images with high spatial resolution, we should generate at least two non-parallel internal current density distributions by sequentially injecting multiple independent currents. However, when the object has a relatively very low conductivity region, the direction of current density due to any injection current becomes tangential to the boundary of the region. This kind of regions may include bones, lungs, and air-filled stomach. Hence, the previous MREIT reconstruction algorithms fail to provide accurate conductivity reconstruction near boundaries of insulating regions since this requirement is not satisfied. To deal with this difficulty, we propose local harmonic Bz-algorithm which find conductivity values in the separated problematic regions.

Original languageEnglish
Title of host publication13th International Conference on Electrical Bioimpedance and the 8th Conference on Electrical Impedance Tomography 2007, ICEBI 2007
PublisherSpringer Verlag
Pages492-495
Number of pages4
ISBN (Print)9783540738404
DOIs
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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    Kim, S., Seo, J. K., Kim, S., Woo, E. J., Jun, K., & Lee, C. O. (2007). Local harmonic Bz algorithm in MREIT. In 13th International Conference on Electrical Bioimpedance and the 8th Conference on Electrical Impedance Tomography 2007, ICEBI 2007 (pp. 492-495). (IFMBE Proceedings; Vol. 17 IFMBE). Springer Verlag. https://doi.org/10.1007/978-3-540-73841-1_127