Conductivity imaging of postmortem and in-vivo canine brains using MREIT

Eung Je Woo, Hyung Joong Kim, Byung Il Lee, Soo Yeol Lee, Jin Keun Seo, Hee Myung Park

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

2 Citations (Scopus)

Abstract

Magnetic Resonance Electrical Impedance Tomography (MREIT) has the potential to provide conductivity images with high spatial resolution and accuracy. Following recent studies using various conductivity phantoms, we performed postmortem and also in vivo animal imaging studies of canine brains. Using imaging currents of 40 and 5 mA in postmortem and in vivo experiments, respectively, we have produced conductivity images of canine brains with a pixel size of 1.406×1.406 mm2. Reconstructed conductivity images show clear contrast between white and gray matters in situ. Considering the anisotropic conductivity of white matters, we interpreted reconstructed conductivity images as equivalent isotropic conductivity images. Estimated conductivity ratios of white to gray matters were between 1.13 and 1.20 depending on the choice of a region of interest in reconstructed images. Higher conductivity values of white matters compared with those of gray matters stem from the fact that reconstructed equivalent isotropic conductivity values of white matters reflect higher conductivity of white matters in the longitudinal direction.

Original languageEnglish
Title of host publicationProc. of 2007 Joint Meet. of the 6th Int. Symp. on Noninvasive Functional Source Imaging of the Brain and Heart and the Int. Conf. on Functional Biomedical Imaging, NFSI and ICFBI 2007
Pages345-348
Number of pages4
DOIs
Publication statusPublished - 2007 Dec 1
Event2007 Joint Meeting of the 6th International Symposium on Noninvasive Functional Source Imaging of the Brain and Heart and the International Conference on Functional Biomedical Imaging, NFSI and ICFBI 2007 - Hangzhou, China
Duration: 2007 Oct 122007 Oct 14

Publication series

NameProc. of 2007 Joint Meet. of the 6th Int. Symp. on Noninvasive Functional Source Imaging of the Brain and Heart and the Int. Conf. on Functional Biomedical Imaging, NFSI and ICFBI 2007

Other

Other2007 Joint Meeting of the 6th International Symposium on Noninvasive Functional Source Imaging of the Brain and Heart and the International Conference on Functional Biomedical Imaging, NFSI and ICFBI 2007
CountryChina
CityHangzhou
Period07/10/1207/10/14

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All Science Journal Classification (ASJC) codes

  • Biomedical Engineering
  • Radiology Nuclear Medicine and imaging

Cite this

Woo, E. J., Kim, H. J., Lee, B. I., Lee, S. Y., Seo, J. K., & Park, H. M. (2007). Conductivity imaging of postmortem and in-vivo canine brains using MREIT. In Proc. of 2007 Joint Meet. of the 6th Int. Symp. on Noninvasive Functional Source Imaging of the Brain and Heart and the Int. Conf. on Functional Biomedical Imaging, NFSI and ICFBI 2007 (pp. 345-348). [4387771] (Proc. of 2007 Joint Meet. of the 6th Int. Symp. on Noninvasive Functional Source Imaging of the Brain and Heart and the Int. Conf. on Functional Biomedical Imaging, NFSI and ICFBI 2007). https://doi.org/10.1109/NFSI-ICFBI.2007.4387771