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

doi:10.1109/NFSI-ICFBI.2007.4387771

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

Department of Computational Science and Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference 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 language	English
Title of host publication	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
Pages	345-348
Number of pages	4
DOIs	https://doi.org/10.1109/NFSI-ICFBI.2007.4387771
Publication status	Published - 2007
Event	2007 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 12 → 2007 Oct 14

Publication series

Name	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

Other

Other	2007 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
Country/Territory	China
City	Hangzhou
Period	07/10/12 → 07/10/14

All Science Journal Classification (ASJC) codes

Biomedical Engineering
Radiology Nuclear Medicine and imaging

Access to Document

10.1109/NFSI-ICFBI.2007.4387771

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). Article 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

Woo, Eung Je ; Kim, Hyung Joong ; Lee, Byung Il et al. / Conductivity imaging of postmortem and in-vivo canine brains using MREIT. 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. 2007. pp. 345-348 (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).

@inproceedings{b3ff556d5cc34910a744e8afb0e84ecb,

title = "Conductivity imaging of postmortem and in-vivo canine brains using MREIT",

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.",

author = "Woo, {Eung Je} and Kim, {Hyung Joong} and Lee, {Byung Il} and Lee, {Soo Yeol} and Seo, {Jin Keun} and Park, {Hee Myung}",

year = "2007",

doi = "10.1109/NFSI-ICFBI.2007.4387771",

language = "English",

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booktitle = "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",

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Woo, EJ, Kim, HJ, Lee, BI, Lee, SY, Seo, JK & Park, HM 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., 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, pp. 345-348, 2007 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, 07/10/12. https://doi.org/10.1109/NFSI-ICFBI.2007.4387771

Conductivity imaging of postmortem and in-vivo canine brains using MREIT. / Woo, Eung Je; Kim, Hyung Joong; Lee, Byung Il et al.
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. 2007. p. 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).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AU - Woo, Eung Je

AU - Kim, Hyung Joong

AU - Lee, Byung Il

AU - Lee, Soo Yeol

AU - Seo, Jin Keun

AU - Park, Hee Myung

PY - 2007

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AB - 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.

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Woo EJ, Kim HJ, Lee BI, Lee SY, Seo JK, Park HM. 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. 2007. p. 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). doi: 10.1109/NFSI-ICFBI.2007.4387771

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

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