نتایج جستجو برای: electrical impedance imaging

تعداد نتایج: 668248  

2010
Dandan Yan Wenlong Xu Jing Li

The present study aims to estimate the in vivo anisotropic conductivities of the White Matter (WM) tissues by means of Magnetic Resonance Electrical Impedance Tomography (MREIT) technique. The realistic anisotropic volume conductor model with different conductivity properties (scalp, skull, CSF, gray matter and WM) is constructed based on the Diffusion Tensor Magnetic Resonance Imaging (DT-MRI)...

2014
Feng Fu Bing Li Meng Dai Shi-Jie Hu Xia Li Can-Hua Xu Bing Wang Bin Yang Meng-Xing Tang Xiu-Zhen Dong Zhou Fei Xue-Tao Shi

OBJECTIVE Variations of conductive fluid content in brain tissue (e.g. cerebral edema) change tissue impedance and can potentially be measured by Electrical Impedance Tomography (EIT), an emerging medical imaging technique. The objective of this work is to establish the feasibility of using EIT as an imaging tool for monitoring brain fluid content. DESIGN a prospective study. SETTING In thi...

2003
Yong Jung Kim Ohin Kwon Jin Keun Seo Eung Je Woo

Magnetic Resonance Electrical Impedance Tomography (MREIT) is a new medical imaging modality providing high resolution conductivity images based on the current injection MRI technique. In contrast to Electrical Impedance Tomography (EIT), the MREIT system utilizes the internal information of current density distribution which plays an important role in eliminating the ill-posedness of the inver...

Journal: :Journal of Geophysical Research: Solid Earth 2003

Journal: :Journal of Physics: Conference Series 2010

Journal: :Ingeniería Solidaria 2020

2002
Liliana Borcea

We review theoretical and numerical studies of the inverse problem of electrical impedance tomography which seeks the electrical conductivity and permittivity inside a body, given simultaneous measurements of electrical currents and potentials at the boundary. (Some figures in this article are in colour only in the electronic version)

Journal: :IEEE Trans. Med. Imaging 1999
Margaret Cheney David Isaacson Jonathan C. Newell

This paper surveys some of the work our group has done in electrical impedance tomography.

2003
Philip Church

Electrical impedance tomography (EIT) is a technology developed to image the electrical conductivity distribution of a conductive medium. The technology is of interest because of its low cost and also because the measurement of the electrical conductivity brings direct information about the composition of the conductive medium. Because the ground is conductive to a certain extent, the technolog...

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