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Enhancing induced current magnetic resonance electrical impedance tomography ICMREIT image reconstruction
Date
2016-02-15
Author
NAJI, NASHWAN
EROĞLU, HASAN HÜSEYİN
SÜMSER, KEMAL
SADIGHI, MEHDI
Eyüboğlu, Behçet Murat
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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Induced Current Magnetic Resonance Electrical Impedance Tomography (ICMREIT) is an emerging imaging methodology that utilizes Magnetic Resonance Imaging (MRI) techniques to visualize the electrical conductivity as a new contrast. In ICMREIT, by fast switching of gradient fields of Magnetic Resonance (MR) system eddy currents are induced in the imaging volume. The secondary magnetic field generated by the induced eddy currents can be extracted from the MR phase images. Image reconstruction algorithms then use this secondary field map to recover the conductivity distribution. In this paper, a novel approach is proposed to enhance the quality of the reconstructed conductivity maps, from the perspectives of edge preservation and noise sensitivity. Simulated measurements are used to demonstrate the improvements introduced by the proposed method.
Subject Keywords
Impedance imaging
,
MRI
,
ICMREIT
,
Conductivity reconstruction
URI
https://hdl.handle.net/11511/41207
DOI
https://doi.org/10.2316/p.2016.832-034
Collections
Department of Electrical and Electronics Engineering, Conference / Seminar