Journal
PHYSIOLOGICAL MEASUREMENT
Volume 28, Issue 7, Pages S101-S114Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0967-3334/28/7/S08
Keywords
electrical impedance tomography; reconstruction algorithm; D-bar method; elliptical tank
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Funding
- NIBIB NIH HHS [R01 EB000456, R01 EB000456-01A2, R01-EB000456-01] Funding Source: Medline
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The D-bar algorithm based on A Nachman's 2D global uniqueness proof for the inverse conductivity problem (Nachman 1996 Ann. Math. 143 71-96) is implemented on an elliptical domain. The scattering transform is computed on an ellipse and the complete electrode model (CEM) for the forward problem is computed with the finite element method (FEM) in order to obtain static conductivity reconstructions of conductive and insulating targets in a saline-filled tank. It is demonstrated that the spatial artifacts in the image are significantly reduced when the domain is properly modeled in the reconstruction, as opposed to being modeled as a disk.
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