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PubMed · 16636419

Imaging cardiac activity by the D-bar method for electrical impedance tomography.

D Isaacson·J L Mueller·J C Newell·S Siltanen
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Abstract

A practical D-bar algorithm for reconstructing conductivity changes from EIT data taken on electrodes in a 2D geometry is described. The algorithm is based on the global uniqueness proof of Nachman (1996 Ann. Math. 143 71-96) for the 2D inverse conductivity problem. Results are shown for reconstructions from data collected on electrodes placed around the circumference of a human chest to reconstruct a 2D cross-section of the torso. The images show changes in conductivity during a cardiac cycle.

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AlgorithmsArtifactsCardiography, ImpedanceElectric ImpedanceHeartHumansImage EnhancementImage Interpretation, Computer-AssistedPhantoms, ImagingPlethysmography, ImpedanceReproducibility of ResultsSensitivity and SpecificityTomographyEvaluation StudyJournal ArticleResearch Support, U.S. Gov't, Non-P.H.S.

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D Isaacson, J L Mueller, J C Newell, S Siltanen. 2006-04-18. Imaging cardiac activity by the D-bar method for electrical impedance tomography.. https://doi.org/10.1088/0967-3334%2F27%2F5%2Fs04

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