Width Optimization of Array Electrode for Human Lung Electrical Resistance Tomography System Based on prior Knowledge

In electrical resistance tomography (ERT) technology for human lung, under the same experimental conditions, the width of the sensitive field boundary electrode has a significant impact on the calculation accuracy of the inverse problem besides the finite element model (FEM) topology. Aiming to impr...

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Bibliographic Details
Published in:Complexity (New York, N.Y.) N.Y.), 2021, Vol.2021 (1)
Main Author: Xiao, Liqing
Format: Article
Language:English
Subjects:
Accuracy
Algorithms
Conductivity
Electrical resistance
Electrodes
Finite element method
Heart
Hessian matrices
Image quality
Image reconstruction
Influenza
Inverse problems
Lungs
Morbidity
Mortality
Optimization
Respiratory diseases
Sensitivity
Tomography
Topology
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Summary:In electrical resistance tomography (ERT) technology for human lung, under the same experimental conditions, the width of the sensitive field boundary electrode has a significant impact on the calculation accuracy of the inverse problem besides the finite element model (FEM) topology. Aiming to improve the quality of reconstructed images, the FEM for human lung was set up based on prior knowledge. On this basis, the electrode width of the FEM was optimised by comparing the morbidity degrees of the sensitivity matrix and Hessian matrix, the uniformity of sensitivity distribution, and the quality of reconstructed images, which can improve the accuracy of solving the inverse problem significantly.
ISSN:1076-2787
1099-0526
DOI:10.1155/2021/4380220