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Advanced Fast 3-D Electromagnetic Solver for Microwave Tomography Imaging
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- Authors
- Nikolai Simonov, Bo-Ra Kim, Kwang-Jae Lee, Soon-Ik Jeon, Seong-Ho Son
- Issue Date
- 2017-10
- Citation
- IEEE Transactions on Medical Imaging, v.36, no.10, pp.2160-2170
- ISSN
- 0278-0062
- Publisher
- IEEE
- Language
- English
- Type
- Journal Article
- Abstract
- This paper describes a fast-forward electromagnetic solver (FFS) for the image reconstruction algorithm of our microwave tomography system. Our apparatus is a preclinical prototype of a biomedical imaging system, designed for the purpose of early breast cancer detection. It operates in the 3-6-GHz frequency band using a circular array of probe antennas immersed in a matching liquid; it produces image reconstructions of the permittivity and conductivity profiles of the breast under examination. Our reconstruction algorithm solves the electromagnetic (EM) inverse problem and takes into account the real EM properties of the probe antenna array as well as the influence of the patient's body and that of the upper metal screen sheet. This FFS algorithm is much faster than conventional EM simulation solvers. In comparison, in the same PC, the CST solver takes 45 min, while the FFS takes 1 s of effective simulation time for the same EM model of a numerical breast phantom.
- KSP Keywords
- Biomedical Imaging, Breast cancer Detection, Circular array, Conductivity profiles, EM model, EM simulation, Early breast cancer, FFS algorithm, Image reconstruction algorithm, Matching liquid, Microwave tomography