Abstract
Microwave imaging provides an alternative method for breast cancer screening and the diagnosis of cerebrovascular accidents. Before a surgical operation, the performance of microwave imaging systems should be evaluated on anatomically detailed anthropomorphic phantoms. This paper puts forward the advances in the development of breast phantoms based on 3D printing structures filled with liquid solutions that mimic biological tissues in terms of complex permittivity in a wide microwave frequency band. In this paper; four different experimental scenarios were created, and measurements were performed, and although there are many vector network analyzers on the market, the miniVNA used in this study has been shown to have potential in many biomedical applications such as portable computer-based breast cancer detection studies. We especially investigated the reproducibility of a particular mixture and the ability of some mixes to mimic various breast tissues. Afterwards, the images similar to the experimentally created scenarios were obtained by implementing the inverse radon transform to the obtained data.
Highlights
Breast cancer ranks second among female deaths all over the world
The physical basis for the detection of breast cancer with microwave imaging is the difference between the dielectric properties of normal and malignant breast tissues
For all the reasons mentioned above, microwave breast imaging has the potential to overcome some of the limitations of traditional breast cancer screening systems
Summary
Breast cancer ranks second among female deaths all over the world. Breast cancer incidence is increasing in the United States and European Union countries [1]. The physical basis for the detection of breast cancer with microwave imaging is the difference between the dielectric properties of normal and malignant breast tissues. The significant difference between the dielectric properties of the normal and malignant breast tissue in microwave frequencies, the number of misseddetections and, false-positives are meagre, and this is considered to be the most important motivation for developing a microwave imaging technique for breast cancer detection. Emine Avşar Aydin, Selin Yabaci Karaoğlan: Reference Breast Phantoms for Low-Cost Microwave Imaging are scattered depending on the electrical properties of the displayed tissues. Before inversion algorithms can be used in clinical studies, they need to be tested against the experimental data collected in controlled configurations on reference phantoms The latter must be close to breast tissues in terms of dielectric properties, simple structures benefit instability over time and reproducibility over more complex structures.
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