2020
DOI: 10.3390/electronics9030535
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Heat Transfer Study in Breast Tumor Phantom during Microwave Ablation: Modeling and Experimental Results for Three Different Antennas

Abstract: It is worldwide known that the most common type of cancer among women is breast cancer. Traditional procedures involve surgery, chemotherapy and radiation therapy; however, these treatments are invasive and have serious side effects. For this reason, minimally invasive thermal treatments like microwave ablation are being considered. In this study, thermal behavior of three types of slot-coaxial antennas for breast cancer microwave ablation is presented. By using finite element method (FEM), all antennas were m… Show more

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Cited by 16 publications
(18 citation statements)
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“…The temperature distribution is analogous to that obtained by Ortega-Palacios et al 24 The maximum temperature reached in each is also comparable.…”
Section: Numerical Methods and Model Verificationsupporting
confidence: 86%
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“…The temperature distribution is analogous to that obtained by Ortega-Palacios et al 24 The maximum temperature reached in each is also comparable.…”
Section: Numerical Methods and Model Verificationsupporting
confidence: 86%
“…In the case of a double‐slot antenna, the spacing between the slots is given according to the effective wavelength in the tissue at the operating frequency f . This quantity is estimated by 23 λeff=cfεr, ${\lambda }_{\mathrm{eff}}=\frac{c}{f\sqrt{{\varepsilon }_{r}}},$where c $c$ represents the vacuum speed of light and εr=57 ${\varepsilon }_{r}=57$ is the relative permittivity of the breast cancer tissue 24 . The slot spacing length is equal to 0.25λeff ${0.25\lambda }_{\mathrm{eff}}$.…”
Section: Mathematical Formulationmentioning
confidence: 99%
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“…To describe the magnitude of the wavelength that propagates through the tissue, the effective wavelength (λ eff ) is introduced, which is defined as [80,81]:…”
Section: Mw Antenna Propertiesmentioning
confidence: 99%
“…However, electrical engineers and microwave and RF technology also play a key role in this area. In most of the studies such as [20][21][22], important design parameters, such as the electrical characterization of the radiating antenna, reflection coefficient graphics, farfield radiation, SAR values on the tissue and other primary details that concern the engineers who will make the design, are not given sufficiently. In many studies showing details about the engineering aspects, publications are mostly limited to theoretical or simulation, antenna fabrication or measurements for application are not given [23][24][25][26][27] or the proposed designs are costly, far from being compact or production techniques of them are not suitable for mass production [25,26,[28][29][30].…”
Section: Introductionmentioning
confidence: 99%