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Open AccessArticle

Heat Transfer Study in Breast Tumor Phantom during Microwave Ablation: Modeling and Experimental Results for Three Different Antennas

Biomedical Engineering, Universidad Politécnica de Pachuca, Hidalgo 43830, Mexico
Division of Medical Engineering Research, National Institute of Rehabilitation, Mexico City 14389, Mexico
División de Estudios de Posgrado e Investigación, Tecnológico Nacional de México, Instituto Tecnológico de la Laguna, Blvd. Revolución, Esq. Calzada Instituto Tecnológico de la Laguna, Zona Centro, Torréon 27000, COAH, Mexico
Electrical Engineering Department, Bioelectronics Section, Centro de Investigación y de Estudios Avanzados-IPN, Mexico City 07360, Mexico
Author to whom correspondence should be addressed.
Electronics 2020, 9(3), 535;
Received: 4 February 2020 / Revised: 13 March 2020 / Accepted: 17 March 2020 / Published: 24 March 2020
(This article belongs to the Special Issue Numerical Methods and Measurements in Antennas and Propagation)
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 modeled to estimate the heat transfer in breast tumor tissue surrounded by healthy breast tissue. Experimentation was carried out by using the antennas inserted inside sphere-shaped-tumor phantoms with two different diameters, 1.0 and 1.5 cm. A microwave radiation system was used to apply microwave energy to each designed antenna, which were located into the phantom. A non-interfering thermometry system was used to measure the temperature increase during the experimentation. Temperature increases, recorded by the thermal sensors placed inside the tumor phantom surrounded by healthy breast phantom, were used to validate the FEM models. The results conclude that, in all the cases, after 240 s, the three types of coaxial slot antenna reached the temperature needed produce hyperthermia of the tumor volume considered in this paper. View Full-Text
Keywords: microwave ablation; slot-coaxial antennas; finite element method; phantom microwave ablation; slot-coaxial antennas; finite element method; phantom
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MDPI and ACS Style

Ortega-Palacios, R.; Trujillo-Romero, C.J.; Cepeda-Rubio, M.F.J.; Leija, L.; Vera Hernández, A. Heat Transfer Study in Breast Tumor Phantom during Microwave Ablation: Modeling and Experimental Results for Three Different Antennas. Electronics 2020, 9, 535.

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