Proposal for the application of microwave ablation as a treatment for breast cancer using interstitial applicators: Antenna design and FEM modeling

Lara, Jaime E.; Vera, A.; Leija, L.

doi:10.1109/gmepe-pahce.2016.7504620

Cited by 3 publications

(4 citation statements)

References 8 publications

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“…In the last 10 years, our research group has been working on the development of micro-coaxial antennas to treat breast cancer [28][29][30][31][32][33]. Recently, a new double "short distance" antenna was developed and tested [32].…”

Section: Antenna Designmentioning

confidence: 99%

“…The diameters of the antennas, based on a semi-rigid, micro-coaxial commercial cable, were: 0.51 mm for the central conductor, 1.6 mm for the dielectric, 2.20 mm for the outer conductor, and 2.58 mm for the catheter; the antennas have a length of 11 cm and a 1 mm length slot. All the antennas were previously modeled and optimized [28][29][30][31][32][33]. In the case of the single slot antenna, the slot is located at 3.69 mm from the distal section, as described in Figure 1a.…”

Section: Antenna Designmentioning

confidence: 99%

“…The SWR of this antenna, when healthy and breast tumor tissues were irradiated, was 2.9 according to the design [34]. For the double were previously modeled and optimized [28][29][30][31][32][33]. In the case of the single slot antenna, the slot is located at 3.69 mm from the distal section, as described in Figure 1a.…”

Section: Antenna Designmentioning

confidence: 99%

“…In 2016, an applicator was designed, with one slot but with dimensions of 1.5 mm in diameter, a smaller diameter than the previous designs. This applicator was tested in murine models, obtaining very promising results [30].…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2020

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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.

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