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Paper Count: 30075
Coaxial Helix Antenna for Microwave Coagulation Therapy in Liver Tissue Simulations
Abstract:This paper is concerned with microwave (MW) ablation for a liver cancer tissue by using helix antenna. The antenna structure supports the propagation of microwave energy at 2.45 GHz. A 1½ turn spiral catheter-based microwave antenna applicator has been developed. We utilize the three-dimensional finite element method (3D FEM) simulation to analyze where the tissue heat flux, lesion pattern and volume destruction during MW ablation. The configurations of helix antenna where Helix air-core antenna and Helix Dielectric-core antenna. The 3D FEMs solutions were based on Maxwell and bio-heat equations. The simulation protocol was power control (10 W, 300s). Our simulation result, both helix antennas have heat flux occurred around the helix antenna and that can be induced the temperature distribution similar (teardrop). The region where the temperature exceeds 50°C the microwave ablation was successful (i.e. complete destruction). The Helix air-core antenna and Helix Dielectric-core antenna, ablation zone or axial ratios (Widest/length) were respectively 0.82 and 0.85; the complete destructions were respectively 4.18 cm3 and 5.64 cm3
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1111955Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1416
 W. Yang, M. Alexander, N. Rubert, A. Ingle, M. Lubner, T. Ziemlewicz, J.L. Hinshaw, F.T. Lee Jr, J.A. Zagzebski1 and T. Varghese1, “Monitoring Microwave Ablation for Liver Tumors with Electrode Displacement Strain Imaging,” IEEE International Ultrasonics Symposium Proceedings, 2014, pp. 1128-1131
 D. C. Sabiston and C. M. Townsend, Sabiston textbook of surgery: the biological basis of modern surgical practice, 19th ed. Philadelphia, PA: Elsevier/Saunders, 2012.
 S.N. Goldberg, G.S. Gazelle, and P.R. Mueller, “Thermal ablation therapy for focal malignancy: a unified approach to underlying principles, techniques, and diagnostic imaging guidance,” Am. J. Roentgenol., vol. 174, n. 2, pp. 323–331, 2000.
 K. Saito, Y. Hayashi, H. Yoshmura, and K. Ito, “Numerical analysis of thin coaxial antennas for microwave coagulation therapy,” in Proc. IEEE Antennas Propagation Soc. Int. Symp., vol. 2, 1999, pp. 992–995.
 W. Hurter, F. Reinbold, and W. J. Lorenz, “A dipole antenna for interstitial microwave hyperthermia,” IEEE Trans. Microw. Theory Tech., vol. 39, no. 6, pp. 1048–1054, Jun. 1991.
 S. Labonte, A. Blais, S. R. Legault, H. O. Ali, and L. Roy, “Monopole antennas for microwave catheter ablation,” IEEE Trans. Microw. Theory Tech., vol. 44, no. 10, pp. 1832–1840, Oct. 1996.
 S. Pisa, M. Cavagnaro, P. Bernardi, and J. C. Lin, “A 915-MHz antenna for microwave thermal ablation treatment: physical design, computer modeling and experimental measurement,” IEEE Trans. Biomed. Eng., vol. 48, no. 5, pp. 599–601, May 2001.
 M. Chaichanyut and S. Tungjitkusolmun, “FEM Modeling for Performance Evaluation of Microwave Ablation Applicator When Using T Prong Monopole Antennas,” 7th World Congress on Bioengineering 2015, IFMBE Proceedings 52, 2015, pp. 114-117 6-8 July 2015
 Y. Rabin and A. Shitzer, “Numerical solution of the multidimensional freezing problem during cryosurgery,” J. Biomechanical Eng., vol. 120, no. 1, pp. 32–37, Feb. 1998.
 K. Saito, Y. Hayashi, H. Yoshimura and K. Ito, ‘Heating characteristics of array applicator composed of two coaxial-slot antennas for microwave coagulation therapy’, IEEE Trans. Microwave Theory and Tech., 48, pp.1800–1806,2000
 D. Haemmerich, S T. Staelin, J Z. TSAI, S. Tungjitkusolmun, D.M. Mahvi, and J. G. Webster ‘In vivo electrical conductivity of hepatic tumours,’ Physiol. meas., 24, pp.251-260,2003
 J.D. Kraus and D.A. Flesich, ‘Electromagnetics with applications’, 5th Edition, McGraw-Hill Company, pp. 389-419,1999