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Volume 13
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10.3390/app13010026
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Article

Computer Simulations of Dual-Antenna Microwave Ablation and Comparison to Experimental Measurements

by
Jinying Wang
,
Shengyang Huang
,
Hongjian Gao
*,
Ju Liu
,
Yubo Zhang
and
Shuicai Wu
*
Faculty of Environmental and Life Sciences, Beijing University of Technology, Beijing 100124, China
*
Authors to whom correspondence should be addressed.
Appl. Sci. 2023, 13(1), 26; https://doi.org/10.3390/app13010026
Submission received: 14 November 2022 / Revised: 17 December 2022 / Accepted: 17 December 2022 / Published: 20 December 2022
(This article belongs to the Special Issue Recent Advances in Mathematical Modeling of Energy-Based Tumor Ablation)
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Abstract

Single-antenna microwave ablation (MWA) is mainly used to treat small tumors less than 3 cm in diameter. To obtain a larger coagulation zone in a single ablation, a dual-antenna ablation approach was proposed. A three-dimensional finite element method (FEM) simulation model of parallel dual-antennas was developed. Ex vivo experiments at 50 W for 8 min were performed to verify the model. Both the temperature changes in tissue and the size of the coagulation zone were recorded. The effects of dual-antenna spacing, heating power, and blood perfusion on the coagulation zone were analyzed. Fifteen experiments were carried out. The errors between the mean measurements and simulated results at the set temperature points were 1.08 °C, 0.95 °C, and 2.1 °C, respectively. For the same conditions, the blood perfusion of 1.0, 1.5, and 3.0 kg/(m3·s) can result in a reduction in the coagulation volume by 18.4%, 25.4%, and 42.5%. As the spacing increased, the coagulation zone of each antenna started to fuse together later and the resulting integral coagulation zone became larger. Dual-antenna MWA is expected to be used for the treatment of tumors larger than 5 cm in diameter.
Keywords: dual-antenna array; finite element method simulation; tumor ablation; blood perfusion; temperature distribution dual-antenna array; finite element method simulation; tumor ablation; blood perfusion; temperature distribution

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MDPI and ACS Style

Wang, J.; Huang, S.; Gao, H.; Liu, J.; Zhang, Y.; Wu, S. Computer Simulations of Dual-Antenna Microwave Ablation and Comparison to Experimental Measurements. Appl. Sci. 2023, 13, 26. https://doi.org/10.3390/app13010026

AMA Style

Wang J, Huang S, Gao H, Liu J, Zhang Y, Wu S. Computer Simulations of Dual-Antenna Microwave Ablation and Comparison to Experimental Measurements. Applied Sciences. 2023; 13(1):26. https://doi.org/10.3390/app13010026

Chicago/Turabian Style

Wang, Jinying, Shengyang Huang, Hongjian Gao, Ju Liu, Yubo Zhang, and Shuicai Wu. 2023. "Computer Simulations of Dual-Antenna Microwave Ablation and Comparison to Experimental Measurements" Applied Sciences 13, no. 1: 26. https://doi.org/10.3390/app13010026

APA Style

Wang, J., Huang, S., Gao, H., Liu, J., Zhang, Y., & Wu, S. (2023). Computer Simulations of Dual-Antenna Microwave Ablation and Comparison to Experimental Measurements. Applied Sciences, 13(1), 26. https://doi.org/10.3390/app13010026

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