Microwave ablation of ex vivo bovine tissues using a dual slot antenna with a floating metallic sleeve
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Date
2016-11-11
Authors
Nwoye, E. O.
Ibitoye, A. Z.
Aweda, M. A.
Oremosun, A. A.
Anunobi, C. C.
Akanmu, O. N.
Journal Title
Journal ISSN
Volume Title
Publisher
International Journal of Hyperthermia
Abstract
Purpose: To study the efficiency of a dual slot antenna with a floating metallic sleeve on the ablation of different ex vivo bovine tissues.
Materials and methods: COMSOL Multipurpose®version 4.4 (Stockholm, Sweden), which is based on finite element method (FEM), was used to design simulate monopole and dual slot with sleeve antennas, power, specific absorption rate (SAR) temperature and necrosis distributions in the selected tissues were determined using these antennas. Monopole and dual slot with sleeve antennas wee designed simulated constructed and applied in this study based on a semi rigid coaxial cable. Ex vivo experiment were performed on liver, lung, muscle and heart of bovine obtained from a public animal slaughter house. The microwave energy was delivered using a 2.45GHz solid state microwave generator at 40 W for 3, 5 and 10 min. aspect ratio, ablation length and ablation diameter were also determined on ablated tissues and compared with simulated results. Student’s t-test was used to compare the statistically difference between the performance of the two antennas.
Description
Staff publications
Keywords
Different tissues , Microwave ablation , Monopole antenna , Sleeve antenna , Research Subject Categories::TECHNOLOGY::Bioengineering
Citation
Nwoye, E.O [Et...al] (2016). Microwave ablation of ex vivo bovine tissues using a dual slot antenna with a floating metallic sleeve. International Journal of Hyperthermia, Vol.32(8), 923-930pp.