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Numerical study of the effect of blood vessel on the microwave ablation shape

Issue title: Frontiers in Biomedical Engineering and Biotechnology – Proceedings of the 4th International Conference on Biomedical Engineering and Biotechnology, 18–21 August 2015, Shanghai, China

Guest editors: Feng Liu, Dong-Hoon Lee, Ricardo Lagoa and Sandeep Kumar

Article type: Research Article

Authors: Nie, Xiaohui | Nan, Qun; * | Guo, Xuemei | Tian, Zhen

Affiliations: College of Life Science and Bioengineering, Beijing University of Technology, Beijing, 100124, China

Correspondence: [*] Address for correspondence: Qun Nan, College of Life Science and Bioengineering, Beijing University of Technology, Beijing, 100124, China. Tel.: +6739 2855; Fax: +6739 2855; E-mail: nanqun@bjut.edu.cn.

Keywords: Microwave ablation, blood vessel, microwave antenna, ablation area

DOI: 10.3233/BME-151313

Journal: Bio-Medical Materials and Engineering, vol. 26, no. s1, pp. S265-S270, 2015

Published: 2015
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The existence of large blood vessels seriously impacts the results of microwave ablation on heat transfer of surrounding tissue, and the research of influences about large blood vessels could be essential and significant. The temperature distribution in the tissue was analyzed with a microwave heating source by finite element method. The model, where the blood vessel is parallel to antenna, has different distances from antenna to blood vessel. As distance was greater than 20mm, the effect of blood vessel that was parallel to antenna was ignored and the ablation area was elliptical-like. When distance was less than 10mm, the part of asymmetrical coagulated area was on the right side of blood vessel. Therefore, the temperature contour by different conditions could provide numerical references, which is whether to block blood vessel or not, to achieve the aim of guiding the clinical practice, according to the locations of tumor and blood vessel.

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