Effect of the antenna slot numbers and position on the performance of microwave ablation

Sabiha Binte Aziz; Md Rejvi Kaysir; Md Jahirul Islam; Torikul Islam; Mahmudur Rahman

Medicine in Novel Technology and Devices (Dec 2023)

Effect of the antenna slot numbers and position on the performance of microwave ablation

Sabiha Binte Aziz,
Md Rejvi Kaysir,
Md Jahirul Islam,
Torikul Islam,
Mahmudur Rahman

Affiliations

Sabiha Binte Aziz: Department of Biomedical Engineering (BME), Khulna University of Engineering & Technology, Khulna-9230, Bangladesh; Photonics Research Group, Department of EEE, Khulna University of Engineering & Technology, Khulna-9230, Bangladesh
Md Rejvi Kaysir: Photonics Research Group, Department of EEE, Khulna University of Engineering & Technology, Khulna-9230, Bangladesh; Department of Electrical and Computer Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Ave, Waterloo, ON, Canada; Corresponding author. Photonics Research Group, Department of EEE, Khulna University of Engineering & Technology, Khulna-9230, Bangladesh.
Md Jahirul Islam: Photonics Research Group, Department of EEE, Khulna University of Engineering & Technology, Khulna-9230, Bangladesh; Corresponding author.
Torikul Islam: Department of Biomedical Engineering (BME), Khulna University of Engineering & Technology, Khulna-9230, Bangladesh; Photonics Research Group, Department of EEE, Khulna University of Engineering & Technology, Khulna-9230, Bangladesh; Department of Biomedical Engineering (BME), New Jersey Institute of Technology, Newark, NJ, USA
Mahmudur Rahman: Department of Electrical and Electronic Engineering, Dhaka University of Engineering & Technology, Gazipur 1707, Bangladesh

Journal volume & issue: Vol. 20
p. 100271

Abstract

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Microwave ablation (MWA) is a type of thermal ablation used for cancer treatment in interventional radiology. To induce localized tissue heating MWA employs electromagnetic waves within the microwave energy spectrum, which is done by the precisely designed antenna. This study substantially emphasizes the design and performance ameliorating of slot (both single and double) antennae and compares the results with conventional monopole antennae in terms of temperature distribution, specific absorption ratio (SAR), and thermal tissue damage rate. The simulation has been done in COMSOL by solving the Bioheat equation along with Maxwell electromagnetic equations using the finite element method. The simulation results reveal that the double-slot antenna has the most accurate and directional heat dissipation for liver tumors as well as the highest tissue damage rate and SAR. The highest SAR was found to be 3500 W/kg and 3350 W/kg at the implant depth of 61 mm and 63 mm for double and single-slot antennae, respectively. In addition, the fastest tissue damage occurred near the upper slot of the double-slot antenna. This study helps to understand the basic design parameters for enhancing single and double-slot antennae performance.

Published in Medicine in Novel Technology and Devices

ISSN: 2590-0935 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Medicine: Medicine (General): Medical technology
Website: https://www.journals.elsevier.com/medicine-in-novel-technology-and-devices

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