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- W1990682761 abstract "Th is paper presents analyses of non-asymmetry configuration for microwave ablation at 2450 MHz using three-dimensional finite element analyses. Treatment of hepatic cancer often requires removal or destruction. Using coaxial-slot is opened slot at one-side of antenna. We study the characteristics of various slot size and various power for non-asymmetry structure to observe temperature distributions and SAR. The results illustrate that the coaxi- al-slot non-asymmetry structure can be used in mi- crowave ablation for destruction of the cancer cell in the area closed to the very fragile tissue or blood vessel. I. INTRODUCTI ON In hy perthermic oncology, cancer is treated by applying localized heating to the tumor tissue, often in combination with chemotherapy or radiotherapy. Some of the challenges associated with the selective heating of deep-seated tumors without damaging surrounding tissue are, control of heating power and spatial distribution and design and placement of temperature sensors. Among possible heating techniques, RF and microwave heating have attracted much attention from clinical researchers. Microwave coagulation therapy is one such techniques where a thin microwave is inserted into the tumor. The microwave heats up the tumor, producing a coagulation region where temperature above 50°C is reached and the cancer cells are effectively destroyed. In recent years, various types of medical applications of microwaves have been widely investigated. L. Hamada et al. (1) performed an experiment using dipole at 915 MHz, with varying insertion depths, and compared the results with conventional antenna. In 1996, (2) presented new dipole called Cap-choke antenna which was used in an experiment at a frequency of 2.45 GHz (3) and 915 GHz (4). Hurter et al (5) used computer simulation (6) to investigate a new design called tri-axial chocked dipole antenna" @default.
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- W1990682761 date "2011-01-01" @default.
- W1990682761 modified "2023-09-25" @default.
- W1990682761 title "The Effect of Slot Sizes on Non-Asymmetry Slot Antennafor Microwave Coagulation Therapy" @default.
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- W1990682761 doi "https://doi.org/10.7763/ijbbb.2011.v1.35" @default.
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