{"title":"Numerical analysis of thin coaxial antennas for microwave coagulation therapy","authors":"K. Saito, Y. Hayashi, H. Yoshimura, K. Ito","doi":"10.1109/APS.1999.789479","DOIUrl":null,"url":null,"abstract":"Microwave coagulation therapy (MCT) has been used for the treatment of small hepatocellular carcinoma (Seki et al. 1994). In the treatment a thin microwave antenna is inserted into the tumor, and the microwave energy heats up the tumor to produce a coagulated region including the cancer cells. We have to heat the cancer cells up to at least 60 /spl deg/C above which the cells are coagulated. Previously, the antenna for MCT has been developed only by experiment and numerical analysis has not been conducted. In this paper, we describe the numerical analysis of the antenna for MCT. During the MCT treatment, the medium properties of the tissue change because the characteristics of the tissue change as the temperature rises. Therefore we should consider this point when analyzing the heating performance of the antenna.","PeriodicalId":391546,"journal":{"name":"IEEE Antennas and Propagation Society International Symposium. 1999 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.99CH37010)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1999-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"12","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Antennas and Propagation Society International Symposium. 1999 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.99CH37010)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/APS.1999.789479","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 12
Abstract
Microwave coagulation therapy (MCT) has been used for the treatment of small hepatocellular carcinoma (Seki et al. 1994). In the treatment a thin microwave antenna is inserted into the tumor, and the microwave energy heats up the tumor to produce a coagulated region including the cancer cells. We have to heat the cancer cells up to at least 60 /spl deg/C above which the cells are coagulated. Previously, the antenna for MCT has been developed only by experiment and numerical analysis has not been conducted. In this paper, we describe the numerical analysis of the antenna for MCT. During the MCT treatment, the medium properties of the tissue change because the characteristics of the tissue change as the temperature rises. Therefore we should consider this point when analyzing the heating performance of the antenna.
微波凝血疗法(MCT)已被用于治疗小肝癌(Seki et al. 1994)。在治疗中，将一根薄薄的微波天线插入肿瘤，微波能量加热肿瘤，产生包括癌细胞在内的凝固区域。我们必须将癌细胞加热到至少60°C以上，细胞就会凝固。在此之前，用于MCT的天线只进行了实验研究，没有进行数值分析。本文对MCT天线进行了数值分析。在MCT处理过程中，组织的介质性质发生变化，因为组织的特性随着温度的升高而变化。因此，在分析天线的发热性能时应考虑到这一点。
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