{"title":"一种基于频率可调微波消融的肿瘤局部微创治疗方法","authors":"Li Wang, X. Bao, Yafei Wang, G. Crupi, A. Zhang","doi":"10.1109/MeMeA54994.2022.9856429","DOIUrl":null,"url":null,"abstract":"As a minimally invasive surgery, microwave ablation (MWA) has been widely used in tumor treatment. However, the electromagnetic properties of tissue will change with temperature during operation, which may lead to unstable performance or even failure of the antenna. In this paper, we preliminarily verified the feasibility of improving the stability of microwave ablation antenna by adjusting the frequency. Experimental results show that the ablation zone is change form 16 mm × 40 mm to 20 mm × 35 mm with frequency adjustment, showing larger and more localized ablation zone. In addition, the $S_{11}$ keeps remaining lower than −10dB during the operation, while the $S_{11}$ at 2.45 GHz without frequency adjustment is expanded to −8.5dB at the end of the experiment.","PeriodicalId":106228,"journal":{"name":"2022 IEEE International Symposium on Medical Measurements and Applications (MeMeA)","volume":"514 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2022-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"A Localized and Minimally Invasive Tumor Treatment Based on a Frequency Adjustable Microwave Ablation Method\",\"authors\":\"Li Wang, X. Bao, Yafei Wang, G. Crupi, A. Zhang\",\"doi\":\"10.1109/MeMeA54994.2022.9856429\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"As a minimally invasive surgery, microwave ablation (MWA) has been widely used in tumor treatment. However, the electromagnetic properties of tissue will change with temperature during operation, which may lead to unstable performance or even failure of the antenna. In this paper, we preliminarily verified the feasibility of improving the stability of microwave ablation antenna by adjusting the frequency. Experimental results show that the ablation zone is change form 16 mm × 40 mm to 20 mm × 35 mm with frequency adjustment, showing larger and more localized ablation zone. In addition, the $S_{11}$ keeps remaining lower than −10dB during the operation, while the $S_{11}$ at 2.45 GHz without frequency adjustment is expanded to −8.5dB at the end of the experiment.\",\"PeriodicalId\":106228,\"journal\":{\"name\":\"2022 IEEE International Symposium on Medical Measurements and Applications (MeMeA)\",\"volume\":\"514 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-06-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2022 IEEE International Symposium on Medical Measurements and Applications (MeMeA)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/MeMeA54994.2022.9856429\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2022 IEEE International Symposium on Medical Measurements and Applications (MeMeA)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MeMeA54994.2022.9856429","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
摘要
微波消融术作为一种微创手术，在肿瘤治疗中得到了广泛的应用。然而，在工作过程中，组织的电磁特性会随着温度的变化而变化，这可能导致天线的性能不稳定甚至失效。本文初步验证了通过调整频率来提高微波消融天线稳定性的可行性。实验结果表明，随着频率的调整，烧蚀区域由16 mm × 40 mm变为20 mm × 35 mm，烧蚀区域更大、更局部化。此外，$S_{11}$在工作过程中一直保持在- 10dB以下，而在2.45 GHz无频率调整时的$S_{11}$在实验结束时扩展到- 8.5dB。
A Localized and Minimally Invasive Tumor Treatment Based on a Frequency Adjustable Microwave Ablation Method
As a minimally invasive surgery, microwave ablation (MWA) has been widely used in tumor treatment. However, the electromagnetic properties of tissue will change with temperature during operation, which may lead to unstable performance or even failure of the antenna. In this paper, we preliminarily verified the feasibility of improving the stability of microwave ablation antenna by adjusting the frequency. Experimental results show that the ablation zone is change form 16 mm × 40 mm to 20 mm × 35 mm with frequency adjustment, showing larger and more localized ablation zone. In addition, the $S_{11}$ keeps remaining lower than −10dB during the operation, while the $S_{11}$ at 2.45 GHz without frequency adjustment is expanded to −8.5dB at the end of the experiment.
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