首页> 美国卫生研究院文献>Computational and Mathematical Methods in Medicine >Computational FEM Model Phantom and Ex Vivo Swine Breast Validation of an Optimized Double-Slot Microcoaxial Antenna Designed for Minimally Invasive Breast Tumor Ablation: Theoretical and Experimental Comparison of Temperature Size of Lesion and SWR Preliminary Data
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Computational FEM Model Phantom and Ex Vivo Swine Breast Validation of an Optimized Double-Slot Microcoaxial Antenna Designed for Minimally Invasive Breast Tumor Ablation: Theoretical and Experimental Comparison of Temperature Size of Lesion and SWR Preliminary Data

机译:计算的有限元模型幻影和体外牛乳腺验证用于微创乳腺消融的优化双槽微同轴天线:温度病变部位和SWR的理论和实验比较初步数据

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摘要

Malignant neoplasms are one of the principal world health concerns and breast cancer is the most common type of cancer in women. Advances in cancer detection technologies allow treating it in early stages; however, it is necessary to develop treatments which carry fewer complications and aesthetic repercussions. This work presents a feasibility study for the use of microwave ablation as a novel technique for breast cancer treatment. A microwave applicator design is also being proposed for this purpose. The coupling of the designed antenna was predicted with computer simulation. The standing wave ratio obtained through simulation was 1.87 and the result of experimental validation was 1.04. The optimized antenna has an optimal coupling (SWR = 1.04) so ablation temperatures can be achieved in a relatively short time using low power. Varying the time and power, the heating pattern can be changed to treat different tumors. However, as some discrepancies are still present, a deeper study of the dielectric properties and their variation with temperature is required.
机译:恶性肿瘤是世界主要关注的健康问题之一,乳腺癌是女性中最常见的癌症。癌症检测技术的进步允许在早期阶段对其进行治疗;然而,有必要开发出较少并发症和美学影响的治疗方法。这项工作提出了使用微波消融作为乳腺癌治疗新技术的可行性研究。为此还提出了一种微波施加器设计。通过计算机仿真可以预测设计天线的耦合。通过仿真获得的驻波比为1.87,实验验证的结果为1.04。经过优化的天线具有最佳的耦合(SWR = 1.04),因此可以在较短的时间内使用低功率实现烧蚀温度。改变时间和功率,可以改变加热方式以治疗不同的肿瘤。但是,由于仍然存在一些差异,因此需要对介电特性及其随温度的变化进行更深入的研究。

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