Comparative Study of Minimally Invasive Microwave Ablation Applicators

被引：0

作者：

Karkanis, Nikolaos ^{[1
]}

Kaifas, Theodoros N. F. ^{[1
]}

Samaras, Theodoros ^{[2
]}

Kyriacou, George A. ^{[1
]}

机构：

[1] Democritus Univ Thrace, Dept Elect & Comp Engn, Xanthi 67100, Greece

[2] Aristotle Univ Thessaloniki, Dept Phys, Thessaloniki 54124, Greece

来源：

APPLIED SCIENCES-BASEL | 2025年 / 15卷 / 04期

关键词：

microwave ablation; Specific Absorption Rate (SAR); temperature distribution; ablation zone; aspect ratio; EX-VIVO; IN-VIVO; ANTENNA DESIGNS; COAXIAL ANTENNA; SLOT ANTENNA; TISSUE; LIVER; RADIOFREQUENCY; CHOKE; ZONES;

D O I：

10.3390/app15042142

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This work presents a comparative analysis of microwave ablation applicators, including both antenna-based and open waveguide designs, which are guided and inserted into tumors via catheters. Applicators previously proposed in the literature are evaluated through both electromagnetic and thermal simulations. The objective is to assess temperature distribution within the tumor and surrounding healthy tissues; with a focus on identifying patterns of heat diffusion. Although a variety of applicators have been designed, each typically operates at different central frequency or targets specific tumor shapes and tissue types. In this study, we standardize conditions by analyzing multiple applicators' designs for the same tumor type. The results highlight the shape of the ablation zone and corresponding temperature distribution, offering insights into potential healthy tissue damage. This comparative analysis provides critical information for optimizing microwave ablation applicators for more precise and effective treatment.

引用

页数：22

共 52 条

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