Antenna Designs for Microwave Tissue Ablation

作者:Fallahi, Hojjatollah;Prakash, Punit 刊名:Critical Reviews in Biomedical Engineering 上传者:魏远



HHS Public Access Author manuscript Crit Rev Biomed Eng. Author manuscript; available in PMC 2019 February 27. Published in final edited form as: Crit Rev Biomed Eng. 2018 ; 46(6): 495–521. doi:10.1615/CritRevBiomedEng.2018028554. Antenna Designs for Microwave Tissue Ablation Fallahi Hojjatollah and Prakash Punit* Department of Electrical and Computer Engineering, Kansas State University, Manhattan, Kansas Abstract Microwave (MW) ablation has emerged as a minimally invasive therapeutic modality and is in clinical use for treatment of unresectable tumors and cardiac arrhythmias, neuromodulation, endometrial ablation, and other applications. Components of image-guided MW ablation systems include high-power MW sources, ablation applicators that deliver power from the generator to the target tissue, cooling systems, energy-delivery control algorithms, and imaging guidance systems tailored to specific clinical indications. The applicator incorporates a MW antenna that radiates MW power into the surrounding tissue. A variety of antenna designs have been developed for MW ablation with the objective of efficiently transferring MW power to tissue, with a radiation pattern well matched to the size and shape of the targeted tissue. Here, we survey advances in percutaneous, endocavitary, and endoscopic antenna designs as an integral element of MW ablation applicators for a diverse set of clinical applications. Keywords microwave ablation; thermal ablation; cancer; antenna desig