A coaxial slot antenna with frequency of 433 MHz for microwave ablation therapies: design, simulation, and experimental research.
Investigation of the structures and properties of antennas is important in the design of microwave ablation (MWA) system. In this study, we studied the performance of the novel tri- and single-slot antennas with frequency of 433 MHz in ex vivo conditions. The dielectric properties of liver tissue un...
| Publicado en: | Medical & Biological Engineering & Computing Vol. 55; no. 11; pp. 2027 - 2037 |
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| Autores principales: | , , , , , |
| Formato: | equations & formulas pictorial research tables/charts Journal Article |
| Publicado: |
Springer Nature
Nov2017
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=125728364&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 125728364 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 01400118 PO0 jtl: Medical & Biological Engineering & Computing issn: 01400118 maglogo: N pubinfo: dt: Nov2017 vid: 55 iid: 11 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 125728364 125728364 144143394 NLM28462497 125728364 10.1007/s11517-017-1651-9 NLM28462497 125728364 ppf: 2027 ppct: 10 formats: fmt: @attributes: type: P tig: atl: A coaxial slot antenna with frequency of 433 MHz for microwave ablation therapies: design, simulation, and experimental research. aug: au: Jiang, Yingxu Zhao, Jinzhe Li, Weitao Yang, Yamin Liu, Jia Qian, Zhiyu affil: Department of Biomedical Engineering , Nanjing University of Aeronautics and Astronautics , Nanjing 210016 China sug: subj: Liver Neoplasms Therapy Equipment Design Microwaves Therapeutic Use Catheter Ablation Methods Liver Pathology Animals Temperature Swine Animal Studies ab: Investigation of the structures and properties of antennas is important in the design of microwave ablation (MWA) system. In this study, we studied the performance of the novel tri- and single-slot antennas with frequency of 433 MHz in ex vivo conditions. The dielectric properties of liver tissue under different thermal coagulation levels were explored, which was beneficial to evaluate ablation condition of tissue and simulate temperature field. Then, the performances of the antennas were analyzed by using numerical method based on finite element method (FEM). It indicated that the present antennas with frequency of 433 MHz could produce a gourd-shaped MWA area with a longer length. Compared to antenna with frequency of 2450 MHz, the designed single-slot antenna could obtain the larger MWA area. In addition, the multiple-point ablations and a larger MWA area could be achieved simultaneously by using the present tri-slot antenna. This study has a potential for the innovative design of MWA antenna for treatment of liver tumor with a large range and a long length. pubtype: Academic Journal doctype: equations & formulas pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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