Monopole antennas for microwave catheter ablation
We study the characteristics of various monopole antennas for microwave catheter ablation of the endocardium. The investigation is done with a computer model based on the finite-element method in the frequency domain. Three monopole geometries are considered: open-tip, dielectric-tip, and metal-tip....
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| Veröffentlicht in: | IEEE Transactions on Microwave Theory and Techniques 1996-10, Vol.44 (10), p.1832-1840 |
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| container_issue | 10 |
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| container_title | IEEE Transactions on Microwave Theory and Techniques |
| container_volume | 44 |
| creator | Labonte, S. Blais, A. Legault, S.R. Ali, H.O. Roy, L. |
| description | We study the characteristics of various monopole antennas for microwave catheter ablation of the endocardium. The investigation is done with a computer model based on the finite-element method in the frequency domain. Three monopole geometries are considered: open-tip, dielectric-tip, and metal-tip. Calculations are made for the magnetic field, the reflection coefficient and the power deposition pattern of the antennas immersed in normal saline. The theoretical results are compared with measurements performed on prototypes and good agreement Is obtained. The antenna characteristics suggest that the metal-tip monopole best fulfils the requirements of catheter ablation. The computer model is then used to compare metal-tip monopoles of different dimensions and to determine design trade-offs. |
| doi_str_mv | 10.1109/22.539941 |
| format | Article |
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The investigation is done with a computer model based on the finite-element method in the frequency domain. Three monopole geometries are considered: open-tip, dielectric-tip, and metal-tip. Calculations are made for the magnetic field, the reflection coefficient and the power deposition pattern of the antennas immersed in normal saline. The theoretical results are compared with measurements performed on prototypes and good agreement Is obtained. The antenna characteristics suggest that the metal-tip monopole best fulfils the requirements of catheter ablation. 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The investigation is done with a computer model based on the finite-element method in the frequency domain. Three monopole geometries are considered: open-tip, dielectric-tip, and metal-tip. Calculations are made for the magnetic field, the reflection coefficient and the power deposition pattern of the antennas immersed in normal saline. The theoretical results are compared with measurements performed on prototypes and good agreement Is obtained. The antenna characteristics suggest that the metal-tip monopole best fulfils the requirements of catheter ablation. The computer model is then used to compare metal-tip monopoles of different dimensions and to determine design trade-offs.</description><subject>Antenna measurements</subject><subject>BIOLOGICAL EFFECTS</subject><subject>BIOLOGY AND MEDICINE, APPLIED STUDIES</subject><subject>CARDIOVASCULAR DISEASES</subject><subject>Catheters</subject><subject>COMPUTERIZED SIMULATION</subject><subject>Dielectrics</subject><subject>Finite element methods</subject><subject>Frequency domain analysis</subject><subject>Geometry</subject><subject>HEART</subject><subject>Magnetic field measurement</subject><subject>Microwave antennas</subject><subject>MICROWAVE RADIATION</subject><subject>Reflection</subject><subject>Reflector antennas</subject><subject>THERAPEUTIC USES</subject><subject>THERAPY</subject><issn>0018-9480</issn><issn>1557-9670</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1996</creationdate><recordtype>article</recordtype><recordid>eNqF0T1LBDEQBuAgCp6nha3V2ggWe-Z7k1IOv-DERuuQTSbcyl5ybnKK_96VPWythmEeZmBehM4JXhCC9Q2lC8G05uQAzYgQTa1lgw_RDGOias0VPkYnOb-PLRdYzRB5TjFtUw-VjQVitLkKaag2nRvSl_2EytmyhgJDZdveli7FU3QUbJ_hbF_n6O3-7nX5WK9eHp6Wt6vaMSlKzYL1intgtHXEeh8YwV4HpSBYLJhoW9kC19qHpgEvrZbEM8qd5I310Fg2R5fT3pRLZ7LrCri1SzGCK4ZpRTgezdVktkP62EEuZtNlB31vI6RdNlQxPd6Q_0NJMR5X_guJUIxjrUZ4PcHxUTkPEMx26DZ2-DYEm98oDKVmimK0F5PtAODP7Yc_CjWDMA</recordid><startdate>19961001</startdate><enddate>19961001</enddate><creator>Labonte, S.</creator><creator>Blais, A.</creator><creator>Legault, S.R.</creator><creator>Ali, H.O.</creator><creator>Roy, L.</creator><general>IEEE</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QO</scope><scope>8FD</scope><scope>FR3</scope><scope>P64</scope><scope>7SP</scope><scope>L7M</scope><scope>OTOTI</scope></search><sort><creationdate>19961001</creationdate><title>Monopole antennas for microwave catheter ablation</title><author>Labonte, S. ; Blais, A. ; Legault, S.R. ; Ali, H.O. ; Roy, L.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c365t-3fad84de32bc1addf310d9f88efa0535bb6be499df77ed6a961d324c647ade7a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1996</creationdate><topic>Antenna measurements</topic><topic>BIOLOGICAL EFFECTS</topic><topic>BIOLOGY AND MEDICINE, APPLIED STUDIES</topic><topic>CARDIOVASCULAR DISEASES</topic><topic>Catheters</topic><topic>COMPUTERIZED SIMULATION</topic><topic>Dielectrics</topic><topic>Finite element methods</topic><topic>Frequency domain analysis</topic><topic>Geometry</topic><topic>HEART</topic><topic>Magnetic field measurement</topic><topic>Microwave antennas</topic><topic>MICROWAVE RADIATION</topic><topic>Reflection</topic><topic>Reflector antennas</topic><topic>THERAPEUTIC USES</topic><topic>THERAPY</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Labonte, S.</creatorcontrib><creatorcontrib>Blais, A.</creatorcontrib><creatorcontrib>Legault, S.R.</creatorcontrib><creatorcontrib>Ali, H.O.</creatorcontrib><creatorcontrib>Roy, L.</creatorcontrib><collection>CrossRef</collection><collection>Biotechnology Research Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>OSTI.GOV</collection><jtitle>IEEE Transactions on Microwave Theory and Techniques</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Labonte, S.</au><au>Blais, A.</au><au>Legault, S.R.</au><au>Ali, H.O.</au><au>Roy, L.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Monopole antennas for microwave catheter ablation</atitle><jtitle>IEEE Transactions on Microwave Theory and Techniques</jtitle><stitle>TMTT</stitle><date>1996-10-01</date><risdate>1996</risdate><volume>44</volume><issue>10</issue><spage>1832</spage><epage>1840</epage><pages>1832-1840</pages><issn>0018-9480</issn><eissn>1557-9670</eissn><coden>IETMAB</coden><abstract>We study the characteristics of various monopole antennas for microwave catheter ablation of the endocardium. The investigation is done with a computer model based on the finite-element method in the frequency domain. Three monopole geometries are considered: open-tip, dielectric-tip, and metal-tip. Calculations are made for the magnetic field, the reflection coefficient and the power deposition pattern of the antennas immersed in normal saline. The theoretical results are compared with measurements performed on prototypes and good agreement Is obtained. The antenna characteristics suggest that the metal-tip monopole best fulfils the requirements of catheter ablation. The computer model is then used to compare metal-tip monopoles of different dimensions and to determine design trade-offs.</abstract><cop>United States</cop><pub>IEEE</pub><doi>10.1109/22.539941</doi><tpages>9</tpages></addata></record> |
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| source | IEEE Xplore |
| subjects | Antenna measurements BIOLOGICAL EFFECTS BIOLOGY AND MEDICINE, APPLIED STUDIES CARDIOVASCULAR DISEASES Catheters COMPUTERIZED SIMULATION Dielectrics Finite element methods Frequency domain analysis Geometry HEART Magnetic field measurement Microwave antennas MICROWAVE RADIATION Reflection Reflector antennas THERAPEUTIC USES THERAPY |
| title | Monopole antennas for microwave catheter ablation |
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