Analysis of a novel expanded tip wire (ETW) antenna for microwave ablation of cardiac arrhythmias

Chiu, HM; Mohan, AS; Weily, AR; Guy, DJR; Ross, DL

Analysis of a novel expanded tip wire (ETW) antenna for microwave ablation of cardiac arrhythmias

Chiu, HM Mohan, AS

Weily, AR Guy, DJR Ross, DL

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Publication Type:: Journal Article
Citation:: IEEE Transactions on Biomedical Engineering, 2003, 50 (7), pp. 890 - 899
Issue Date:: 2003-01-01

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Field	Value	Language
dc.contributor.author	Chiu, HM	en_US
dc.contributor.author	Mohan, AS https://orcid.org/0000-0002-4503-5851	en_US
dc.contributor.author	Weily, AR	en_US
dc.contributor.author	Guy, DJR	en_US
dc.contributor.author	Ross, DL	en_US
dc.date.issued	2003-01-01	en_US
dc.identifier.citation	IEEE Transactions on Biomedical Engineering, 2003, 50 (7), pp. 890 - 899	en_US
dc.identifier.issn	0018-9294	en_US
dc.identifier.uri	http://hdl.handle.net/10453/5842
dc.description.abstract	A novel expanded tip wire (ETW) catheter antenna is proposed for microwave ablation for the treatment of atrial fibrillation (AF). The antenna is designed as an integral part of coaxial cable so that it can be inserted via a 6F catheter. A numerical model based on the rotationally symmetric finite-difference time-domain technique incorporating the generalized perfectly matched layer as the absorbing boundary condition has been utilized to accurately model the interaction between the antenna and the myocardium. Numerical and in-vitro experimental results are presented for specific absorption rate, return loss and heating pattern produced by the antenna. Both numerical modeling and in-vitro experimentation show that the proposed ETW antenna produces a well-defined electric field distribution that provides continuous long and linear lesions for the treatment of AF. © 2003 IEEE.	en_US
dc.relation	http://purl.org/au-research/grants/arc/C49804812
dc.relation.ispartof	IEEE Transactions on Biomedical Engineering	en_US
dc.relation.isbasedon	10.1109/TBME.2003.813541	en_US
dc.subject.classification	Biomedical Engineering	en_US
dc.subject.mesh	Heart Ventricles	en_US
dc.subject.mesh	Animals	en_US
dc.subject.mesh	Cattle	en_US
dc.subject.mesh	Atrial Fibrillation	en_US
dc.subject.mesh	Catheter Ablation	en_US
dc.subject.mesh	Therapy, Computer-Assisted	en_US
dc.subject.mesh	Sensitivity and Specificity	en_US
dc.subject.mesh	Feasibility Studies	en_US
dc.subject.mesh	Reproducibility of Results	en_US
dc.subject.mesh	Equipment Design	en_US
dc.subject.mesh	Radiometry	en_US
dc.subject.mesh	Electrodes	en_US
dc.subject.mesh	Dose-Response Relationship, Radiation	en_US
dc.subject.mesh	Microwaves	en_US
dc.subject.mesh	Computer-Aided Design	en_US
dc.subject.mesh	Hot Temperature	en_US
dc.title	Analysis of a novel expanded tip wire (ETW) antenna for microwave ablation of cardiac arrhythmias	en_US
dc.type	Journal Article
utslib.citation.volume	7	en_US
utslib.citation.volume	50	en_US
utslib.for	0903 Biomedical Engineering	en_US
utslib.for	0801 Artificial Intelligence and Image Processing	en_US
utslib.for	0906 Electrical and Electronic Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Biomedical Engineering
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CHT - Health Technologies
utslib.copyright.status	closed_access
pubs.issue	7	en_US
pubs.publication-status	Published	en_US
pubs.volume	50	en_US

Abstract:

A novel expanded tip wire (ETW) catheter antenna is proposed for microwave ablation for the treatment of atrial fibrillation (AF). The antenna is designed as an integral part of coaxial cable so that it can be inserted via a 6F catheter. A numerical model based on the rotationally symmetric finite-difference time-domain technique incorporating the generalized perfectly matched layer as the absorbing boundary condition has been utilized to accurately model the interaction between the antenna and the myocardium. Numerical and in-vitro experimental results are presented for specific absorption rate, return loss and heating pattern produced by the antenna. Both numerical modeling and in-vitro experimentation show that the proposed ETW antenna produces a well-defined electric field distribution that provides continuous long and linear lesions for the treatment of AF. © 2003 IEEE.

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http://hdl.handle.net/10453/5842