Wide-aperture microwave catheter-based cardiac ablation

Author

Rappaport, Carey M. ; Wang, Paul ; Gu, Zeji ; VanderBrink, Brian

Author_Institution

Northeastern Univ., Boston, MA, USA

Volume

1

fYear

1999

fDate

1999

Abstract

This study investigates a novel means of treating cardiac arrhythmias using microwave heating. A catheter-based spiral antenna, approximately one wavelength in circumference, produces wide, deep ablation in in vivo cardiac tissue. The spiral antenna is designed to be inserted transluminally, in a straightened state, and then released to re-form when in position within the heart. A balloon inflated with electrically non-conducting fluid surrounds the spiral to direct power forward into the cardiac tissue, and to prevent surface overheating

Keywords

biomedical equipment; cardiology; hyperthermia; microwave antennas; microwave heating; balloon inflation; cardiac arrhythmias treatment method; catheter-based spiral antenna; electrically nonconducting fluid; focused heating; heart; medical instrumentation; straightened state; surface overheating prevention; transluminally-inserted antenna; wide-aperture microwave catheter-based cardiac ablation; Antenna feeds; Applicators; Cardiac tissue; Catheters; Electromagnetic heating; Heart; Lesions; Radio frequency; Spirals; Temperature control;

fLanguage

English

Publisher

ieee

Conference_Titel

[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint

Conference_Location

Atlanta, GA

ISSN

1094-687X

Print_ISBN

0-7803-5674-8

Type

conf

DOI

10.1109/IEMBS.1999.802391

Filename

802391