10 MHz catheter-based annular array for thermal strain guided intramural cardiac ablations

Douglas N. Stephens, Josquin Foiret, Steven Lucero, Katherine W. Ferrara, Kalyanam Shivkumar, Pierre Khuri-Yakub

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

A yearly global population of well over 100,000 ventricular tachycardia patients could benefit from guided cardiac ablation of otherwise untreatable intramural arrhythmogenic substrates. A guided catheter-based HIFU device used epicardially with a subxiphoid approach is proposed which is placed with electroanatomical mapping. After the HIFU device is positioned, the thermal strain feedback at low intensities can confirm myocardial contact and establish a projected power titration guideline for full HIFU ablation. This PZT based spherical array design is an early adjunct prototype of a fully beam steerable CMUT array design in development at Stanford.

Original languageEnglish (US)
Title of host publication2015 IEEE International Ultrasonics Symposium, IUS 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479981823
DOIs
StatePublished - Nov 13 2015
EventIEEE International Ultrasonics Symposium, IUS 2015 - Taipei, Taiwan, Province of China
Duration: Oct 21 2015Oct 24 2015

Other

OtherIEEE International Ultrasonics Symposium, IUS 2015
CountryTaiwan, Province of China
CityTaipei
Period10/21/1510/24/15

Keywords

  • acoustic heating
  • array
  • dual mode transducers
  • RF
  • thermal strain

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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