Multi-element transducers for conformal transurethral thermal therapy

Nicole Baker, Alexander Desouza, Jianhua Yin, Aaron Boyes, Marc Lukacs, Rajiv Chopra, Stuart Foster, Michael Bronskill

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

Abstract

Transurethral thermal therapy of the prostate using ultrasound may be used to create a thermal lesion that matches a target volume of tissue while sparing surrounding structures. To produce multiple-element ultrasound transducers for this purpose, a fabrication method of sub-dicing one continuous piece of piezoceramic to isolate individual elements was employed. Finite element modeling was used to determine the required dicing cut width and depth for adequate inter-element isolation. Experimental acoustic measurements were used to evaluate device efficiency and power stability over a range of element widths (2 to 4 mm) and lengths (3 to 30 mm). Efficiencies of 50% or higher and power output suitable for thermal therapy were achievable for all element sizes tested. This method of fabrication and testing is being utilized for evaluation of prototype devices designed for prostate thermal therapy.

Original languageEnglish (US)
Title of host publicationTHERAPEUTIC ULTRASOUND
Subtitle of host publication5th International Symposium on Therapeutic Ultrasound
Pages415-419
Number of pages5
DOIs
StatePublished - May 8 2006
EventTHERAPEUTIC ULTRASOUND: 5th International Symposium on Therapeutic Ultrasound - Boston, MA, United States
Duration: Oct 27 2005Oct 29 2005

Publication series

NameAIP Conference Proceedings
Volume829
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherTHERAPEUTIC ULTRASOUND: 5th International Symposium on Therapeutic Ultrasound
CountryUnited States
CityBoston, MA
Period10/27/0510/29/05

Keywords

  • Prostate
  • Thermal therapy
  • Transurethral
  • Ultrasound
  • Ultrasound transducers

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Multi-element transducers for conformal transurethral thermal therapy'. Together they form a unique fingerprint.

Cite this