Wideband transducers for improved control of interstitial heating patterns

Rajiv Chopra, Chris Luginbuhl, F. Stuart Foster, Michael J. Bronskill

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

2 Scopus citations

Abstract

The feasibility of using multi-layered transducers for variable frequency interstitial ultrasound thermal therapy was investigated. KLM calculations and experimental measurements evaluated the ability to transmit high intensity ultrasound at multiple frequencies from a single transducer. Heating simulations demonstrated the improved control over lesion depth with this design. Using a quarter wavelength PZT front "mis-matching" layer, two transmission bands at 3.5 and 7.5 MHz were possible, resulting in the ability to control the lesion depth by a factor of 1.5 in tissue.

Original languageEnglish (US)
Title of host publicationProceedings of the IEEE Ultrasonics Symposium
EditorsS.C. Schneider, M. Levy, B.R. McAvoy
Pages1235-1238
Number of pages4
Volume2
StatePublished - 2000
Event2000 IEEE Ultrasonics Symposium - San Juan, Puerto Rico
Duration: Oct 22 2000Oct 25 2000

Other

Other2000 IEEE Ultrasonics Symposium
CountryPuerto Rico
CitySan Juan
Period10/22/0010/25/00

ASJC Scopus subject areas

  • Engineering(all)

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