Wideband transducers for improved control of interstitial heating patterns

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

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 proceeding › Conference contribution

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 language	English (US)
Title of host publication	Proceedings of the IEEE Ultrasonics Symposium
Editors	S.C. Schneider, M. Levy, B.R. McAvoy
Pages	1235-1238
Number of pages	4
Volume	2
State	Published - 2000
Event	2000 IEEE Ultrasonics Symposium - San Juan, Puerto Rico Duration: Oct 22 2000 → Oct 25 2000

Other

Other	2000 IEEE Ultrasonics Symposium
Country/Territory	Puerto Rico
City	San Juan
Period	10/22/00 → 10/25/00

ASJC Scopus subject areas

Engineering(all)

Cite this

@inproceedings{170973c95512434ea063fa81c4339d26,

title = "Wideband transducers for improved control of interstitial heating patterns",

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.",

author = "Rajiv Chopra and Chris Luginbuhl and {Stuart Foster}, F. and Bronskill, {Michael J.}",

year = "2000",

language = "English (US)",

volume = "2",

pages = "1235--1238",

editor = "S.C. Schneider and M. Levy and B.R. McAvoy",

booktitle = "Proceedings of the IEEE Ultrasonics Symposium",

note = "2000 IEEE Ultrasonics Symposium ; Conference date: 22-10-2000 Through 25-10-2000",

}

TY - GEN

T1 - Wideband transducers for improved control of interstitial heating patterns

AU - Chopra, Rajiv

AU - Luginbuhl, Chris

AU - Stuart Foster, F.

AU - Bronskill, Michael J.

PY - 2000

Y1 - 2000

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=0034579301&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034579301&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:0034579301

VL - 2

SP - 1235

EP - 1238

BT - Proceedings of the IEEE Ultrasonics Symposium

A2 - Schneider, S.C.

A2 - Levy, M.

A2 - McAvoy, B.R.

T2 - 2000 IEEE Ultrasonics Symposium

Y2 - 22 October 2000 through 25 October 2000

ER -

Wideband transducers for improved control of interstitial heating patterns

Abstract

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ASJC Scopus subject areas

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