The monopole-source solution for estimating tissue temperature increases for focused ultrasound fields

D. Scott Ellis, William D. O'Brien

Research output: Contribution to journalArticlepeer-review

Abstract

The monopole-source solution to the problem of estimating tissue temperature rise generated by a focused ultrasound beam is presented. The acoustic pressure field generated by a focused, continuous-wave ultrasound source using the acoustic monopole-source method is developed. The point-source solution to the linear bio-heat transfer equation is used to calculate the axial, steady-state temperature increase for both circular and rectangular apertures. The results of the circular aperture are compared with the temperature increase calculated using the heated-disc method and are shown to be in substantial agreement. Finally, the temperature increase generated by the circular aperture is compared to that of the rectangular aperture for the same source power, aperture surface area, operating frequency, and medium properties, and it is shown that the rectangular source generates temperature increases less than those of the circular source under these conditions.

Original languageEnglish (US)
Pages (from-to)88-97
Number of pages10
JournalIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Volume43
Issue number1
DOIs
StatePublished - Dec 1 1996

ASJC Scopus subject areas

  • Instrumentation
  • Acoustics and Ultrasonics
  • Electrical and Electronic Engineering

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