Time-domain solution of the temperature increase induced by diagnostic ultrasound

Marc Goueygou, John G. Harris, William D. O'Brien

Research output: Contribution to journalConference articlepeer-review

Abstract

In this paper, we present a complete time domain solution to estimate the temperature increase induced by pulsed ultrasonic fields, such as those used in diagnostic applications. Our computational model includes three steps: (1) calculation of the acoustic field, (2) of the rate of heat generation and (3) of the temperature distribution. For step 1 and 3, the acoustic and thermal fields are computed by integrating the known acoustic and thermal Green functions of the homogeneous medium, respectively, over the surface of the transducer and over the volume of interest. For step 2, we derive a new expression for the instantaneous rate of heat generation. Previous expressions gave only the average rate of heat for a single frequency excitation. We finally present computational results of the temperature increase induced by a point source and by a circular focused transducer.

Original languageEnglish (US)
Pages (from-to)1385-1388
Number of pages4
JournalProceedings of the IEEE Ultrasonics Symposium
Volume2
StatePublished - Dec 1 1999
Event1999 IEEE Ultrasonics Symposium - Caesars Tahoe, NV, USA
Duration: Oct 17 1999Oct 20 1999

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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