Evaluation of the soft tissue Thermal Index and the maximum temperature increase for homogeneous and layered tissues

D. S. Ellis, W. D. O'Brien

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

Abstract

Theoretical tissue temperature increases due to focused diagnostic ultrasound fields have been evaluated for both homogeneous and three-layer tissue models. Applying the monopole-source solution, the general acoustic pressure field distribution is obtained for a specific source temporal average power. The axial steadystate temperature increase is calculated by applying the point-source solution of the bio-heat transfer equation to the pressure field distribution. Homogenous and threelayer fetal tissue model examples for 3 MHz for circular source apertures are presented and compared to the Thermal Index of the recently approved Standard for Real-Time Display of Thermal and Mechanical Acoustic Output Indices on Diagnostic Ultrasound Equipment.

Original languageEnglish (US)
Title of host publication1992 Ultrasonics Symposium Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1271-1275
Number of pages5
ISBN (Electronic)0780305620
DOIs
StatePublished - Jan 1 1992
Event1992 Ultrasonics Symposium - Tucson, United States
Duration: Oct 20 1992Oct 23 1992

Publication series

NameProceedings - IEEE Ultrasonics Symposium
Volume1992-October
ISSN (Print)1051-0117

Conference

Conference1992 Ultrasonics Symposium
CountryUnited States
CityTucson
Period10/20/9210/23/92

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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