Non-invasive spatio-temporal temperature estimation using diagnostic ultrasound

Ralf Seip, Philip VanBaren, Claudio Simon, Emad S. Ebbini

Research output: Contribution to journalConference articlepeer-review

21 Scopus citations

Abstract

A method for non-invasively estimating tissue temperatures using 2D diagnostic ultrasound imaging arrays is presented in this paper. It is based on a linear relationship between the apparent speckle pattern displacements and temperature, as seen on acquired A-lines when the sample is heated by external heating fields. The proportionality constant between speckle displacement and temperature is determined by the differential change in the speed of sound due to temperature and the linear coefficient of thermal expansion of the material. Accurate estimation of the displacements and proportionality constant translates into accurate, calibrated, high-resolution (2 mm spatial, sub-°C) non-invasive 2D spatio-temporal sample temperature estimates. The mathematical background of this method and experimental results are shown.

Original languageEnglish (US)
Pages (from-to)1613-1616
Number of pages4
JournalProceedings of the IEEE Ultrasonics Symposium
Volume2
StatePublished - Dec 1 1995
EventProceedings of the 1995 IEEE Ultrasonics Symposium. Part 1 (of 2) - Seattle, WA, USA
Duration: Nov 7 1995Nov 10 1995

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