Real-time two-dimensional temperature imaging using ultrasound.

Annu Int Conf IEEE Eng Med Biol Soc

Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN 55455, USA.

Published: April 2010

AI Article Synopsis

  • A new system has been developed to provide real-time 2D imaging of temperature changes in tissue using pulse-echo ultrasound.
  • The setup uses a SonixRP ultrasound scanner to control the ultrasound beams and access real-time radio frequency (RF) data.
  • The processed temperature data is displayed instantly, enabling immediate feedback for controlling heating sources, with successful tests showing high accuracy in tissue mimicking phantoms and porcine heart tissue.

Article Abstract

We present a system for real-time 2D imaging of temperature change in tissue media using pulse-echo ultrasound. The frontend of the system is a SonixRP ultrasound scanner with a research interface giving us the capability of controlling the beam sequence and accessing radio frequency (RF) data in real-time. The beamformed RF data is streamlined to the backend of the system, where the data is processed using a two-dimensional temperature estimation algorithm running in the graphics processing unit (GPU). The estimated temperature is displayed in real-time providing feedback that can be used for real-time control of the heating source. Currently we have verified our system with elastography tissue mimicking phantom and in vitro porcine heart tissue, excellent repeatability and sensitivity were demonstrated.

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http://dx.doi.org/10.1109/IEMBS.2009.5333444DOI Listing

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