Correction of the effects of acoustic heterogeneity on thermoacoustic tomography using transmission ultrasound tomography

Xing Jin; Lihong V. Wang

doi:10.1117/12.645104

6 March 2006 Correction of the effects of acoustic heterogeneity on thermoacoustic tomography using transmission ultrasound tomography

Xing Jin, Lihong V. Wang

Author Affiliations +

Proceedings Volume 6086, Photons Plus Ultrasound: Imaging and Sensing 2006: The Seventh Conference on Biomedical Thermoacoustics, Optoacoustics, and Acousto-optics; 60860W (2006) https://doi.org/10.1117/12.645104
Event: SPIE BiOS, 2006, San Jose, California, United States

Abstract

The effects of acoustic heterogeneities on thermoacoustic tomography (TAT) are examined and corrected. One assumption made in the existing reconstruction algorithms for thermoacoustic tomography is that biological tissue is acoustically homogeneous. In medical imaging applications, this assumption can cause blurring and distortion in the reconstructed images. This degradation of image quality can be compensated for by using an approximate distribution of the acoustic speed in the tissue. A method based on transmission ultrasound tomography, which is compatible with our thermoacoustic imaging setup, is developed to correct those effects. Experiments verify the validity of this method. The technique can be used to improve the image quality of thermoacoustic tomography.

Citation Download Citation

Xing Jin and Lihong V. Wang "Correction of the effects of acoustic heterogeneity on thermoacoustic tomography using transmission ultrasound tomography", Proc. SPIE 6086, Photons Plus Ultrasound: Imaging and Sensing 2006: The Seventh Conference on Biomedical Thermoacoustics, Optoacoustics, and Acousto-optics, 60860W (6 March 2006); https://doi.org/10.1117/12.645104

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