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Published July 2002 | Published
Journal Article Open

Exact frequency-domain reconstruction for thermoacoustic tomography. I. Planar geometry

Abstract

We report an exact and fast Fourier-domain reconstruction algorithm for thermoacoustic tomography in a planar configuration assuming thermal confinement and constant acoustic speed. The effects of the finite size of the detector and the finite length of the excitation pulse are explicitly included in the reconstruction algorithm. The algorithm is numerically and experimentally verified. We also demonstrate that the blurring caused by the finite size of the detector surface is the primary limiting factor on the resolution and that it can be compensated for by deconvolution.

Additional Information

© 2002 IEEE. Manuscript received May 15, 2001; revised May 13, 2002. This work was supported in part by the U.S. Army Medical Research and Material Command under Grant DAMD17-00-1-0455, in part by the National Institutes of Health (NIH) under Grant R01 CA71980 and Grant R21 CA83760, in part by the National Science Foundation (NSF) under Grant BES-9734491, and in part by the Texas Higher Education Coordinating Board under Grant ARP 000512-0123-1999.

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August 19, 2023
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