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Time-domain reconstruction for thermoacoustic tomography in a spherical geometry

Xu, Minghua and Wang, Lihong V. (2002) Time-domain reconstruction for thermoacoustic tomography in a spherical geometry. IEEE Transactions on Medical Imaging, 21 (7). pp. 814-822. ISSN 0278-0062. doi:10.1109/TMI.2002.801176.

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Reconstruction-based microwave-induced thermoacoustic tomography in a spherical configuration is presented. Thermoacoustic waves from biological tissue samples excited by microwave pulses are measured by a wide-band unfocused ultrasonic transducer, which is set on a spherical surface enclosing the sample. Sufficient data are acquired from different directions to reconstruct the microwave absorption distribution. An exact reconstruction solution is derived and approximated to a modified backprojection algorithm. Experiments demonstrate that the reconstructed images agree well with the original samples. The spatial resolution of the system reaches 0.5 mm.

Item Type:Article
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Wang, Lihong V.0000-0001-9783-4383
Additional Information:© 2002 IEEE. Manuscript received May 15, 2001; revised May 13, 2002. This work was supported in part by the U.S. Army under Medical Research and Material Command under Grant DAMD17-00-1-0455, in part by the National Institutes of Health (NIH) under Grant R01 CA71980, 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.
Funding AgencyGrant Number
Army Medical Research and Materiel CommandDAMD17-00-1-0455
NIHR01 CA71980
Texas Higher Education Coordinating BoardARP 000512-0123-1999
Issue or Number:7
Record Number:CaltechAUTHORS:20160614-100850177
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Official Citation:Minghua Xu and L. V. Wang, "Time-domain reconstruction for thermoacoustic tomography in a spherical geometry," in IEEE Transactions on Medical Imaging, vol. 21, no. 7, pp. 814-822, July 2002. doi: 10.1109/TMI.2002.801176
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:67905
Deposited By: Tony Diaz
Deposited On:14 Jun 2016 19:34
Last Modified:11 Nov 2021 03:56

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