Published July 2002
| Published
Journal Article
Open
Time-domain reconstruction for thermoacoustic tomography in a spherical geometry
- Creators
- Xu, Minghua
-
Wang, Lihong V.
Abstract
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.
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.Attached Files
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Additional details
- Eprint ID
- 67905
- Resolver ID
- CaltechAUTHORS:20160614-100850177
- Army Medical Research and Materiel Command
- DAMD17-00-1-0455
- NIH
- R01 CA71980
- NSF
- BES-9734491
- Texas Higher Education Coordinating Board
- ARP 000512-0123-1999
- Created
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2016-06-14Created from EPrint's datestamp field
- Updated
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2021-11-11Created from EPrint's last_modified field