Microwave-induced thermoacoustic tomography using multi-sector scanning
- Creators
- Xu, Minghua
- Ku, Geng
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Wang, Lihong V.
Abstract
A study of microwave-induced thermoacoustic tomography of inhomogeneous tissues using multi-sector scanning is presented. A short-pulsed microwave beam is used to irradiate the tissue samples. The microwave absorption excites time-resolved acoustic waves by thermoelastic expansion. The amplitudes of the acoustic waves are strongly related to locally absorbed microwave-energy density. The acoustic waves may propagate in all spatial directions. A focused ultrasonic transducer is employed to acquire temporal acoustic signals from multiple directions. Each detected signal is converted into a one-dimensional (1D) image along the acoustic axis of the transducer. The cross-sectional images of the tissue samples are calculated by combining all of the 1D images acquired in the same planes.
Additional Information
© 2001 American Association of Physicists in Medicine. Received 26 March 2001; accepted for publication 18 June 2001. This project was sponsored in part by the U.S. Army Medical Research and Materiel Command Grant No. DAMD17-00-1-0455, the National Institutes of Health Grant No. R01 CA71980, the National Science Foundation Grant No. BES-9734491, and Texas Higher Education Coordinating Board Grant No. ARP 000512-0123-1999.Attached Files
Published - Wang_2001p1958.pdf
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Additional details
- Eprint ID
- 74024
- Resolver ID
- CaltechAUTHORS:20170203-111054770
- DAMD17-00-1-0455
- Army Medical Research and Materiel Command
- R01 CA71980
- NIH
- BES-9734491
- NSF
- ARP 000512-0123-1999
- Texas Higher Education Coordinating Board
- Created
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2017-02-03Created from EPrint's datestamp field
- Updated
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2021-11-11Created from EPrint's last_modified field