Xu, Minghua and Ku, Geng and Wang, Lihong V. (2001) Microwave-induced thermoacoustic tomography using multi-sector scanning. Medical Physics, 28 (9). pp. 1958-1963. ISSN 0094-2405. doi:10.1118/1.1395037. https://resolver.caltech.edu/CaltechAUTHORS:20170203-111054770
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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.
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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. | ||||||||||
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Subject Keywords: | microwave; thermoacoustics; tomography; imaging; sector; scan | ||||||||||
Issue or Number: | 9 | ||||||||||
DOI: | 10.1118/1.1395037 | ||||||||||
Record Number: | CaltechAUTHORS:20170203-111054770 | ||||||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20170203-111054770 | ||||||||||
Official Citation: | Xu, M., Ku, G. and Wang, L. V. (2001), Microwave-induced thermoacoustic tomography using multi-sector scanning. Med. Phys., 28: 1958–1963. doi:10.1118/1.1395037 | ||||||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||
ID Code: | 74024 | ||||||||||
Collection: | CaltechAUTHORS | ||||||||||
Deposited By: | Tony Diaz | ||||||||||
Deposited On: | 03 Feb 2017 20:42 | ||||||||||
Last Modified: | 11 Nov 2021 05:24 |
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