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Microwave-induced thermoacoustic tomography using multi-sector scanning

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. 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.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1118/1.1395037DOIArticle
http://onlinelibrary.wiley.com/doi/10.1118/1.1395037/abstractPublisherArticle
ORCID:
AuthorORCID
Wang, Lihong V.0000-0001-9783-4383
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.
Funders:
Funding AgencyGrant Number
Army Medical Research and Materiel CommandDAMD17-00-1-0455
NIHR01 CA71980
NSFBES-9734491
Texas Higher Education Coordinating BoardARP 000512-0123-1999
Subject Keywords:microwave; thermoacoustics; tomography; imaging; sector; scan
Issue or Number:9
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:03 Oct 2019 16:33

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