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A curved array photoacoustic tomography system for small animal imaging

Aguirre, Andres and Gamelin, John and Maurudis, Anastasios and Huang, Fei and Castillo, Diego and Guo, Puyun and Wang, Lihong V. and Zhu, Quing (2007) A curved array photoacoustic tomography system for small animal imaging. In: Photons Plus Ultrasound: Imaging and Sensing 2007: The Eighth Conference on Biomedical Thermoacoustics, Optoacoustics, and Acousto-optics. Proceedings of SPIE. No.6437. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 64370V. ISBN 9780819465504. https://resolver.caltech.edu/CaltechAUTHORS:20180921-100902760

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Abstract

We have developed and tested a photoacoustic imaging system based on a 128 element curved-phased ultrasonic array, which spans a quarter of a complete circle with a radius of curvature equal to 25mm. The center frequency of the array is 5 MHz with 60% bandwidth. The physical dimensions of the elements are 10x0.3mm (elevation x azimuth) with an elevation focus of 19mm. Earlier we reported acoustic measurements of the axial and lateral resolutions of the system that were limited by the impulse response of the narrowband source used in the test. In this paper we discuss photoacoustic characterization of the system including resolution and sensitivity. The array forms the building block for a 512-element ring designed for complete tomographic imaging of small animals. Imaging results of phantoms will be compared with simulations.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.707548DOIArticle
ORCID:
AuthorORCID
Wang, Lihong V.0000-0001-9783-4383
Additional Information:© 2007 Society of Photo-Optical Instrumentation Engineers (SPIE). We acknowledge support from NIH R01 NS46214.
Funders:
Funding AgencyGrant Number
NIHR01 NS46214
Subject Keywords:Photoacoustic, optoacoustic, thermoacoustic, tomography, imaging
Series Name:Proceedings of SPIE
Issue or Number:6437
Record Number:CaltechAUTHORS:20180921-100902760
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20180921-100902760
Official Citation:Andres Aguirre, Andres Aguirre, John Gamelin, John Gamelin, Anastasios Maurudis, Anastasios Maurudis, Fei Huang, Fei Huang, Diego Castillo, Diego Castillo, Puyun Guo, Puyun Guo, Lihong V. Wang, Lihong V. Wang, Quing Zhu, Quing Zhu, } "A curved array photoacoustic tomography system for small animal imaging", Proc. SPIE 6437, Photons Plus Ultrasound: Imaging and Sensing 2007: The Eighth Conference on Biomedical Thermoacoustics, Optoacoustics, and Acousto-optics, 64370V (13 February 2007); doi: 10.1117/12.707548; https://doi.org/10.1117/12.707548
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:89838
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:24 Sep 2018 15:39
Last Modified:03 Oct 2019 20:19

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