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Multi-bandwidth image reconstruction in photoacoustic tomography

Chou, Cheng-Ying and Anastasio, Mark A. and Zhang, Jin and Ku, Geng and Yang, Xinmai and Wang, Lihong V. (2008) Multi-bandwidth image reconstruction in photoacoustic tomography. In: Photons Plus Ultrasound: Imaging and Sensing 2008: The Ninth Conference on Biomedical Thermoacoustics, Optoacoustics, and Acousto-optics. Proceedings of SPIE. No.6856. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 68561G. ISBN 9780819470317. https://resolver.caltech.edu/CaltechAUTHORS:20180921-100904263

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Abstract

Photoacoustic tomography (PAT), also referred to optoacoustic tomography, is a hybrid imaging technique that combines an optical contrast mechanism and ultrasonic detection principles. The laser-induced photoacoustic signals in PAT are broadband in nature, but only a bandpass approximation of the signal is recorded by use of a conventional ultrasonic transducers due to its limited bandwidth. To circumvent this, a PAT system has been developed that records photoacoustic signals by use of multiple ultrasonic transducers that possess different central frequencies. In this work, we investigate a sensor fusion methodology for combining the multiple measurements to obtain an estimate of the true photoacoustic signal that is superior to that obtainable by use of any single transducer measurement. From the estimated photoacoustic signals, three-dimensional images of the optical absorption distribution are reconstructed and are found to possess improved accuracy and statistical properties as compared to the single transducer case. Preliminary computer-simulation studies are presented to demonstrate and investigate the proposed method.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.764127DOIArticle
ORCID:
AuthorORCID
Anastasio, Mark A.0000-0002-3192-4172
Wang, Lihong V.0000-0001-9783-4383
Additional Information:© 2008 Society of Photo-Optical Instrumentation Engineers (SPIE).
Subject Keywords:photoacoustic tomography, sensor fusion
Series Name:Proceedings of SPIE
Issue or Number:6856
Record Number:CaltechAUTHORS:20180921-100904263
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20180921-100904263
Official Citation:Cheng-Ying Chou, Cheng-Ying Chou, Mark A. Anastasio, Mark A. Anastasio, Jin Zhang, Jin Zhang, Geng Ku, Geng Ku, Xinmai Yang, Xinmai Yang, Lihong V. Wang, Lihong V. Wang, } "Multi-bandwidth image reconstruction in photoacoustic tomography", Proc. SPIE 6856, Photons Plus Ultrasound: Imaging and Sensing 2008: The Ninth Conference on Biomedical Thermoacoustics, Optoacoustics, and Acousto-optics, 68561G (28 February 2008); doi: 10.1117/12.764127; https://doi.org/10.1117/12.764127
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:89853
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:21 Sep 2018 23:20
Last Modified:03 Oct 2019 20:19

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