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Parallel acoustic delay lines for photoacoustic tomography

Yapici, Murat Kaya and Kim, Chulhong and Chang, Cheng-Chung and Jeon, Mansik and Guo, Zijian and Cai, Xin and Zou, Jun and Wang, Lihong V. (2013) Parallel acoustic delay lines for photoacoustic tomography. In: Photons Plus Ultrasound: Imaging and Sensing 2013. Proceedings of SPIE. No.8581. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 85811C. ISBN 9780819493507.

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Achieving real-time photoacoustic (PA) tomography typically requires massive ultrasound transducer arrays and data acquisition (DAQ) electronics to receive PA waves simultaneously. In this paper, we report the first demonstration of a photoacoustic tomography (PAT) system using optical fiber-based parallel acoustic delay lines (PADLs). By employing PADLs to introduce specific time delays, the PA signals (on the order of a few micro seconds) can be forced to arrive at the ultrasonic transducers at different times. As a result, time-delayed PA signals in multiple channels can be ultimately received and processed in a serial manner with a single-element transducer, followed by single‐channel DAQ electronics. Our results show that an optically absorbing target in an optically scattering medium can be photoacoustically imaged using the newly developed PADL-based PAT system. Potentially, this approach could be adopted to significantly reduce the complexity and cost of ultrasonic array receiver systems.

Item Type:Book Section
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Zou, Jun0000-0002-9543-6135
Wang, Lihong V.0000-0001-9783-4383
Additional Information:© 2013 Society of Photo-Optical Instrumentation Engineers (SPIE).
Subject Keywords:Photoacoustic tomography, acoustic delay line, ultrasound transducer array, real-time imaging
Series Name:Proceedings of SPIE
Issue or Number:8581
Record Number:CaltechAUTHORS:20180917-094549538
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Official Citation:Murat Kaya Yapici, Murat Kaya Yapici, Chulhong Kim, Chulhong Kim, Cheng-Chung Chang, Cheng-Chung Chang, Mansik Jeon, Mansik Jeon, Zijian Guo, Zijian Guo, Xin Cai, Xin Cai, Jun Zou, Jun Zou, Lihong V. Wang, Lihong V. Wang, } "Parallel acoustic delay lines for photoacoustic tomography", Proc. SPIE 8581, Photons Plus Ultrasound: Imaging and Sensing 2013, 85811C (4 March 2013); doi: 10.1117/12.2003289;
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:89673
Deposited By: George Porter
Deposited On:17 Sep 2018 18:18
Last Modified:09 Mar 2020 13:19

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