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Broadening the detection view of high-frequency linear-array-based photoacoustic computed tomography by using planar acoustic reflectors

Li, Guo and Xia, Jun and Maslov, Konstantin I. and Wang, Lihong V. (2014) Broadening the detection view of high-frequency linear-array-based photoacoustic computed tomography by using planar acoustic reflectors. In: Photons Plus Ultrasound: Imaging and Sensing 2014. Proceedings of SPIE. No.8943. Society of Photo-Optical Instrumentation Engineers , Bellingham, WA, Art. No. 89430H. ISBN 9780819498564. http://resolver.caltech.edu/CaltechAUTHORS:20180912-110305827

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Abstract

Photoacoustic computed tomography (PACT) with a linear transducer array suffers from limited detection view. To increase the detection aperture, it is possible to circularly scan the linear transducer array around the object at the expense of imaging speed. Here we propose an alternative method to double or triple the detection view angle without sacrificing the imaging speed. By using a planar acoustic reflector which creates a virtual linear transducer array, the detection view angle is doubled. Similarly, by using two planar acoustic reflectors placed at 120 degrees to each other, we can form two virtual linear transducer arrays, and the detection view angle is tripled. This paper comparatively studies the two cases. We found that the planar acoustic reflectors greatly increase the detection aperture and thus significantly enhance the image quality of linear-array-base PACT systems.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.2042725DOIArticle
ORCID:
AuthorORCID
Wang, Lihong V.0000-0001-9783-4383
Additional Information:© 2014 Society of Photo-Optical Instrumentation Engineers. This work was sponsored by National Institute of Health (NIH) grants DP1 EB016986 (NIH Director’s Pioneer Award), R01 CA186567 (NIH Director’s Transformative Research Award), R01 EB016963, R01 CA134539, R01 EB010049, R01 CA159959 and 1S10RR026922-01. L.W. has a financial interest in Microphotoacoustics, Inc. and Endra, Inc., which, however, did not support this work. K.M. has a financial interest in Microphotoacoustics, Inc., which did not support this work.
Funders:
Funding AgencyGrant Number
NIHDP1 EB016986
NIHR01 CA186567
NIHR01 EB016963
NIHR01 CA134539
NIHR01 EB010049
NIHR01 CA159959
NIH1S10RR026922-01
Subject Keywords:photoacoustic computed tomography; high frequency; linear transducer array; limited view; acoustic reflector
Record Number:CaltechAUTHORS:20180912-110305827
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20180912-110305827
Official Citation:Guo Li, Guo Li, Jun Xia, Jun Xia, Konstantin I. Maslov, Konstantin I. Maslov, Lihong V. Wang, Lihong V. Wang, } "Broadening the detection view of high-frequency linear-array-based photoacoustic computed tomography by using planar acoustic reflectors ", Proc. SPIE 8943, Photons Plus Ultrasound: Imaging and Sensing 2014, 89430H (3 March 2014); doi: 10.1117/12.2042725; https://doi.org/10.1117/12.2042725
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:89572
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:12 Sep 2018 18:38
Last Modified:12 Sep 2018 18:38

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