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Photoacoustic Imaging Using Acoustic Reflectors To Enhance Planar Arrays

Ellwood, R; Zhang, E; Beard, P; Cox, B; (2014) Photoacoustic Imaging Using Acoustic Reflectors To Enhance Planar Arrays. Journal Of Biomedical Optics , 19 (12) 10.1117/1.JBO.19.12.126012. Green open access

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Abstract

Planar sensor arrays have advantages when used for photoacoustic imaging: they do not require the imaging target to be enclosed, and they are easier to manufacture than curved arrays. However, planar arrays have a limited view of the acoustic field due to their finite size; therefore, not all of the acoustic waves emitted from a photoacoustic source can be recorded. This loss of data results in artifacts in the reconstructed photoacoustic image. A detection array configuration which combines a planar Fabry–Pérot sensor with perpendicular acoustic reflectors is described and experimentally implemented. This retains the detection advantages of the planar sensor while increasing the effective detection aperture in order to improve the reconstructed photoacoustic image

Type: Article
Title: Photoacoustic Imaging Using Acoustic Reflectors To Enhance Planar Arrays
Open access status: An open access version is available from UCL Discovery
DOI: 10.1117/1.JBO.19.12.126012
Publisher version: http://dx.doi.org/10.1117/1.JBO.19.12.126012
Language: English
Additional information: Copyright © The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License (https://creativecommons.org/licenses/by/3.0/). Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
Keywords: Photoacoustic Imaging; Limited Aperture; Reflectors; Image Reconstruction; Fabry–Perot Ultrasound Sensors
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Med Phys and Biomedical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/1484171
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