Photoacoustic imaging using acoustic reflectors to enhance planar arrays

Robert Ellwood; Edward Zhang; Paul Beard; Ben Cox

doi:10.1117/1.JBO.19.12.126012

23 December 2014 Photoacoustic imaging using acoustic reflectors to enhance planar arrays

Robert Ellwood, Edward Zhang, Paul Beard, Ben Cox

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Journal of Biomedical Optics, Vol. 19, Issue 12, 126012 (December 2014). https://doi.org/10.1117/1.JBO.19.12.126012

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.

CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Robert Ellwood, Edward Zhang, Paul Beard, and Ben Cox "Photoacoustic imaging using acoustic reflectors to enhance planar arrays," Journal of Biomedical Optics 19(12), 126012 (23 December 2014). https://doi.org/10.1117/1.JBO.19.12.126012

Published: 23 December 2014

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