CONFERENCE PROCEEDINGS
Advanced Search
Home > Journals > J. Biomed. Opt. > Volume 21 > Issue 8 > Article
Open Access
19 August 2016 Combined photoacoustic, pulse-echo laser ultrasound, and speed-of-sound imaging using integrating optical detection
Gerhild Wurzinger, Robert Nuster, Guenther Paltauf
Author Affiliations +
Journal of Biomedical Optics, Vol. 21, Issue 8, 086010 (August 2016). https://doi.org/10.1117/1.JBO.21.8.086010
Abstract
A purely optical setup for the coregistration of photoacoustic (PA), ultrasound (US), and speed-of-sound (SOS) section images is presented. It extends a previously developed method for simultaneous PA and laser-US (LUS) pulse-echo imaging with a LUS transmission imaging setup providing two-dimensional (2-D) SOS maps. For transmission imaging, the sound waves traversing the investigated object are generated instantaneously by illuminating optically absorbing targets that are arranged at various distances in front of the sample. All signals are recorded by an optical beam which is part of a Mach–Zehnder interferometer that integrates the acoustic field along its path. Due to the cascaded arrangement of LUS sources, a single-recorded signal yields information for a projection of the SOS distribution. After collection of data from all directions, an inverse Radon transform is applied to this set of projections to obtain a 2-D SOS image. The setup is characterized and its performance is tested on phantom experiments. In addition to providing additional contrast, it is also shown that the resolution of the coregistered PA and LUS images can be improved by implementing the knowledge of the SOS distribution in the reconstruction.
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.
Citation Download Citation
Gerhild Wurzinger, Robert Nuster, and Guenther Paltauf "Combined photoacoustic, pulse-echo laser ultrasound, and speed-of-sound imaging using integrating optical detection," Journal of Biomedical Optics 21(8), 086010 (19 August 2016). https://doi.org/10.1117/1.JBO.21.8.086010
Published: 19 August 2016
JOURNAL ARTICLE
 8 PAGES
DOWNLOAD PAPER SAVE TO MY LIBRARY
GET CITATION
Lens.org Logo
CITATIONS
Cited by 13 scholarly publications.
Advertisement
Advertisement
KEYWORDS
Sensors
Acoustics
Signal detection
Ultrasonography
Image resolution
Photoacoustic spectroscopy
Water
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top