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Proceedings Paper

Simultaneous three-dimensional laser-ultrasound and photoacoustic imaging
Author(s): Gerhild Wurzinger; Robert Nuster; Nicole Schmitner; Sibylle Gratt; Günther Paltauf
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Paper Abstract

A purely optical setup for simultaneous photoacoustic (PA) and laser-ultrasound (US) tomography is presented. It is shown that combined imaging can be achieved by using the same laser pulse for photoacoustic generation and for launching a broadband ultrasound pulse from an optically absorbing target. Detection of the laser-generated plane waves that have been scattered at the imaging object and of the photoacoustic signals emitted from the sample is done interferometrically. This way data for PA and US imaging are acquired within one single measurement. Distinction between the signals is possible due to their different times of flight. After data separation, image reconstruction is done using standard back-projection algorithms. The resolution of the setup was estimated and images of a zebra fish are shown, demonstrating the complementary information of the two imaging modalities.

Paper Details

Date Published: 14 June 2013
PDF: 5 pages
Proc. SPIE 8800, Opto-Acoustic Methods and Applications, 880005 (14 June 2013); doi: 10.1117/12.2032959
Show Author Affiliations
Gerhild Wurzinger, Karl-Franzens-Univ. Graz (Austria)
Robert Nuster, Karl-Franzens-Univ. Graz (Austria)
Nicole Schmitner, Univ. of Innsbruck (Austria)
Sibylle Gratt, Karl-Franzens-Univ. Graz (Austria)
Günther Paltauf, Karl-Franzens-Univ. Graz (Austria)

Published in SPIE Proceedings Vol. 8800:
Opto-Acoustic Methods and Applications
Vasilis Ntziachristos; Charles P. Lin, Editor(s)

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