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.
© 2013 SPIE
PDF ArticleMore Like This
Guenther Paltauf, Gerhild Wurzinger, and Robert Nuster
953917 European Conference on Biomedical Optics (ECBO) 2015
Sibylle Gratt, Klaus Passler, Robert Nuster, and Guenther Paltauf
80900K European Conference on Biomedical Optics (ECBO) 2011
J. Jose, R. Willemink, S. Resink, T. Maalderink, J. C. G van Hespen, T G. van Leeuwen, and S. Manohar
7371_0S European Conference on Biomedical Optics (ECBO) 2009