First steps towards dual-modality 3D photoacoustic and speed of sound imaging with optical ultrasound detection

Robert Nuster; Gerhild Wurzinger; Guenther Paltauf

doi:10.1117/12.2254799

3 March 2017 First steps towards dual-modality 3D photoacoustic and speed of sound imaging with optical ultrasound detection

Robert Nuster, Gerhild Wurzinger, Guenther Paltauf

Author Affiliations +

Proceedings Volume 10064, Photons Plus Ultrasound: Imaging and Sensing 2017; 100640W (2017) https://doi.org/10.1117/12.2254799
Event: SPIE BiOS, 2017, San Francisco, California, United States

Abstract

CCD camera based optical ultrasound detection is a promising alternative approach for high resolution 3D photoacoustic imaging (PAI). To fully exploit its potential and to achieve an image resolution <50 μm, it is necessary to incorporate variations of the speed of sound (SOS) in the image reconstruction algorithm. Hence, in the proposed work the idea and a first implementation are shown how speed of sound imaging can be added to a previously developed camera based PAI setup. The current setup provides SOS-maps with a spatial resolution of 2 mm and an accuracy of the obtained absolute SOS values of about 1%. The proposed dual-modality setup has the potential to provide highly resolved and perfectly co-registered 3D photoacoustic and SOS images.

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Robert Nuster, Gerhild Wurzinger, and Guenther Paltauf "First steps towards dual-modality 3D photoacoustic and speed of sound imaging with optical ultrasound detection", Proc. SPIE 10064, Photons Plus Ultrasound: Imaging and Sensing 2017, 100640W (3 March 2017); https://doi.org/10.1117/12.2254799

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