3 March 2017 First steps towards dual-modality 3D photoacoustic and speed of sound imaging with optical ultrasound detection
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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, Robert Nuster, Gerhild Wurzinger, Gerhild Wurzinger, Guenther Paltauf, 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); doi: 10.1117/12.2254799; https://doi.org/10.1117/12.2254799
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