1 August 2017 Speed of sound and photoacoustic imaging with an optical camera based ultrasound detection system
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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, Guenther Paltauf, "Speed of sound and photoacoustic imaging with an optical camera based ultrasound detection system", Proc. SPIE 10415, Opto-Acoustic Methods and Applications in Biophotonics III, 1041508 (1 August 2017); doi: 10.1117/12.2286029; https://doi.org/10.1117/12.2286029
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