Speed of sound and photoacoustic imaging with an optical camera based ultrasound detection system

Robert Nuster; Guenther Paltauf

doi:10.1117/12.2286029

1 August 2017 Speed of sound and photoacoustic imaging with an optical camera based ultrasound detection system

Robert Nuster, Guenther Paltauf

Proceedings Volume 10415, Opto-Acoustic Methods and Applications in Biophotonics III; 1041508 (2017) https://doi.org/10.1117/12.2286029
Event: European Conferences on Biomedical Optics, 2017, Munich, Germany

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.

Citation Download Citation

Robert Nuster and 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); https://doi.org/10.1117/12.2286029

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