3 March 2014 Imaging of blood vessels with CCD-camera based three-dimensional photoacoustic tomography
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Abstract
An optical phase contrast full field detection setup in combination with a CCD-camera is presented to record acoustic fields for real-time projection and fast three-dimensional imaging. When recording projection images of the wave pattern around the imaging object, the three-dimensional photoacoustic imaging problem is reduced to a set of two-dimensional reconstructions and the measurement setup requires only a single axis of rotation. Using a 10 Hz pulse laser system for photoacoustic excitation a three dimensional image can be obtained in less than 1 min. The sensitivity and resolution of the detection system was estimated experimentally with 5 kPa mm and 75μm, respectively. Experiments on biological samples show the applicability of this technique for the imaging of blood vessel distributions.
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Robert Nuster, Paul Slezak, Guenther Paltauf, "Imaging of blood vessels with CCD-camera based three-dimensional photoacoustic tomography", Proc. SPIE 8943, Photons Plus Ultrasound: Imaging and Sensing 2014, 894357 (3 March 2014); doi: 10.1117/12.2041734; https://doi.org/10.1117/12.2041734
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