Progress in real-time photoacoustic imaging using optical ultrasound detection

Paltauf, G.; Department Of Physics, Karl-Franzens-University, 8010 Graz, Austria & Nuster, R.; Department Of Physics, Karl-Franzens-University, 8010 Graz, Austria
Optical phase contrast full field detection in combination with a CCD-camera can be used to record acoustic fields. This allows to obtain two-dimensional photoacoustic projection images in real-time. The present work shows an extension of the technique towards full three-dimensional photoacoustic tomography. The reconstruction of the initial three dimensional pressure distribution is a two step process. First of all, projection images of the initial pressure distribution are acquired. This is done by back propagating the...
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