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A spatial resolution of photoacoustic tomography (PAT) has been limited by the receive frequency significantly lower than that of photoacoustic microscopy. In the present study, an in vivo microcirculation is visualized by a PAT system by using a newly developed spherical array transducer with a center frequency of 10 MHz. Additionally, we propose a novel reconstruction method suppressing the side...
Photoacoustic (PA) imaging is a promising imaging modality to visualize specific living tissues based on the light absorption coefficients without dyeing. In this paper, a real-time PA imaging system with a tunable laser was newly developed with an originally designed spherically curved array transducer. Five different series of experiments were conducted to validate the PA measurement system. The...
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