A medical ultrasound system was combined with a pulsed laser source to allow optoacoustic imaging. Whereas ultrasound imaging is based on reflection and scattering of an incident acoustic pulse at internal structures, optoacoustics probes optical properties and therefore provides much higher contrast and complementary information. Targeting structures to a depth of a few centimeters, optoacoustics supplies superior contrast and higher spatial resolution compared to conventional ultrasound. The two complementary methods combined in one single device are ideally suited for medical diagnostics.
Key wordsUltrasound Laser-induced ultrasonography Medical diagnostics Doppler
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