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In high-frequency ultrasound (HFUS) imaging systems usually mechanically moved single-element fixed-focus transducers are used, and a water path between transducer and the object (tissue area) is required. The speed of sound (SoS) differences of water and tissue causes beam refraction at the boundary. When applying spatial compounding by superposition of B-mode images obtained from different angles...
For ultrasound imaging of small animals often standard systems for human medicine or special high frequency ultrasound systems are used. The former are limited to frequencies below 15 MHz, and therefore their spatial resolution often is not sufficient. High-frequency ultrasound (HFUS) imaging systems working at frequencies up to 40 MHz offer a rather high resolution, but high ultrasound frequencies...
Ultrasound spatial compounding has been proven to successfully improve the image contrast, to achieve a more isotropic resolution and to reduce imaging artifacts in comparison with conventional B-mode imaging. For high- frequency ultrasound (HFUS) imaging of skin, usually linear scans only are performed perpendicularly to the axial direction of sound propagation. In this paper the potential of HFUS...
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