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Ultrasonic acoustic radiation force excitation for ultrasonic material property measurement and imaging
Ultrasonic acoustic radiation force excitation for ultrasonic material property measurement and imaging
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机译:超声声辐射力激励,用于超声材料性能测量和成像
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摘要
An ultrasonic diagnostic imaging system for shear wave measurement transmits push pulses in the form of a sheet of energy. The sheet of energy produces a shear wavefront which is a plane wave, which does not suffer from the 1/R radial dissipation of push pulse force as does a conventional push pulse generated along a single push pulse vector. The sheet of energy can be planar, curved, or in some other two or three dimensional shape. A curved sheet of energy can produce a shear wave source which focuses into a thin line, which increases the resolution and sensitivity of the measuring techniques used to detect the shear wave effect.
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