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Laser vibrometry is used to assess tissue motions induced by orthogonal-frequency pulses and binary pulses. The tissue motions in a swine liver is induced by ultrasound radiation force and measured by a laser vibrometry. The displacements of tissue motion induced by the orthogonal frequency pulses are higher than that of binary pulses from 3 dB to about 10 dB from 700 Hz to 900 Hz with a reduced excitation...
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