| 摘要 |
An ultrasonic diagnostic imaging system and method are provided for producing harmonic contrast images with harmonic components produced by the contrast agent with little interference from nonlinear tissue interaction. A method is described for developing predistorted ultrasonic transmit signals, the predistortion of which will be counteracted by the nonlinear effects of tissue and result in substantially linear waveforms at the location of the contrast agent. The echoes returned by the contrast agent will contain nonlinear components resulting from the interaction of a linear waveform with the agent, with reduced nonlinear components from nonlinear tissue effects.
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