| 摘要 |
An ultrasonic diagnostic apparatus includes: a transmitting section for driving a probe to send out ultrasonic waves toward a subject one after another; a receiving section for getting an echo, produced as a result of reflection of each ultrasonic wave from the subject, received by the probe, thereby generating a received signal; a tissue tracking section for generating position tracking waveforms, each representing the positional displacement of an associated one of measuring points on the subject, based on the received signals; a boundary detecting section for determining the boundary location of the subject's tissue; a tracking waveform choosing section for choosing at least two position tracking waveforms, including the one associated with the boundary, from the position tracking waveforms by reference to at least one of the waveforms associated with the measuring points, the location of the boundary, and the amplitudes of the received signals; and a tissue attribute value calculating section for calculating a tissue attribute value of the subject using the position tracking waveforms chosen.
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