Patent ID: 8550999

Claim:
An ultrasonic diagnostic apparatus comprising: a transmitting microcomputer configured to generate N different drive signals, where N is an integer that is equal to or greater than three, including a first drive signal, to drive a probe that sends out ultrasonic waves toward a subject; a receiving microcomputer configured to receive echoes, which have been produced as a result of reflection of the ultrasonic waves from the subject in response to the N different drive signals, received by the probe and amplifying the respective signals generated, thereby generating a first received echo signal that responds to the first drive signal and N−1 received echo signals; a computer readable storage medium that stores the first received echo signal; an adjusting microcomputer configured to define M different echo regions, where M is an integer that falls within the range of two through N−1, within a measuring range on the acoustic line of the first received echo signal based on a feature quantity of the first received echo signal that is stored in the computer readable storage medium and for determining either the amplification gain to generate the N−1 received echo signals in the receiving microcomputer or the waveforms of the N−1 different drive signals, except the first drive signal, based on the feature quantities of the first received echo signal in the M different echo regions; and a displacement measuring microcomputer configured to measure section for measuring the respective magnitudes of displacement in the M different echo regions based on the N−1 received echo signals.