Patent ID: 9717477
Date: 2017-08-01
CPC Classifications: A61B,G01S

Claim:
1. An ultrasound diagnostic apparatus that transmits ultrasound pulses to a test subject, from an ultrasound probe provided with plural channels, and obtains an ultrasound image from echo signals being received, comprising, a transmit beamformer configured to set a transmit apodization that defines more than one transmit channels that transmit the ultrasound pulses, among the plural channels, and the transmit focus delays that defines delay time to be given to the ultrasound pulses transmitted from each of the transmit channels in every transmit, a receive beamformer configured to generate a receive beam, from the echo signals received by the plural channels in every transmit, and a signal processor configured to generate a synthetic receive beam on one scanning line, by synthesizing n receive beams and obtain an ultrasound image, wherein n is an integer at least 3 or more, the n receive beams that generate the synthetic receive beam on the one scanning line are generated respectively from the echo signals obtained by n different transmits, at least one out of the n different transmits is a shared transmit that serves as the transmit for another scanning line that is different from the one scanning line, and wherein the transmit beamformer configures the transmit apodization and the transmit focus delays of one transmit having been synthesized, out of the n different transmits, in such a manner as being equal to a synthesis of the transmit apodizations and a synthesis of the transmit focus delays of n−1 transmits to be synthesized.