CPC A61B 8/54 (2013.01) [A61B 8/14 (2013.01); A61B 8/4483 (2013.01); A61B 8/461 (2013.01); A61B 8/485 (2013.01); G01S 15/8934 (2013.01)] | 16 Claims |
1. An ultrasound imaging method, comprising:
generating a shear wave in a target tissue which propagates in a region of interest in a shear wave propagation direction;
selecting a plurality of ultrasound transducer groups from multiple ultrasound transducer groups in an ultrasound probe;
determining a number of the plurality of ultrasound transducer groups, a number of focus points, and a focus position and a transmitting aperture of each of the plurality of ultrasound transducer groups, according to a depth and a width of the region of interest in the target tissue, wherein
a depth of the focus position corresponding to each of the plurality of ultrasound transducer groups is greater than the depth of the region of interest, and a width formed by all focus points corresponding to the plurality of ultrasound transducer groups and arranged along the shear wave propagation direction is greater than the width of the region of interest, or
a depth of the focus position corresponding to each of the plurality of ultrasound transducer groups is within a depth range of the region of interest, and a width formed by all focus points corresponding to the plurality of ultrasound transducer groups and arranged along the shear wave propagation direction is greater than the width of the region of interest;
controlling, according to the determined number of the plurality of ultrasound transducer groups, the determined number of focus points, the determined focus position and transmitting aperture of each of the plurality of ultrasound transducer groups, transducers in the plurality of ultrasound transducer groups to transmit, to the target tissue, ultrasound waves that arrive at the corresponding focus points simultaneously, to form a sound field that completely covers the region of interest in the target tissue;
receiving ultrasound echoes of the ultrasound waves from the region of interest to obtain echo information in the region of interest; and
obtaining a shear wave information corresponding to the region of interest according to the echo information.
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