Ultrasound diagnosis apparatus
An ultrasound diagnosis apparatus according to an embodiment includes an ultrasound probe including a plurality of transducer elements arranged two-dimensionally. The plurality of transducer elements are a plurality of Row-Column Addressing transducer elements configured so that: when a first ultrasound wave is to be transmitted, the first ultrasound wave is caused to be transmitted from a first transducer element group including a plurality of transducer elements that are arranged in a direction along one axe and are connected in common to one another; when a reflected wave of the first ultrasound wave is to be received, the reflected wave of the first ultrasound wave is caused to be received by a second transducer element group including a plurality of transducer elements that are arranged in a direction along the other axe and are connected in common to one another; when a second ultrasound wave is to be transmitted, the second ultrasound wave is caused to be transmitted from the second transducer element group; and when a reflected wave of the second ultrasound wave is to be received, the reflected wave of the second ultrasound wave is caused to be received by the first transducer element group.
1 . An ultrasound diagnosis apparatus, comprising:
an ultrasound probe including a plurality of transducer elements arranged two-dimensionally; and
processing circuitry configured to generate ultrasound image data based on reception signals obtained by the ultrasound probe and to cause a display to display an ultrasound image based on the ultrasound image data,
wherein
the plurality of transducer elements are a plurality of Row-Column Addressing transducer elements configured so that
when a first ultrasound wave is to be transmitted, the first ultrasound wave is caused to be transmitted from a first transducer element group including a first plurality of transducer elements that are arranged in a first direction along one of two axes intersecting each other and are connected in common to one another,
when a reflected wave of the first ultrasound wave is to be received, the reflected wave of the first ultrasound wave is caused to be received by a second transducer element group including a second plurality of transducer elements that are arranged in a second direction along the other of the two axes and are connected in common to one another,
when a second ultrasound wave is to be transmitted, the second ultrasound wave is caused to be transmitted from the second transducer element group, and
when a reflected wave of the second ultrasound wave is to be received, the reflected wave of the second ultrasound wave is caused to be received by the first transducer element group,
the processing circuitry is further configured to generate the ultrasound image data based on a first reception signal obtained by causing the reflected wave of the first ultrasound wave to be received by the second transducer element group and a second reception signal obtained by causing the reflected wave of the second ultrasound wave to be received by the first transducer element group,
the ultrasound diagnosis apparatus further includes a memory storing therein a trained model configured, in response to receiving an input of a set made up of two or more of the first reception signals delayed and output from two or more of the second transducer element groups and two or more of the second reception signals delayed and output from two or more of the first transducer element groups, to output a signal corresponding to a post-beam-forming signal obtained by performing a beam forming process on reception signals output from a plurality of transducer elements arranged two-dimensionally, and
the processing circuitry is further configured to (1) generate the set made up of the two or more delayed first reception signals and the two or more delayed second reception signals, (2) input the generated set to the trained model, (3) obtain the signal corresponding to the post-beam-forming signal output from the trained model, and (4) generate the ultrasound image data based on the obtained signal corresponding to the post-beam-forming signal.
2 . The ultrasound diagnosis apparatus according to claim 1 , wherein, as the beam forming process, the processing circuitry is further configured to perform a beam forming process by implementing a Minimum Variance (MV) method, an Amplitude and Phase Estimation (APES) method, a Coherence Factor (FC) method, or a Sign Coherence (SCF) method.