ACOUSTIC WAVE PROCESSING DEVICE, SIGNAL PROCESSING METHOD FOR ACOUSTIC WAVE PROCESSING DEVICE, AND PROGRAM

摘要

The acoustic wave processing device includes a phasing addition unit which performs phasing addition on respective pieces of first element data with different elements as a reference to generate a plurality of pieces of first reception data, a reception data storage unit which stores first reception data, a reception data generation unit which superimposes two or more pieces of first reception data to generate second reception data, and a processing condition setting unit which sets the number of times of superimposition of first reception data. In a cine-reproduction mode, the reception data generation unit superimposes the set number of pieces of first reception data to generate second reception data.

主权项

1. An acoustic wave processing device comprising:
a probe which has a plurality of elements arranged to transmit an acoustic beam, to receive an acoustic echo reflected from an object to be inspected, and to output an analog element signal according to the received acoustic echo; a transmission unit which uses two or more elements among the plurality of elements as a transmission element and makes the probe transmit the acoustic beam multiple times so as to form a predetermined transmission focal point; a reception unit which receives an acoustic echo corresponding to each transmission of the acoustic beam with two or more elements among the plurality of elements as a reception element, receives analog element signals output from the reception elements, and performs predetermined processing on the analog element signals; an A/D conversion unit which performs A/D conversion on the analog element signals processed by the reception unit to convert the analog element signals to first element data as a digital element signal; a phasing addition unit which performs phasing addition on the respective pieces of first element data with at least two elements as a reference to generate at least two pieces of first reception data for each piece of first element data; a reception data storage unit which stores a plurality of pieces of first reception data generated in the phasing addition unit; a data acquisition unit which reads two or more pieces of first reception data from the plurality of pieces of first reception data stored in the reception data storage unit; a reception data generation unit which superimposes the two or more pieces of first reception data read by the data acquisition unit to generate second reception data; a processing condition setting unit which sets the number of pieces of first reception data for use when generating the second reception data in the reception data generation unit; and a mode switching unit which switches between a measurement mode for performing transmission and reception of the acoustic wave and reproducing an image based on the received acoustic echo and a cine-reproduction mode for generating and reproducing an image using the plurality of pieces of first reception data stored in the reception data storage unit without performing transmission and reception of the acoustic wave, wherein, in the cine-reproduction mode, the data acquisition unit reads the first reception data, the number of pieces of which is set by the processing condition setting unit, from the reception data storage unit, and the reception data generation unit superimposes the read first reception data to generate the second reception data.