PROBLEM TO BE SOLVED: To quantize a resonant behavior due to a tissue structure and acquire diagnosis information on new tissue properties and the like.;SOLUTION: An ultrasonic diagnostic device 100 includes: a transmission unit 12 for generating a drive signal and outputting the generated drive signal to an ultrasonic probe 2 for transmitting/receiving an ultrasonic wave to/from an arbitrary vibrator of a plurality of vibrators according to the drive signal; a control unit 18 for causing the transmission unit 12 to generate a first drive signal for transmitting an ultrasonic wave of a frequency (f+α) and an ultrasonic wave of a frequency (f-α) simultaneously so as to converge them using a transmission center frequency f and an increase/decrease frequency α; a reception unit 13 for acquiring a first reception signal corresponding to an ultrasonic wave of the first drive signal from the ultrasonic probe 2; and a signal processing unit 15 for generating resonant information on a difference frequency 2α indicating a resonant behavior of a subject from the first reception signal.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2019,JPO&INPIT
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