Patent ID: 7302850

Claim:
An ultrasonic diagnostic apparatus that obtains an ultrasonic image by scanning, by ultrasonic waves, a specific region of a subject injected with contrast medium bubbles, said apparatus comprising: an ultrasonic probe to transmit an ultrasonic wave to said subject and receive an echo signal from said ultrasonic wave; a transmission unit to perform, via said ultrasonic probe, a first ultrasonic transmission for one frame plural times at a first acoustic pressure, which is an acoustic pressure not to destroy said contrast medium bubbles but to obtain an image of a blood flow circulation, and to perform a second ultrasonic transmission at a second acoustic pressure to destroy said contrast medium bubbles; a control unit to control said transmission unit in such a manner that said plural first ultrasonic transmissions and said second ultrasonic transmission are performed alternately; an image generating unit to generate a first display image by performing a luminance value holding computation using echo signals of at least two frames obtained through said plural first ultrasonic transmissions; and a display unit to display said first display image.