Patent ID: 7886603

Claim:
An ultrasonic diagnostic apparatus that obtains an ultrasonic image by scanning, by ultrasonic waves, 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 subject; a transmission unit to perform, via said ultrasonic probe, a series of transmissions for a plurality of frames in a first period at a first acoustic pressure, which is an acoustic pressure not to destroy substantially said contrast medium bubbles but to obtain an image of a blood flow circulation, and to perform a series of transmissions for at least one frame in a second period at a second acoustic pressure to destroy said contrast medium bubbles; a control unit to control said transmission unit in such a manner that the transmissions in said first period are performed after the transmissions in said second period are performed; an image generating unit to generate a first image by performing a luminance value holding computation using echo signal of at least two frames obtained through said first period; and a display unit to display said first display image.