Ultrasonic diagnostic apparatus and ultrasonic diagnostic method

An ultrasonic diagnostic apparatus comprising:

• an ultrasonic transmission/reception unit configured to transmit a first ultrasonic pulse having a maximum amplitude in a positive pressure, a second ultrasonic pulse having a maximum amplitude in a negative pressure and a third ultrasonic pulse derived by compounding the first ultrasonic pulse with the second ultrasonic pulse into an object in which a contrast medium is injected and obtain a first reception echo, a second reception echo and a third reception echo corresponding to the first ultrasonic pulse, the second ultrasonic pulse and the third ultrasonic pulse respectively;
• and
• an image generating unit configured to generate a compounded signal which is a nonlinear component from the contrast medium by a linear calculation of the first reception echo, the second reception echo and the third reception echo and generate image data of the object by using the compounded signal.