Ultrasonic diagnostic apparatus and ultrasonic diagnostic method

摘要

An ultrasonic diagnostic apparatus comprises a first reception echo obtaining unit, a second reception echo obtaining unit, a reception echo combining unit, and an image generating unit. The first reception echo obtaining unit transmits a plurality of ultrasonic pulses having frequency spectra different from one another to an object, and obtains each of reception echoes corresponding to the plurality of ultrasonic pulses. The second reception echo obtaining unit transmits an ultrasonic pulse having the same frequency component characteristics as an combined pulse obtained by combining the plurality of ultrasonic pulses, and to obtain an reception echo. The reception echo combining unit combines the reception echoes obtained by the first reception echo obtaining unit and the reception echo obtained by the second reception echo obtaining unit to generate a combined signal. The image generating unit generates an image of echoes reflected from the object on the basis of the combined signal.

主权项

1. An ultrasonic diagnostic apparatus, comprising:
an ultrasonic probe; a transmitter/receiver configured to transmit, after a contrast medium is injected to an object, by the ultrasonic probe, a first ultrasonic pulse and a second ultrasonic pulse that have different center frequency from each other, and a third ultrasonic pulse that has corresponding frequency component characteristics resulting from a combined pulse obtained by combining the first and second ultrasonic pulses, wherein the first, second, and third ultrasonic pulses are transmitted to the object one after another, and to receive, by the ultrasonic probe, each of reception echoes corresponding to the ultrasonic pulses; a signal processor configured to process the reception echoes corresponding to the first, second, and third ultrasonic pulses, and to generate a processed signal; and an image generating processor configured to generate a contrast image by use of the processed signal.