Patent ID: 8602995
Filing Date: 2013-12-10
Classification: A61B,G01S

Abstract:
1. An ultrasonic diagnostic apparatus comprising: an ultrasonic probe configured to apply an ultrasonic pulse into a subject so as to take an image of a section including an artifact therein, and configured to receive an ultrasonic echo reflected from the inside of the subject and the artifact to output a received signal indicating the ultrasonic echo; an orthogonal detection device configured to orthogonally detect the received signal outputted from the ultrasonic probe, and configured to calculate a real number component I (I=u(t) cos(φ)) and an imaginary number component Q (Q=u(t) sin(φ)); a phase information calculation device configured to calculate a phase φ(φ=tan a phase difference calculation device configured to calculate a phase difference indicating a change of the phase of the received signal; an artifact extraction device configured to extract a characteristic portion of the artifact with an absolute value of the phase difference higher than a predetermined threshold; and a first visualization signal processing device configured to perform display conversion to the characteristic portion of the artifact, and configured to output an image signal thereof.