Patent ID: 8079956
Filing Date: 2011-12-20
Classification: A61B,G01S

Abstract:
1. An ultrasonic imaging device comprising: a control unit which sends ultrasonic pulse signals for forming a ultrasonic beam to be directed to an object and receives a received ultrasonic beam formed from the ultrasonic pulse signals reflected from the object; a transmitted ultrasonic beam former which forms a transmitted ultrasonic beam in response to the ultrasonic pulse signals; an ultrasonic probe which receives an output from the transmitted ultrasonic beam former via a transmission/receiving separator and sends the transmitted ultrasonic beam to the object; and a receiving beam former which receives the ultrasonic pulse signals reflected by the object received with the ultrasonic probe via the transmission/receiving separator and forms the received ultrasonic beam; wherein the control unit has a program for synthesizing B-mode image data of the object imaged from a plurality of angular directions against the object and displaying the synthesized image, and executes switching a reference frequency for detection of the received ultrasonic beam between a first value equal to a central frequency of the ultrasonic pulse signals and a second value different from the central frequency to accomplish a changeover between an incoherent synthesis and a coherent synthesis for the received ultrasonic beams for the frames imaged from the plurality of different angular directions.