Ultrasound diagnosis apparatus and method of setting acoustic velocity

Abstract

The invention provides an altrasound diagnosis apparatus and a method of setting acoustic velocity. A acoustic velocity switching and adjusting unit is used adjusted for switching acoustic velocity with a variable range and setting the acoustic velocity at current time point; a reception time delay setting unit is used for calculating the reception time delays corresponding to a plurality of set acoustic velocities which is switched and adjusted and transmitting them successively to a transmission reception unit; an image creating control unit is used for controlling the transmission reception unit by the way of transmitting reception time delay successively, and generating reflection wave data successively by using the adding process of received reception time delays; the image creating control unit is also used for controlling a signal processing unit and a image creating unit respectively by the way of receiving reflection wave data successively, generating B mode data and generating ultrasonic wave images successively; and a display control unit is controlled for successively displaying the ultrasonic wave image generated successively on a monitor.

Description

technical field [0001] This application enjoys the benefit of priority of Japanese Patent Application No. 2009-155477 filed on June 30, 2009 and Japanese Patent Application No. 2010-116259 filed on May 20, 2010, which are incorporated herein by reference the entire content of . [0002] Embodiments of the present invention relate to an ultrasonic diagnostic apparatus and a sound velocity setting method. Background technique [0003] Conventionally, in an ultrasonic diagnostic apparatus, in order to improve the azimuth resolution of an ultrasonic image, a method of converging an ultrasonic transmission beam and a reception beam has been performed. In particular, in an ultrasonic diagnostic apparatus using an ultrasonic probe constituted by electronic scanning type array transducers, an electron convergence method of adding reception signals of each channel by delay time control is used. [0004] However, in the electron convergence method, since the received beam spreads at...

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Problems solved by technology

[0018] However, the above-mentioned prior art is a technique for determining the optimum sound velocity in a specific region from an objective numerical value (comparison value). In some cases, the azimuth resolution of the site that the technician who took the ultrasound image or the person who reads the ultrasound image is focusing on may not be the most suitable value

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