Ultrasonic diagnosis apparatus and ultrasonic diagnosis method

An ultrasonic diagnosis method executed by an ultrasonic diagnosis apparatus, comprising:

• transmitting ultrasonic waves to an object, and outputting ultrasonic detection signals after receiving the ultrasonic waves reflected by the object;
• calculating at least one of a reception time and a reception wave at each of the plurality of ultrasonic transducers corresponding to a shallower point of two or more points whose positions along a depth direction of the object are different from each other;
• generating an image at the two or more points, based on a hypothetical sound velocity set in a region including the two or more points and the calculated one of the reception time and the reception wave;
• performing an image analysis of the generated image;
• and
• calculating a local sound velocity in the region including the two or more points, based on a result of the image analysis.

A non-transitory computer-readable medium having embodied thereon instructions which executed by a ultrasonic diagnosis apparatus cause the ultrasonic diagnosis apparatus to perform a method comprising:

• transmitting ultrasonic waves to an object, and outputting ultrasonic detection signals after receiving the ultrasonic waves reflected by the object;
• calculating at least one of a reception time and a reception wave at each of the plurality of ultrasonic transducers corresponding to a shallower point of two or more points whose positions along a depth direction of the object are different from each other;
• generating an image at the two or more points, based on a hypothetical sound velocity set in a region including the two or more points and the calculated one of the reception time and the reception wave;
• performing an image analysis of the generated image;
• and
• calculating a local sound velocity in the region including the two or more points, based on a result of the image analysis.