Patent Document ID: 9161736
Application ID: 13392652
Patent Status: 1

Claim One:
1. An ultrasonic diagnostic apparatus for use with a living tissue, the ultrasonic diagnostic apparatus comprising: an ultrasonic probe which transmits ultrasonic waves to an object and receives a reflected echo signal from the object while being in contact with the object; and an ultrasonic diagnostic system including circuitry, memory and a display, the ultrasonic diagnostic system being programmed to: transmit periodically the ultrasonic waves to the object through the ultrasonic probe, and receive the reflected echo signal and receive the reflection echo signal from the object through the ultrasonic probe, in a process in which a pressing force applied to the object by the ultrasonic probe is changed and a cross-sectional position to transmit or receive ultrasonic waves to or from the object is continuously moved in a short-axis direction of the ultrasonic probe; obtain a displacement of the living tissue between two pieces of RF signal frame data selected from among a plurality of pieces of RF signal frame data captured at a plurality of different cross-sectional positions sequentially received by the ultrasonic probe and selected within a set range of a difference in measurement time, and generate sequentially a plurality of displacement frame data; calculate elasticity information of the living tissue at the cross-sectional position based on the displacement frame data, and generate elasticity frame data sequentially based on the calculated elasticity information; and construct elasticity images sequentially based on the generated elasticity frame data.