US 11,998,392 B2
Shear wave elasticity measurement method and shear wave elasticity imaging system
Shuangshuang Li, Shenzhen (CN)
Assigned to Shenzhen Mindray Bio-Medical Electronics Co., Ltd., Shenzhen (CN); and Shenzhen Mindray Scientific Co., Ltd., Shenzhen (CN)
Filed by SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD., Guangdong (CN); and SHENZHEN MINDRAY SCIENTIFIC CO., LTD., Guangdong (CN)
Filed on Nov. 13, 2020, as Appl. No. 17/097,881.
Application 17/097,881 is a continuation of application No. PCT/CN2018/086840, filed on May 15, 2018.
Prior Publication US 2021/0077072 A1, Mar. 18, 2021
Int. Cl. A61B 8/08 (2006.01); A61B 8/00 (2006.01); G01N 29/04 (2006.01)
CPC A61B 8/485 (2013.01) [A61B 8/463 (2013.01); A61B 8/469 (2013.01); A61B 8/5223 (2013.01); A61B 8/54 (2013.01); G01N 29/043 (2013.01); G01N 2291/02827 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A shear wave elasticity measurement method, comprising:
generating a first shear wave at a first position on a boundary of a target area;
generating a second shear wave at a second position on the boundary of the target area, wherein the second position is located on a propagation path of the first shear wave;
transmitting an ultrasound wave to a third position to detect the first shear wave and the second shear wave, and receiving echoes of the ultrasound wave to obtain an echo signal, wherein the third position is located outside the target area and the first shear wave propagates to the third position through the second position;
obtaining a first time when the first shear wave reaches the third position and a second time when the second shear wave reaches the third position according to the echo signal; and
calculating an elasticity parameter of the target area according to a time difference between the first time when the first shear wave reaches the third position and the second time when the second shear wave reaches the third position, and a distance between the first position and the second position.