US 11,717,256 B2
Motion independence in acoustic radiation force impulse imaging
Yassin Labyed, Maple Valley, WA (US); and Liexiang Fan, Sammamish, WA (US)
Assigned to Siemens Medical Solutions USA, Inc., Malvern, PA (US)
Filed by Siemens Medical Solutions USA, Inc., Malvern, PA (US)
Filed on Jan. 8, 2016, as Appl. No. 14/991,635.
Prior Publication US 2017/0196533 A1, Jul. 13, 2017
Int. Cl. A61B 8/08 (2006.01); G01S 7/52 (2006.01)
CPC A61B 8/08 (2013.01) [A61B 8/485 (2013.01); A61B 8/5276 (2013.01); G01S 7/52022 (2013.01); G01S 7/52042 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method for motion independent acoustic radiation force impulse imaging, the method comprising:
transmitting, with an ultrasound scanner, an acoustic radiation force impulse into tissue of a patient along a first line;
detecting, with the ultrasound scanner, displacements of the tissue generated in response to the transmitting with four or more receive beams at four or more locations, respectively, along each of four or more tracking lines, respectively, spaced from the first line, the detecting for each of the four or more locations repeated multiple times;
for each of the multiple times, locating a greatest of the displacements of the four or more locations by comparison of the displacements of the four or more locations;
calculating a velocity of a wave caused by the transmitting, the velocity being calculated as a function of the greatest displacements from the multiple times;
generating an image of the velocity.