Patent ID: 8532430
Filing Date: 2013-09-10
Classification: A61B,G01S

Abstract:
1. A method for reducing motion artifacts in shear wave measurements, comprising: delivering one or more reference pulses to a common motion tracking location and to a plurality of target locations in a region of interest to detect initial positions of the common motion tracking location and the plurality of target locations; generating a shear wave in the region of interest; delivering one or more tracking pulses to the common motion tracking location and to the plurality of target locations for determining displacements of the common motion tracking location and the plurality of target locations; computing an average value of displacement of the common motion tracking location; and estimating a motion corrected displacement for a target location in the plurality of target locations based on a displacement of the target location at a particular time, the corresponding displacement of the common tracking location measured proximate in time to the measurement of the displacement of the target location and the average value of displacement of the common motion tracking location.