Patent ID: 7077807

Claim:
A method for generating tissue deformation information comprising: acquiring echo signals for a plurality of beams and a plurality of range positions along ultrasonic beams in an area of interest to cover a spatial region; determining a beam angle between the ultrasonic beams and a principle direction for local tissue deformation; computing at least one angle corrected tissue deformation parameter along said principal direction for at least one spatial location, wherein said computation of at least one angle corrected tissue deformation parameter comprises: (i) computing a radial velocity gradient radially along the ultrasound beam; (ii) computing a lateral velocity gradient laterally between beams at a fixed range location; and (iii) deriving angle corrected tissue deformation parameters as a linear combination of said radial and lateral velocity gradients determined by said beam angle; and displaying at least one of the said angle corrected tissue deformation parameters on a display unit.