Patent ID: 6270459
Filing Date: 2001-08-07
Classification: A61B

Abstract:
A method for finding a match between echo sequences in each of two adjacent overlapping beams comprising:a. acoustically coupling at least two spaced ultrasound sources to a target body, said sources spaced apart a distance d, such that said beams overlap;b. emitting a first pulse of ultrasound energy along the axis of each beam and into the target body;c. recording the arrival time of the first echo sequence having at least one echo segment arriving in response to said first pulse of ultrasound energy within each beam;d. emitting a next pulse of ultrasound energy along each beam axis;e. recording the arrival time of a next echo sequence for each beam emitted in step (d);f. storing the previously recorded data in a retrievable medium; andg. finding a match of at least one first echo sequence of a beam emitted in step (a) to next said echo sequence of a beam emitted in step (d).