06547731 is referenced by 24 patents and cites 3 patents.

A method for assessing blood flow in a tissue involving directing a beam through the tissue along overlapping lines of sight and then generating the blood flow data from where the ultrasonic beams overlap to evaluate blood flow in the tissue. More specifically, spatially overlapping beams are generated at a fixed temporal intervals. Spatial overlap allows the spatial distance between overlapping lines-of-sight to be ignored, while moving reflectors within any overlapping line-of-sight will cause detectable changes in range of the moving reflector from one line-of-sight to the next. The rate of motion is determined from the measured change in range and the known time interval between vectors. Processing of data includes alignment of data between lines-of-sight to suppress artifactual motion and a wall filter for isolation of flow-data from stationary structures. An apparatus for assessing blood flow includes a transmission system and a storage system. The transmission system generates a beam which is sequentially transmitted towards the tissue along a plurality of overlapping lines of sight and receives echo data from the transmission along each of the lines of sight. The storage system stores the echo data.

Title
Method for assessing blood flow and apparatus thereof
Application Number
9/305593
Publication Number
6547731 (B1)
Application Date
May 5, 1999
Publication Date
April 15, 2003
Inventor
Ronald H Silverman
Brooklyn
NY, US
Dustin E Kruse
Charlottesville
VA, US
Katherine W Ferrara
Charlottesville
VA, US
D Jackson Coleman
Haworth
NJ, US
Agent
Nixon Peabody
US
Assignee
University of Virginia Patent Foundation
VA, US
Cornell Research Foundation
NY, US
IPC
A61B 8/02
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