Surgery – Diagnostic testing – Detecting nuclear – electromagnetic – or ultrasonic radiation
Reexamination Certificate
2005-12-22
2010-10-05
Smith, Ruth S (Department: 3737)
Surgery
Diagnostic testing
Detecting nuclear, electromagnetic, or ultrasonic radiation
C600S453000, C600S465000, C600S468000
Reexamination Certificate
active
07806826
ABSTRACT:
A method for eliminating abnormal blood flow velocities in an ultrasonic imaging system is provided in present invention. The method comprises: receiving signals of blood flow; pre-processing the received signals to generate velocity signs in real time; obtaining a plurality of the velocity signs in a predefined spatial and temporal order, and performing weighted smoothing on the plurality of the velocity signs; determining the direction of blood flow at the pixel to be confirmed according to result of the weighted smoothing. A module for performing above method and a color flow imaging system with such a module are also provided in present invention. The method and apparatus provided by present invention can judge the practical direction of blood flow intelligently by performing spatial-temporal smoothing only on the signs of blood flow velocities, so that the estimation error caused by the system noise, clutter residue, speckle effect and etc. can be corrected.
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Christensen Kory D.
Cook Christopher
Shenzhen Mindray Bio-Medical Electronics Co., Ltd.
Smith Ruth S
Stoel Rives LLP
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