Method and apparatus for creating adaptively focused ultrasound

Surgery – Diagnostic testing – Detecting nuclear – electromagnetic – or ultrasonic radiation

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A61B 800

Patent

active

057760667

ABSTRACT:
A method for creating ultrasound images determines if an ultrasound transducer is moving by more than a predetermined amount by obtaining two conventionally focused images D.sub.K-1 and D.sub.K. Each image is divided into a series of sections. An image processor searches the previous frame D.sub.K-1 for data points found in the current frame D.sub.K. Movement vectors are defined for each section that describe how the data points of a section move from the previous frame D.sub.K-1 to the current frame D.sub.K. The movement vectors are then applied to sections of a previously displayed adaptively focused frame I.sub.K-1 in order to create a translated adaptively focused frame I.sub.K-1'. A new adaptively focused frame is created by averaging the current adaptively focused frame A.sub.K with the translated frame I.sub.K-1'.

REFERENCES:
patent: 5566674 (1996-10-01), Weng

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