Method and apparatus for providing real-time calculation and display of tissue deformation in ultrasound imaging
AssigneeG.E. Vingmed Ultrasound AS
InventorsHans Torp, Bjorn Olstad, Andreas Heimdal, Steinar Bjaerum
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Abstract
An ultrasound system and method for calculation and display of tissue deformation parameters, such as tissue Doppler and strain rate imaging, are disclosed. An ultrasound acquisition technique that allows a high frame rate in tissue velocity imaging or strain rate imaging is employed. With this acquisition technique the same ultrasound pulses are used for the tissue image and the Doppler based image. The number of beams used in Doppler subframes are increased to allow tissue visualization based only on Doppler subframes. A sliding window technique is used for processing.
Claims14
A method for generating a composite tissue image and tissue movement image in an ultrasound system comprising:
- acquiring echo signals for a plurality of range positions along a plurality of ultrasonic beams covering a spatial region of interest during a first time period;
- acquiring echo signals for a plurality of range positions along the plurality of ultrasonic beams covering the spatial region of interest during a second time period;
- acquiring echo signals for a plurality of range positions along the plurality of ultrasonic beams covering the spatial region of interest during a third time period;
- processing acquired echo signals from at least said first and second time periods to produce a first frame of a composite tissue image and tissue movement image;
- and
- processing acquired echo signals from at least said second and third time periods to produce a second frame of a composite tissue image and tissue movement image.
Dependencies are inferred from the claim text.