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- W2611428504 abstract "An artefact has recently been reported [1,2] in the estimation of the lateral blood velocity using speckle tracking. This artefact shows as a net velocity bias in presence of strong spatial velocity gradients such as those that occur at the edges of the filling jets in the heart. Even though this artifact has been found both in vitro and in simulated data, its causes are still undescribed.Here we demonstrate that a potential source of this artefact can be traced to smaller errors in the beamforming setup. By inserting a small offset in the beamforming delay, one can artificially create a net lateral movement in the speckle in areas of high velocity gradient. That offset does not have a strong impact in the image quality and can easily go undetected." @default.
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- W2611428504 date "2017-05-02" @default.
- W2611428504 modified "2023-09-22" @default.
- W2611428504 title "Lateral velocity estimation bias due to beamforming delay errors (Conference Presentation)" @default.
- W2611428504 doi "https://doi.org/10.1117/12.2255908" @default.
- W2611428504 hasPublicationYear "2017" @default.
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