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Speckle tracking for multi-dimensional flow estimation.

L N Bohs·B J Geiman·M E Anderson·S C Gebhart·G E Trahey
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Abstract

Speckle tracking methods overcome the major limitations of current Doppler methods for flow imaging and quantification: angle dependence and aliasing. In this paper, we review the development of speckle tracking, with particular attention to the advantages and limitations of two-dimensional algorithms that use a single transducer aperture. Ensemble tracking, a recent speckle tracking method based upon parallel receive processing, is described. Experimental results with ensemble tracking indicate the ability to measure laminar flow in a phantom at a beam-vessel angle of 60 degrees, which had not been possible with previous 2D speckle tracking methods. Finally, important areas for future research in speckle tracking are briefly summarized.

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AlgorithmsBlood Flow VelocityBlood VesselsHumansPhantoms, ImagingTransducersUltrasonographyJournal ArticleResearch Support, U.S. Gov't, P.H.S.

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L N Bohs, B J Geiman, M E Anderson, S C Gebhart, G E Trahey. 2000. Speckle tracking for multi-dimensional flow estimation.. https://doi.org/10.1016/s0041-624x(99)00182-1

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