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.
journal_name
Ultrasonicsjournal_title
Ultrasonicsauthors
Bohs LN,Geiman BJ,Anderson ME,Gebhart SC,Trahey GEdoi
10.1016/s0041-624x(99)00182-1subject
Has Abstractpub_date
2000-03-01 00:00:00pages
369-75issue
1-8eissn
0041-624Xissn
1874-9968pii
S0041-624X(99)00182-1journal_volume
38pub_type
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