Speckle tracking for multi-dimensional flow estimation

Citation
Ln. Bohs et al., Speckle tracking for multi-dimensional flow estimation, ULTRASONICS, 38(1-8), 2000, pp. 369-375
Citations number
22
Categorie Soggetti
Optics & Acoustics
Journal title
ULTRASONICS
ISSN journal
0041624X → ACNP
Volume
38
Issue
1-8
Year of publication
2000
Pages
369 - 375
Database
ISI
SICI code
0041-624X(200003)38:1-8<369:STFMFE>2.0.ZU;2-9
Abstract
Speckle tracking methods overcome the major limitations of current Doppler methods for how imaging and quantification: angle dependence and aliasing. In this paper, we review the development of speckle tracking, with particul ar attention to the advantages and limitations of two-dimensional algorithm s that use a single transducer aperture. Ensemble tracking, a recent speckl e tracking method based upon parallel receive processing, is described. Exp erimental results with ensemble tracking indicate the ability to measure la minar flow in a phantom at a beam-vessel angle of 60 degrees, which had not been possible with previous 2D speckle tracking methods. Finally, importan t areas for future research in speckle tracking are briefly summarized. (C) 2000 Elsevier Science B.V. All rights reserved.