Speckle tracking for multi-dimensional flow estimation
Speckle tracking for multi-dimensional flow estimation
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DOI：
10.1016/s0041-624x(99)00182-1
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发表时间：
2000-03-01
期刊：
影响因子：
4.2
通讯作者：
Trahey, GE
中科院分区：
文献类型：
--
作者：
Bohs, LN;Geiman, BJ;Trahey, GE
散斑跟踪方法克服了当前多普勒成像和量化方法的主要限制：角度依赖和混叠。在本文中，我们回顾了散斑跟踪的发展，特别关注使用单个传感器孔径的二维算法的优点和局限性。介绍了一种基于并行接收处理的散斑跟踪方法——集成跟踪。集成跟踪的实验结果表明，能够以60度的光束容器角测量幻影中的层流，这是以前的二维散斑跟踪方法无法实现的。最后，对散斑跟踪的研究方向进行了简要的总结。(C) 2000 Elsevier Science B.V.版权所有
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 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. (C) 2000 Elsevier Science B.V. All rights reserved.