A new high resolution color flow system using an eigendecomposition-based adaptive filter for clutter rejection
A new high resolution color flow system using an eigendecomposition-based adaptive filter for clutter rejection
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DOI：
10.1109/tuffc.2002.1041080
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发表时间：
2002-10-01
影响因子：
3.6
通讯作者：
Ferrara, KW
中科院分区：
文献类型：
--
作者：
Kruse, DE;Ferrara, KW
我们提出了一种新的信号处理策略，用于运动组织环境中的高频彩色流映射。提出了基于特征分解的杂波抑制滤波器的新应用，并进行了修改以处理高血液杂波比 (BCR)。此外，还详细介绍了一种利用估计的组织运动轮廓来校正血流速度估计的新方法。使用新的扫频信号模型对杂波滤波器和速度估计策略的性能进行量化。体内彩色血流图像展示了该系统绘制微循环血流与外部组织运动的潜力。
We present a new signal processing strategy for high frequency color flow mapping in moving tissue environments. A new application of an eigendecomposition-based clutter rejection filter is presented with modifications to deal with high blood-to-clutter ratios (BCR). Additionally, a new method for correcting blood velocity estimates with an estimated tissue motion profile is detailed. The performance of the clutter filter and velocity estimation strategies is quantified using a new swept-scan signal model. In vivo color flow images are presented to illustrate the potential of the system for mapping blood flow in the microcirculation with external tissue motion.