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March 1, 2008IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control

Single-ensemble-based eigen-processing methods for color flow imaging - Part I. The Hankel-SVD filter

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Key result

Hankel-SVD filter achieves ~9 dB power separation between blood and moving tissue vs clutter-downmixing filter.

Population

Synthetic slow-time data modeling arterial and deep vessel imaging, and in vivo color flow data from human…

Comparison

Hankel-SVD filter vs Clutter-downmixing filter and a fixed-rank multi…

Design

Other

Authors

AYAlfred C. H. YuRCR.S.C. Cobbold

Discussion

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Overview

May enhance experimental clutter suppression in color flow imaging; leaves open clinical diagnostic gains pending validation.

Structured PICO

P
Population
Synthetic slow-time data (ensemble size: 10) modeling arterial and deep vessel imaging, and in vivo color flow data from human carotid arteries
I
Intervention
Hankel-SVD filter
C
Comparator
Clutter-downmixing filter and a fixed-rank multi ensemble-based eigen-filter
O
Outcome
Post-filter clutter-to-blood signal ratio (CBR) and power separation between blood and moving-tissue regionssurrogate

Main Result

Absolute Event Rate: 9% vs 2.5%

The proposed Hankel-SVD filter improves clutter suppression and better distinguishes between blood and moving tissue in color flow ultrasound imaging compared to existing filters.

Cite This Study

Yu et al. (2008) studied this question. Hankel-SVD filter vs. clutter-downmixing filter and fixed-rank multi ensemble-based eigen-filter was evaluated on Separation in power between blood and moving-tissue regions. The Hankel-SVD filter achieved better distinction between blood and moving-tissue regions (about 9 dB separation in power) compared to the clutter-downmixing filter (2 to 3 dB separation).

synapsesocial.com/papers/6aa4eee46803e1e7a1f2e0e7https://doi.org/10.1109/tuffc.2008.682
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Also Consider

Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1A new high resolution color flow system using an eigendecomposition-based adaptive filter for clutter rejection2002 · 96 citations
  2. 2Reduction of the Clutter Component in Doppler Ultrasound Signals Based on Singular Value Decomposition: A Simulation Study1997 · 123 citations
  3. 3Ultrasound doppler measurements of low velocity blood flow: limitations due to clutter signals from vibrating muscles1997 · 86 citations
  4. 4Real-time adaptive clutter rejection filtering in color flow imaging using power method iterations2006 · 70 citations