ArticleIEEE transactions on ultrasonics, ferroelectrics, and frequency control2020
Incoherent Clutter Suppression Using Lag-One Coherence.
Article in IEEE transactions on ultrasonics, ferroelectrics, and frequency control, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Optimal transmit apodization for the maximization of lag-one coherence with applications to aberration delay estimation.Ultrasonics · 2023Article
- Large-Array Deep Abdominal Imaging in Fundamental and Harmonic Mode.IEEE transactions on ultrasonics, ferroelectrics, and frequency control · 2023Article
- Coherence Metrics for Reader-Independent Differentiation of Cystic From Solid Breast Masses in Ultrasound Images.Ultrasound in medicine & biology · 2023Article
- Adaptive Models for Multi-Covariate Imaging of Sub-Resolution Targets (MIST).IEEE transactions on ultrasonics, ferroelectrics, and frequency control · 2022Article
- Spatial Coherence in Medical Ultrasound: A Review.Ultrasound in medicine & biology · 2022Review
- Spatiotemporal Coherence to Quantify Sources of Image Degradation in Ultrasonic Imaging.IEEE transactions on ultrasonics, ferroelectrics, and frequency control · 2022Article
- Occult Regions of Suppressed Coherence in Liver B-Mode Images.Ultrasound in medicine & biology · 2022Article
- Reverberation Clutter Suppression Using 2-D Spatial Coherence Analysis.IEEE transactions on ultrasonics, ferroelectrics, and frequency control · 2022Article
- Frequency-Dependent Spatial Coherence in Conventional and Chirp Transmissions.IEEE transactions on ultrasonics, ferroelectrics, and frequency control · 2021Article
- Histogram Matching for Visual Ultrasound Image Comparison.IEEE transactions on ultrasonics, ferroelectrics, and frequency control · 2021Article
- Coherence-based quantification of acoustic clutter sources in medical ultrasound.The Journal of the Acoustical Society of America · 2020Article
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3 authors.
Funding
Abstract
The lag-one coherence (LOC), derived from the correlation between the nearest-neighbor channel signals, provides a reliable measure of clutter which, under certain assumptions, can be directly related to the signal-to-noise ratio of individual channel signals. This offers a direct means to decompose the beamsum output power into contributions from speckle and spatially incoherent noise originating from acoustic clutter and thermal noise. In this study, we applied a novel method called lag-one spatial coherence adaptive normalization (LoSCAN) to locally estimate and compensate for the contribution of spatially incoherent clutter from conventional delay-and-sum (DAS) images. Suppression of incoherent clutter by LoSCAN resulted in improved image quality without introducing many of the artifacts common to other adaptive imaging methods. In simulations with known targets and added channel noise, LoSCAN was shown to restore native contrast and increase DAS dynamic range by as much as 10-15 dB. These improvements were accompanied by DAS-like speckle texture along with reduced focal dependence and artifact compared with other adaptive methods. Under in vivo liver and fetal imaging conditions, LoSCAN resulted in increased generalized contrast-to-noise ratio (gCNR) in nearly all matched image pairs ( N = 366 ) with average increases of 0.01, 0.03, and 0.05 in good-, fair-, and poor-quality DAS images, respectively, and overall changes in gCNR from -0.01 to 0.20, contrast-to-noise ratio (CNR) from -0.05 to 0.34, contrast from -9.5 to -0.1 dB, and texture μ/σ from -0.37 to -0.001 relative to DAS.
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