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Nonlocal Coherent Denoising of RF Data for Ultrasound Elastography
Joint Authors
Khavari, P.
Asif, A.
Boily, M.
Rivaz, H.
Source
Journal of Healthcare Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-06-24
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Ultrasound elastography infers mechanical properties of living tissues from ultrasound radiofrequency (RF) data recorded while the tissues are undergoing deformation.
A challenging yet critical step in ultrasound elastography is to estimate the tissue displacement (or, equivalently the time delay estimate) fields from pairs of RF data.
The RF data are often corrupted with noise, which causes the displacement estimator to fail in many in vivo experiments.
To address this problem, we present a nonlocal, coherent denoising approach based on Bayesian estimation to reduce the impact of noise.
Despite incoherent denoising algorithms that smooth the B-mode images, the proposed denoising algorithm is used to suppress noise while maintaining useful information such as speckle patterns.
We refer to the proposed approach as COherent Denoising for Elastography (CODE) and evaluate its performance when CODE is used in conjunction with the two state-of-art elastography algorithms, namely: (i) GLobal Ultrasound Elastography (GLUE) and (ii) Dynamic Programming Analytic Minimization elastography (DPAM).
Our results show that CODE substantially improves the strain result of both GLUE and DPAM.
American Psychological Association (APA)
Khavari, P.& Asif, A.& Boily, M.& Rivaz, H.. 2018. Nonlocal Coherent Denoising of RF Data for Ultrasound Elastography. Journal of Healthcare Engineering،Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1187697
Modern Language Association (MLA)
Khavari, P.…[et al.]. Nonlocal Coherent Denoising of RF Data for Ultrasound Elastography. Journal of Healthcare Engineering No. 2018 (2018), pp.1-9.
https://search.emarefa.net/detail/BIM-1187697
American Medical Association (AMA)
Khavari, P.& Asif, A.& Boily, M.& Rivaz, H.. Nonlocal Coherent Denoising of RF Data for Ultrasound Elastography. Journal of Healthcare Engineering. 2018. Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1187697
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1187697