Improved shear wave-front reconstruction method by aligning imaging beam angles with shear-wave polarization: Applied for shear compounding application
Conference paper
Hyder, S., Harput, S., Alomari, Z., Cowell, D.M.J., McLaughlan, J. and Freear, S. (2016). Improved shear wave-front reconstruction method by aligning imaging beam angles with shear-wave polarization: Applied for shear compounding application. 2016 IEEE International Ultrasonics Symposium (IUS). Tours, France 18 - 21 Sep 2016 Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/ULTSYM.2016.7728536
Authors | Hyder, S., Harput, S., Alomari, Z., Cowell, D.M.J., McLaughlan, J. and Freear, S. |
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Type | Conference paper |
Abstract | In shear compounding, shear waves are generated at various angles and individual elasticity maps are averaged to reduce noise and improve accuracy. The steered shear waves tilt the tissue motion direction therefore conventional plane wave tracking is not capable of capturing true shear wave amplitude and direction. The proposed method aligns the tracking beams with the shear wave angles, enables beam-axis in the direction of tissue motion to estimate true shear wave motion vector. In this experimental work, shear waves are produced at five different angles and motion is captured using proposed and conventional method. All the experiments are conducted using inclusion-based elasticity phantom. In the results, the displacement maps show that proposed method accurately captured the steered push-beam wave-fronts while conventional method produced push-beam direction artefacts. In the final compounded elasticity maps, the proposed method slightly improved background-to-inclusion elasticity ratio, CNR by 2 dB, and produced inclusion boundary shape sharper than the conventional tracking. © 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works. |
Year | 2016 |
Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
ISSN | 1948-5727 |
Digital Object Identifier (DOI) | https://doi.org/10.1109/ULTSYM.2016.7728536 |
Web address (URL) | https://ieeexplore.ieee.org/document/7728536 |
Accepted author manuscript | License File Access Level Open |
Publication dates | |
Online | 03 Nov 2016 |
Publication process dates | |
Accepted | 21 Sep 2016 |
Deposited | 12 Aug 2019 |
ISBN | 978-1-4673-9897-8 |
Web address (URL) of conference proceedings | https://ieeexplore.ieee.org/document/7728536 |
https://openresearch.lsbu.ac.uk/item/87x81
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