Enhancement of contrast and resolution of B-mode plane wave imaging (PWI) with non-linear filtered delay multiply and sum (FDMAS) beamforming
Conference paper
Moubark, A.M., Alomari, Z., Harput, S., Cowell, D.M.J. and Freear, S. (2016). Enhancement of contrast and resolution of B-mode plane wave imaging (PWI) with non-linear filtered delay multiply and sum (FDMAS) beamforming. 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 | Moubark, A.M., Alomari, Z., Harput, S., Cowell, D.M.J. and Freear, S. |
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Type | Conference paper |
Abstract | FDMAS has been successfully used in microwave imaging for breast cancer detection. FDMAS gained its popularity due to its capability to produce results faster than any other adaptive beamforming technique such as minimum variance (MV) which requires higher computational complexity. The average computational time for single point spread function (PSF) at 40 mm depth for FDMAS is 87 times faster than MV. The new beamforming technique has been tested on PSF and cyst phantoms experimentally with the ultrasound array research platform version 2 (UARP II) using a 3-8 MHz 128 element clinical transducer. FDMAS is able to improve both imaging contrast and spatial resolution as compared to DAS. The wire phantom main lobes lateral resolution improved in FDMAS by 40.4% with square pulse excitation signal when compared to DAS. Meanwhile the contrast ratio (CR) obtained for an anechoic cyst located at 15 mm depth for PWI with DAS and FDMAS are -6.2 dB and -14.9 dB respectively. The ability to reduce noise from off axis with auto-correlation operation in FDMAS pave the way to display the B-mode image with high dynamic range. However, the contrast to noise ratio (CNR) measured at same cyst location for FDMAS give less reading compared to DAS. Nevertheless, this drawback can be compensated by applying compound plane wave imaging (CPWI) technique on FDMAS. In overall the new FDMAS beamforming technique outperforms DAS in laboratory experiments by narrowing its main lobes and increases the image contrast without sacrificing its frame rates. (c) 2016, IEEE. This is an author produced version of a paper published in IEEE International Ultrasonics Symposium, IUS . 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. Uploaded in accordance with the publisher’s self-archiving policy. |
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 | |
Submitted | 21 Sep 2016 |
Deposited | 12 Aug 2019 |
ISBN | 9781467398978 |
Web address (URL) of conference proceedings | https://ieeexplore.ieee.org/xpl/conhome/7589760/proceeding |
https://openresearch.lsbu.ac.uk/item/87x84
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