A New Nonlinear Compounding Technique for Ultrasound B-mode Medical Imaging

Moubark, Asraf Mohamed; Nie, Luzhen; Cowell, David M. J.; Ali, Sawal Hamid Md; Freear, Steven

doi:10.1109/ultsym.2019.8926026

Cited by 5 publications

(2 citation statements)

References 10 publications

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“…In our previous work [ 23 ], we proposed a nonlinear compounding technique known as filtered multiply and sum (FMAS). However, we just gave a brief introduction of the concept and did not explain in detail the potential applications and main theory behind the improvement of AR.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Ultrasound B-Mode Image Quality Using Nonlinear Filtered-Multiply-and-Sum Compounding for Improved Carotid Artery Segmentation

et al. 2023

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In ultrasound B-mode imaging, the axial resolution (AR) is commonly determined by the duration or bandwidth of an excitation signal. A shorter-duration pulse will produce better resolution compared to a longer one but with compromised penetration depth. Instead of relying on the pulse duration or bandwidth to improve the AR, an alternative method termed filtered multiply and sum (FMAS) has been introduced in our previous work. For spatial-compounding, FMAS uses the autocorrelation technique as used in filtered-delay multiply and sum (FDMAS), instead of conventional averaging. FMAS enables a higher frame rate and less computational complexity than conventional plane-wave compound imaging beamformed with delay and sum (DAS) and FDMAS. Moreover, it can provide an improved contrast ratio and AR. In previous work, no explanation was given on how FMAS was able to improve the AR. Thus, in this work, we discuss in detail the theory behind the proposed FMAS algorithm and how it is able to improve the spatial resolution mainly in the axial direction. Simulations, experimental phantom measurements and in vivo studies were conducted to benchmark the performance of the proposed method. We also demonstrate how the suggested new algorithm may be used in a practical biomedical imaging application. The balloon snake active contour segmentation technique was applied to the ultrasound B-mode image of a common carotid artery produced with FMAS. The suggested method is capable of reducing the number of iterations for the snake to settle on the region-of-interest contour, accelerating the segmentation process.

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Section: Introductionmentioning

confidence: 99%

Enhancement of Ultrasound B-Mode Image Quality Using Nonlinear Filtered-Multiply-and-Sum Compounding for Improved Carotid Artery Segmentation

et al. 2023

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“…In addition, a real-time implementation of the DMAS has been used for calculating the amount of reduction with no negative effect on the imaging result [ 23 , 24 ]. The DMAS used as nonlinear compounding, named as the frame multiply and sum (FMAS), was also introduced to improve the contrast for PWC imaging [ 25 ]. Nevertheless, there is still room for the improvement in the imaging resolution and contrast while retaining the real-time ability.…”

Section: Introductionmentioning

confidence: 99%

High Resolution, High Contrast Beamformer Using Minimum Variance and Plane Wave Nonlinear Compounding with Low Complexity

Yan

Wang

et al. 2021

Sensors

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The plane wave compounding (PWC) is a promising modality to improve the imaging quality and maintain the high frame rate for ultrafast ultrasound imaging. In this paper, a novel beamforming method is proposed to achieve higher resolution and contrast with low complexity. A minimum variance (MV) weight calculated by the partial generalized sidelobe canceler is adopted to beamform the receiving array signals. The dimension reduction technique is introduced to project the data into lower dimensional space, which also contributes to a large subarray length. Estimation of multi-wave receiving covariance matrix is performed and then utilized to determine only one weight. Afterwards, a fast second-order reformulation of the delay multiply and sum (DMAS) is developed as nonlinear compounding to composite the beamforming output of multiple transmissions. Simulations, phantom, in vivo, and robustness experiments were carried out to evaluate the performance of the proposed method. Compared with the delay and sum (DAS) beamformer, the proposed method achieved 86.3% narrower main lobe width and 112% higher contrast ratio in simulations. The robustness to the channel noise of the proposed method is effectively enhanced at the same time. Furthermore, it maintains a linear computational complexity, which means that it has the potential to be implemented for real-time response.

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Novel spatio-temporal non-linear beamformers for sparse synthetic aperture ultrasound imaging

Vayyeti

Thittai

2022

Ultrasonics

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A New Nonlinear Compounding Technique for Ultrasound B-mode Medical Imaging

Cited by 5 publications

References 10 publications

Enhancement of Ultrasound B-Mode Image Quality Using Nonlinear Filtered-Multiply-and-Sum Compounding for Improved Carotid Artery Segmentation

Enhancement of Ultrasound B-Mode Image Quality Using Nonlinear Filtered-Multiply-and-Sum Compounding for Improved Carotid Artery Segmentation

High Resolution, High Contrast Beamformer Using Minimum Variance and Plane Wave Nonlinear Compounding with Low Complexity

Novel spatio-temporal non-linear beamformers for sparse synthetic aperture ultrasound imaging

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