Phase Aberration Correction: A Deep Learning-Based Aberration to Aberration Approach

M Sharifzadeh, S Goudarzi, A Tang, H Benali… - arXiv preprint arXiv …, 2023 - arxiv.org
arXiv preprint arXiv:2308.11149, 2023arxiv.org
One of the primary sources of suboptimal image quality in ultrasound imaging is phase
aberration. It is caused by spatial changes in sound speed over a heterogeneous medium,
which disturbs the transmitted waves and prevents coherent summation of echo signals.
Obtaining non-aberrated ground truths in real-world scenarios can be extremely
challenging, if not impossible. This challenge hinders training of deep learning-based
techniques' performance due to the presence of domain shift between simulated and …
One of the primary sources of suboptimal image quality in ultrasound imaging is phase aberration. It is caused by spatial changes in sound speed over a heterogeneous medium, which disturbs the transmitted waves and prevents coherent summation of echo signals. Obtaining non-aberrated ground truths in real-world scenarios can be extremely challenging, if not impossible. This challenge hinders training of deep learning-based techniques' performance due to the presence of domain shift between simulated and experimental data. Here, for the first time, we propose a deep learning-based method that does not require ground truth to correct the phase aberration problem, and as such, can be directly trained on real data. We train a network wherein both the input and target output are randomly aberrated radio frequency (RF) data. Moreover, we demonstrate that a conventional loss function such as mean square error is inadequate for training such a network to achieve optimal performance. Instead, we propose an adaptive mixed loss function that employs both B-mode and RF data, resulting in more efficient convergence and enhanced performance. Finally, we publicly release our dataset, including 161,701 single plane-wave images (RF data). This dataset serves to mitigate the data scarcity problem in the development of deep learning-based techniques for phase aberration correction.
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