Investigating Pulse-Echo Sound Speed Estimation in Breast Ultrasound
with Deep Learning
- URL: http://arxiv.org/abs/2302.03064v1
- Date: Mon, 6 Feb 2023 19:02:44 GMT
- Title: Investigating Pulse-Echo Sound Speed Estimation in Breast Ultrasound
with Deep Learning
- Authors: Walter A. Simson, Magdalini Paschali, Vasiliki Sideri-Lampretsa,
Nassir Navab, Jeremy J. Dahl
- Abstract summary: We propose a deep-learning approach for sound speed estimation from in-phase and quadrature ultrasound signals.
We develop a large-scale simulated ultrasound dataset that generates quasi-realistic breast tissue.
We evaluate the model on simulated, phantom, and in-vivo breast ultrasound data.
- Score: 44.70495434283752
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Ultrasound is an adjunct tool to mammography that can quickly and safely aid
physicians with diagnosing breast abnormalities. Clinical ultrasound often
assumes a constant sound speed to form B-mode images for diagnosis. However,
the various types of breast tissue, such as glandular, fat, and lesions, differ
in sound speed. These differences can degrade the image reconstruction process.
Alternatively, sound speed can be a powerful tool for identifying disease. To
this end, we propose a deep-learning approach for sound speed estimation from
in-phase and quadrature ultrasound signals. First, we develop a large-scale
simulated ultrasound dataset that generates quasi-realistic breast tissue by
modeling breast gland, skin, and lesions with varying echogenicity and sound
speed. We developed a fully convolutional neural network architecture trained
on a simulated dataset to produce an estimated sound speed map from inputting
three complex-value in-phase and quadrature ultrasound images formed from
plane-wave transmissions at separate angles. Furthermore, thermal noise
augmentation is used during model optimization to enhance generalizability to
real ultrasound data. We evaluate the model on simulated, phantom, and in-vivo
breast ultrasound data, demonstrating its ability to accurately estimate sound
speeds consistent with previously reported values in the literature. Our
simulated dataset and model will be publicly available to provide a step
towards accurate and generalizable sound speed estimation for pulse-echo
ultrasound imaging.
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