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• W3136961553 abstract "Digital breast tomosynthesis (DBT) is a quasi-three-dimensional imaging modality that can reduce false negatives and false positives in mass lesion detection caused by overlapping breast tissue in conventional two-dimensional (2D) mammography. The patient dose of a DBT scan is similar to that of a single 2D mammogram, while acquisition of each projection view adds detector readout noise. The noise is propagated to the reconstructed DBT volume, possibly obscuring subtle signs of breast cancer such as microcalcifications (MCs). This study developed a deep convolutional neural network (DCNN) framework for denoising DBT images with a focus on improving the conspicuity of MCs as well as preserving the ill-defined margins of spiculated masses and normal tissue textures. We trained the DCNN using a weighted combination of mean squared error (MSE) loss and adversarial loss. We configured a dedicated x-ray imaging simulator in combination with digital breast phantoms to generate realistic in silico DBT data for training. We compared the DCNN training between using digital phantoms and using real physical phantoms. The proposed denoising method improved the contrast-to-noise ratio (CNR) and detectability index (d') of the simulated MCs in the validation phantom DBTs. These performance measures improved with increasing training target dose and training sample size. Promising denoising results were observed on the transferability of the digital-phantom-trained denoiser to DBT reconstructed with different techniques and on a small independent test set of human subject DBT images." @default.
• W3136961553 created "2021-03-29" @default.
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• W3136961553 date "2021-07-01" @default.
• W3136961553 modified "2023-10-04" @default.
• W3136961553 title "Deep Convolutional Neural Network With Adversarial Training for Denoising Digital Breast Tomosynthesis Images" @default.
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• W3136961553 doi "https://doi.org/10.1109/tmi.2021.3066896" @default.
• W3136961553 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/8274391" @default.
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• W3136961553 hasPublicationYear "2021" @default.
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