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Abstract #1660

Self-supervised Denoising of Pulmonary Perfusion Imaging in Human Subjects and Swine

Changyu Sun1,2, Craig A. Emter3, Darla L. Tharp3, and Talissa A. Altes2
1Biomedical, Biological and Chemical Engineering, University of Missouri Columbia, Columbia, MO, United States, 2Radiology, University of Missouri Columbia, Columbia, MO, United States, 3Biomedical Sciences, University of Missouri Columbia, Columbia, MO, United States

Synopsis

Keywords: Lung, Machine Learning/Artificial Intelligence, Self-supervised DenoisingSelf-supervised learning denoising networks can be applied to noisy only datasets when the clean-noisy pairs are not available, which is suitable for dynamic contrast-enhanced (DCE) pulmonary imaging where SNR is low and no ground truth clean image can be acquired. Blind-spot network with asymmetric pixel-shuffle downsampling (AP-BSN) was trained to utilize the advantages of self-supervised BSN and improve the denoising performance for pixel-wise independent and dependent noise. AP-BSN denoised images showed improved image quality by human reader assessment. AP-BSN showed generalization ability from human subjects to swine and from 1.5T to 3T.

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Keywords