期刊
IEEE TRANSACTIONS ON MEDICAL IMAGING
卷 40, 期 11, 页码 3002-3014出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TMI.2021.3078067
关键词
Image reconstruction; Computed tomography; Drones; Imaging; Biomedical measurement; Reconstruction algorithms; Generative adversarial networks; Computed tomography (CT); sparse-view CT reconstruction; deep learning; iterative reconstruction; compressed sensing
类别
资金
- Li Ka Shing Foundation
- NIH [R01CA237267, R01CA233888, R01EB026646, R01HL151561]
The article introduces a Dual-domain Residual-based Optimization NEtwork (DRONE) to address the challenge of sparse-view CT reconstruction. The network consists of three modules for embedding, refinement, and awareness, aimed at suppressing sparse-view artifacts and recovering image details to optimize image quality.
Deep learning has attracted rapidly increasing attention in the field of tomographic image reconstruction, especially for CT, MRI, PET/SPECT, ultrasound and optical imaging. Among various topics, sparse-view CT remains a challenge which targets a decent image reconstruction from very few projections. To address this challenge, in this article we propose a Dual-domain Residual-based Optimization NEtwork (DRONE). DRONE consists of three modules respectively for embedding, refinement, and awareness. In the embedding module, a sparse sinogram is first extended. Then, sparse-view artifacts are effectively suppressed in the image domain. After that, the refinement module recovers image details in the residual data and image domains synergistically. Finally, the results from the embedding and refinement modules in the data and image domains are regularized for optimized image quality in the awareness module, which ensures the consistency between measurements and images with the kernel awareness of compressed sensing. The DRONE network is trained, validated, and tested on preclinical and clinical datasets, demonstrating its merits in edge preservation, feature recovery, and reconstruction accuracy.
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