“…Additionally, some iterative reconstruction methods have also been proposed using only backpropagation without any backprojection process (Figs. 15 and 16 ) [ 195 – 197 ]. Fig.…”
Section: Deep Learning For Iterative Pet Image Reconstructionmentioning
confidence: 99%
“…Reprinted with permission from Hashimoto et al [195] only backpropagation without any backprojection process (Figs. 15 and 16) [195][196][197].…”
Section: Deep Learning For Iterative Pet Image Reconstructionmentioning
This review focuses on positron emission tomography (PET) imaging algorithms and traces the evolution of PET image reconstruction methods. First, we provide an overview of conventional PET image reconstruction methods from filtered backprojection through to recent iterative PET image reconstruction algorithms, and then review deep learning methods for PET data up to the latest innovations within three main categories. The first category involves post-processing methods for PET image denoising. The second category comprises direct image reconstruction methods that learn mappings from sinograms to the reconstructed images in an end-to-end manner. The third category comprises iterative reconstruction methods that combine conventional iterative image reconstruction with neural-network enhancement. We discuss future perspectives on PET imaging and deep learning technology.
“…Additionally, some iterative reconstruction methods have also been proposed using only backpropagation without any backprojection process (Figs. 15 and 16 ) [ 195 – 197 ]. Fig.…”
Section: Deep Learning For Iterative Pet Image Reconstructionmentioning
confidence: 99%
“…Reprinted with permission from Hashimoto et al [195] only backpropagation without any backprojection process (Figs. 15 and 16) [195][196][197].…”
Section: Deep Learning For Iterative Pet Image Reconstructionmentioning
This review focuses on positron emission tomography (PET) imaging algorithms and traces the evolution of PET image reconstruction methods. First, we provide an overview of conventional PET image reconstruction methods from filtered backprojection through to recent iterative PET image reconstruction algorithms, and then review deep learning methods for PET data up to the latest innovations within three main categories. The first category involves post-processing methods for PET image denoising. The second category comprises direct image reconstruction methods that learn mappings from sinograms to the reconstructed images in an end-to-end manner. The third category comprises iterative reconstruction methods that combine conventional iterative image reconstruction with neural-network enhancement. We discuss future perspectives on PET imaging and deep learning technology.
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