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Comparison of reconstructed images using 3D Unet and P2P models with 17%PET images as input. SUVbw, standardized uptake value body weight; 3D Unet, a deep network model based on CNN; P2P, Pixel2Pixel deep network model based on GAN; PET, positron emission tomography; FD-PET, full dose-positron emission tomography (per bed time: 180 s); CNN, convolutional neural network; GAN, generative adversarial network.
