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Illustration of our network. The network takes the 18F-FDG PET/MR slices as parallel input, and the output is the segmented mask. The U-net architecture performed multiscale feature extraction and fusion for 18F-FDG PET/MR images, facilitating accurate segmentation. FDG, fluorodeoxyglucose; MR, magnetic resonance; PET, positron emission tomography.
