Noises, artifacts, and loss of information caused by the MR reconstruction may compromise the final performance of the downstream applications such as image segmentation. In this study, we develop a re-weighted multi-task deep learning method to learn prior knowledge from the existing big dataset and then utilize them to assist simultaneous MR reconstruction and segmentation from under-sampled k-space data. It integrates the reconstruction with segmentation and produces both promising reconstructed images and accurate segmentation results. This work shows a new way for the direct image analysis from k-space data with deep learning.
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