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• W4285243682 abstract "We present a retrospective joint motion correction and reconstruction scheme for magnetic resonance imaging to reduce the imprint of subject motion on the reconstructed images. In multi-contrast imaging, reconstructions pertaining to distinct acquisition sequences (e.g., T1 or T2 weighted images) might not be equally affected by motion, due to the sequential nature of the data acquisition process or the specific sequence design. To avoid repeating the corrupted scan, we can leverage the uncorrupted reconstructions to post-process the contrasts that are most severely affected by motion, by assuming a shared underlying anatomy. Only rigid motion is considered here, but no further assumptions are required. Classical motion correction schemes are combined with weighted total-variation regularization, whose weight is defined by the structure of the well-resolved contrasts. We will particularly focus on brain imaging with conventional Cartesian sampling. We envision a practical workflow that can easily fit into the existing clinical practice without the need for changing the MRI acquisition protocols." @default.
• W4285243682 created "2022-07-14" @default.
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• W4285243682 date "2022-01-01" @default.
• W4285243682 modified "2023-10-18" @default.
• W4285243682 title "Joint Retrospective Motion Correction and Reconstruction for Brain MRI With a Reference Contrast" @default.
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• W4285243682 doi "https://doi.org/10.1109/tci.2022.3183383" @default.
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