| 摘要 |
Computer implemented methods that reduce artifacts in images reconstructed from MRI data acquired during planned radial acquisition trajectories are provided. One example method includes obtaining a planned radial trajectory along which MRI data should be acquired, predicting trajectories that may actually be taken during MRI data acquisition, and measuring an actual trajectory taken during MRI data acquisition. The method also includes acquiring an MRI data, where it is attempted to acquire the MRI data in accordance with the planned radial trajectory, and selectively reconstructing the MRI data into an image using one or more of, the planned radial trajectory, the measured trajectory, and the predicted trajectories based, at least in part, on an artifact level in a reconstructed image and discrepancies between planned trajectories and actual trajectories.
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