Radial sequences hold great potential for real-time navigation in MRI. Navigator images can be produced off very few spokes of sampled data however, characteristic streaking artifacts appear due to under-sampling at the outer edges of the k-space field of view. In this study, a method is proposed to reconstruct navigator images with a reduced base resolution to minimize the effects of under sampling and reduce the appearance of streaking artifacts, improving the accuracy of motion-registration. The success of this method supports the pursuit of radial sequences for applications in real-time navigation.
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