Inherent Correction of Rigid-Body Motion in Fast Spin-Echo Imaging

Fast Spin-Echo (FSE) images are routinely acquired clinically due to their contrast range and fast acquisition. In the presence of rigid-body patient motion, however, the excitations in FSE correspond to different patient positions, resulting in motion-corrupted images when using standard reconstruction. Here we present a reconstruction method which can inherently estimate the level of rigid-body motion in FSE data, and produce images without blurring and artifacts. We demonstrate that the method provides better image quality than conventional reconstruction in the presence of rigid-body motion, and is useful for clinical FSE investigations requiring high quality images free of motion corruption.

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