Robust statistical extension to TRELLIS motion correction in MRI

Philip J. Bones; Julian R. Maclaren

doi:10.1117/12.796814

5 September 2008 Robust statistical extension to TRELLIS motion correction in MRI

Philip J. Bones, Julian R. Maclaren

Proceedings Volume 7076, Image Reconstruction from Incomplete Data V; 70760H (2008) https://doi.org/10.1117/12.796814
Event: Optical Engineering + Applications, 2008, San Diego, California, United States

Abstract

Bulk motion occurring during the acquisition of data in magnetic resonance imaging (MRI) causes serious artifacts in the reconstructed images. The paper presents an extension to TRELLIS, a recently developed method of detecting and correcting for bulk motion. While TRELLIS detects and corrects for bulk translation and rotation, only rotation is considered here. Accurate determination of the relative orientations of overlapping strips of kspace is demonstrated using a robust statistical approach to aid least squares estimation. Reconstructions for both simulated and actual MRI acquisitions are presented.

Citation Download Citation

Philip J. Bones and Julian R. Maclaren "Robust statistical extension to TRELLIS motion correction in MRI", Proc. SPIE 7076, Image Reconstruction from Incomplete Data V, 70760H (5 September 2008); https://doi.org/10.1117/12.796814

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