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Abstract #0833

Retrospective Motion Correction of MPnRAGE Studies in Children

Andrew L. Alexander 1,2 , Janet E Lainhart 1 , Audra Sterling 1 , Brittany G Travers 1 , Abigail Freeman 1 , and Steven R. Kecskemeti 1

1 Waisman Center, University of Wisconsin, Madison, WI, United States, 2 Medical Physics and Psychiatry, University of Wisconsin, Madison, WI, United States

Head motion is a significant challenge particularly for neuroimaging studies of young and intellectually impaired children. This study investigates the application of a retrospective motion correction algorithm for 3D T1-weighted imaging using MPnRAGE, which is an inversion recovery prepared method with 3D radial k-space sampling. This correction significantly improved the quality of MPnRAGE images obtained on four children that moved during their studies. The correction did not cause any deleterious effects on image quality.

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