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Abstract #1310

Imaging intracortical structure using navigator-based, motion and B0-corrected T2*-weighted MRI at 7 T

Jiaen Liu1, Peter van Gelderen1, Jacco A. de Zwart1, and Jeff H. Duyn1
1AMRI, LFMI, NINDS, National Institutes of Health, Bethesda, MD, United States

High-resolution T2*-weighted 7 T MRI can be used to delineate intracortical structure owning to its high signal-to-noise and contrast-to-noise ratio. However, subject motion remains a major challenge to obtain reliable high-resolution data; the long scan time and increased sensitivity of T2*-weighted signal at 7 T to motion and motion-induced B0 fluctuation make high-resolution T2*-weighted MRI particularly motion sensitive. In this study, the performance of a previously developed navigator-based motion and B0 correction approach was evaluated for intracortical imaging.

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