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Abstract #3419

Two-Dimensional Coil-signature-based Phase Cycled Reconstruction for Inherent Correction of Echo-Planar Imaging Nyquist Ghost Artifacts

Silu Han1, Mahesh Bharath Keerthivasan2, Chidi Patrick Ugonna1, and Nan-kuei Chen1
1Biomedical Engineering Department, The University of Arizona, Tucson, AZ, United States, 2Medical Imaging Department, The University of Arizona, Tucson, AZ, United States

A coil-signature-based phase cycled correction method has been developed for Nyquist artifact removal in echo planar imaging (EPI). In our study, we investigated a novel coil-signature-based Nyquist artifact correction method that can be applied to EPI integrating various acceleration schemes including through-plane Multi-band Imaging (MB) and in-plane parallel SENSitivity Encoding Imaging (SENSE). Our method uses a coil-signature-based phase-cycled reconstruction without requiring EPI reference scans, and can inherently correct 2D phase errors. Our results show that the developed method can effectively reduce EPI Nyquist artifacts under different acceleration approaches.

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