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Abstract #1170

Hybrid K-space EPI (HyKE) Reconstruction for Accelerated Imaging

Tyler E Cork1,2, Matthew J Middione1, Michael Loecher1, Kévin J Moulin1, John M Pauly3, and Daniel B Ennis1,4
1Radiology, Stanford University, Stanford, CA, United States, 2Bioengineering, Stanford University, Stanford, CA, United States, 3Electrical Engineering, Stanford University, Stanford, CA, United States, 4Radiology, Veterans Affairs Health Care System, Palo Alto, CA, United States

Echo planar imaging (EPI) is amongst the fastest ways to reduce scan times for long imaging techniques, but it is also susceptible to geometric distortion caused by phase accrual while traversing k-space over long echo times (TE). The objective was to determine the feasibility of a new EPI data acquisition technique that is able to: (1) maintain the SNR efficiency compared to traditional EPI methods, and (2) create a break in the trajectory linearity to allow for geometric distortion correction from one acquisition. Herein, we demonstrate a feasible reconstruction pipeline.

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