Abstract #0071

Propeller Echo-Planar Time-resolved Imaging with Dynamic Encoding (PEPTIDE)

Merlin J Fair¹, Fuyixue Wang^1,2, Zijing Dong^1,2, Berkin Bilgic¹, Timothy G Reese¹, and Kawin Setsompop^1,2

¹A.A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Boston, MA, United States, ²Harvard-MIT Health Sciences and Technology, MIT, Cambridge, MA, United States

Echo-Planar Time-resolved Imaging (EPTI) is a recent multi-shot EPI-based approach that allows extremely rapid acquisition of distortion and blurring free multi-contrast imaging and mapping. In this work, a motion robust extension to EPTI, termed PEPTIDE, is presented. Combining Propeller-like rotations into the EPTI sampling strategy, this technique brings significant tolerance to shot-to-shot motion and B₀ phase variations, as well as opening up opportunities for further acceleration.

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