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Abstract #2680

Fully-Refocused Multi-Slice Ultrafast 3D MRI by Spatiotemporal Encoding

Rita Schmidt1, Lucio Frydman1

1Chemical Physics, Weizmann Institute of Science, Rehovot, Israel

Recent studies based on spatiotemporal encoding (SPEN) principles showed that many of the echo planar imaging (EPI - the leading ultrafast experiment) challenges can be alleviated, particularly if implemented in a full-refocusing mode. The present work extends this imaging modality by introducing a variety of new 3D multi-slice schemes, employing either inversion or for lower Specific Absorption Rate stimulated echo pulses, and are timed to fulfill the demands of full-refocusing. The work confirmed the advantages of these new imaging modalities with in vivo animal and human scans performed at 3T and 7T, demonstrating higher robustness of the SPEN comparing EPI.