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Abstract #0621

Rapid volumetric 3D MRI via simultaneous-multi-slab, multi-echo spatiotemporal encoding (SMS-ME SPEN)

Lingceng Ma1,2, Martins Otikovs1, Samuel F Cousin3, Gilad Liberman4, Qingjia Bao1, and Lucio Frydman1
1Department of Chemical and Biological Physics, Weizmann Institute of Science, Rehovot, Israel, 2College of Electronic science and technology, Xiamen University, Xiamen, China, 3Centre de RMN à Très Haut Champs, Lyon, France, 4Massachusetts General Hospital, Boston, MA, United States

SPatiotemporal ENcoding (SPEN) is a 2D single-shot MRI method with higher immunity to artifacts than EPI-based counterparts. The present study extends SPEN scans to 3D volumetric measurements, to achieve imaging over a 3rd dimension at higher resolution in minimal acquisition times. simultaneous multi-slab (SMS) and multi-echo (ME) kz-encoding procedures are here combined to cope with the SAR complications that would ensue from simply repeating 2D acquisitions over multiple slices. A framework to appropriately reconstruct and process 3D SMS-ME SPEN data to ensure the image quality by taking motion artifacts derived from different dimensions into account is also proposed, and demonstrated.

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