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Abstract #0817

Simultaneous multi-slice (SMS) accelerated EPI navigators for prospective motion correction in the brain

Himanshu Bhat 1 , M. Dylan Tisdall 2 , Stephen F Cauley 2 , Thomas Witzel 2 , Kawin Setsompop 2 , Andre J.W. van der Kouwe 2 , and Keith Heberlein 1

1 Siemens Healthcare, Charlestown, MA, United States, 2 Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, United States

The goal of this work was to use SMS acceleration to speed up the acquisition of EPI navigators. Validation studies were performed in phantoms and in-vivo to demonstrate that SMS accelerated navigators can lead to accurate motion detection over a range of motion values. Furthermore, prospective motion correction was demonstrated by adding SMS navigators into an inversion prepared gradient echo (MPRAGE) sequence.

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