Abstract #0644
Motion Insensitive ACS Acquisition Method for in-plane and Simultaneous Multi-Slice Accelerated EPI
Himanshu Bhat 1 , Jonathan R. Polimeni 2 , Stephen F. Cauley 2 , Kawin Setsompop 2 , Lawrence L. Wald 2 , and Keith Heberlein 1
1
Siemens Medical Solutions USA Inc,
Charlestown, MA, United States,
2
Athinoula
A. Martinos Center for Biomedical Imaging, Department of
Radiology, Harvard Medical School, Massachusetts General
Hospital, Charlestown, MA, United States
Conventional ACS sampling methods for in-plane and
simultaneous multi-slice accelerated EPI are susceptible
to physiological or bulk subject motion. In this work we
propose a novel motion-insensitive ACS acquisition
technique called FLEET for highly accelerated EPI. The
performance of both conventional and FLEET ACS sampling
is evaluated with tSNR analysis done with and without
deliberate head nodding performed during ACS
acquisition. The conventional method and FLEET give
comparable results without motion, however the FLEET
method performs better in the presence of motion during
the ACS scan.
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