Abstract #4249

Impacts of Longitudinal Coil Encoding on Simultaneous Multi-Slice (SMS) Head MRI

Yunsuo Duan^1,2, Feng Liu^1,2, Rachel Marsh^1,2, Mathhew Riddle^1,2, Gaurav Patel^1,2, Alayar Kangarlu^1,2, Lawrence S. Kegeles^1,2, and John Thomas Vaughan Jr.³

¹Division of Translational Imaging, Department of Psychiatry, Columbia University, New York, NY, United States, ²MRI Research Center, New York State Psychiatric Institute, New York, NY, United States, ³Columbia MR Research Center, Columbia University, New York, NY, United States

Synopsis

Keywords: RF Arrays & Systems, RF Arrays & SystemsCoil encoding in the longitudinal direction (z-direction) plays an important role in SMS MRI quality. Although many head coil arrays have been reported, systematic research on impacts of coil encoding in the longitudinal direction on SMS imaging remains insufficient. We present a comparison study of coil encoding for head arrays. Our experimental results showed that, to achieve quality images, the mulitband factor should be equal to or less than the number of coil rows. In extreme cases, the mulitband factor should not exceed 1.5 times the number of coil rows.

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