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Abstract #1637

Slice-wise Nyquist Ghost Correction for Slice-Accelerated EPI

Eric Peterson 1 , Samantha Holdsworth 1 , Rafael O'Halloran 1 , Julian Maclaren 1 , Eric Aboussouan 1 , William Grissom 2 , and Roland Bammer 1

1 Radiology, Stanford University, Stanford, CA, United States, 2 Biomedical Engineering, Vanderbilt, Nashville, TN, United States

When using slice-accelerated echo planar imaging (EPI), slice-wise Nyquist ghost correction requires extra scan time because it necessitates an additional pre-scan (reference scan) in addition to parallel imaging calibration. This work presents a method to perform slice-wise Nyquist ghost correction using the parallel imaging pre-scan. This obviates the Nyquist ghost correction pre-scan and also allows for Nyquist ghost correction before the parallel imaging is performed, which allows for standard parallel imaging reconstructions. More importantly, by not requiring an additional pre-scan scan, it allows for a faster, more streamlined scan session.

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