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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