Abstract #1620
Correction of B0 Phase Errors for Spiral-in/Spiral-out Acquisitions
Ryan K Robison 1 , Zhiqiang Li 1 , Michael Schr 1,2 , and James G Pipe 1
1
Neuroimaging Research, Barrow Neurological
Institute, Phoenix, Arizona, United States,
2
Philips
Healthcare, Cleveland, Ohio, United States
Spiral-in/spiral-out acquisitions can be affected by
artifacts that manifest differently between the
spiral-in and spiral-out portions of the acquisition. If
uncorrected these artifacts will be accentuated in the
final combined image. Time dependent phase errors from
B0 eddy currents are one source of artifacts that
manifest differently between spiral-in and spiral-out
acquisitions. These phase errors were measured and
corrected. The resulting images demonstrate improvements
in apparent resolution.
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