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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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