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Abstract #4248

Local Resolution Adaptation for Curved Slice Echo Planar Imaging

Hans Weber 1 , Jakob Asslnder 1 , Sebastian Littin 1 , Jrgen Hennig 1 , and Maxim Zaitsev 1

1 Department of Radiology, Medical Physics, University Medical Center Freiburg, Freiburg, Germany

The ExLoc technique allows for excitation and geometrically matched local encoding of curved slices based on set of nonlinear magnetic encoding fields. For robust sequences such as gradient echo, the variation in image resolution resulting from the field nonlinearity can be compensated by the local FOV technique. In this study we explore the applicability of the local FOV technique to ExLoc echo planar imaging. ExLoc echo planar imaging is in particular promising for curved slice functional imaging. However, the underlying continuous trajectory is highly sensitive to B0 inhomogeneities.

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