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Abstract #1099

Field-Mapping-Embedded EPI for Geometric Distortion Correction

Didi Chi1, Yasmin Blunck1,2, Rebecca Glarin2, Catherine E. Davey1,2, Daniel Staeb3, and Leigh A. Johnston1,2
1Department of Biomedical Engineering, University of Melbourne, Parkville, Australia, 2Melbourne Brain Centre Imaging Unit, University of Melbourne, Parkville, Australia, 3MR Research Collaborations, Siemens Healthcare Pty Ltd, Melbourne, Australia


A Field-Mapping-Embedded (FME) EPI sequence is proposed in which the map is acquired during EPI acquisition without increasing scan time, using phase-encoded phase correction navigators. Results from in vivo experiment demonstrate accurate measurement and robust geometric distortion that performs favourably in comparison with existing techniques that require additional scans.

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