Abstract #1099

Field-Mapping-Embedded EPI for Geometric Distortion Correction

Didi Chi¹, Yasmin Blunck^1,2, Rebecca Glarin², Catherine E. Davey^1,2, Daniel Staeb³, and Leigh A. Johnston^1,2

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

Synopsis

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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