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Abstract #1665

A single point, echo time independent water/fat separation method

Sjoerd Crijns 1 , Bjorn Stemkens 1 , Alessandro Sbrizzi 1,2 , Jan Lagendijk 1 , Peter Luijten 2 , Nico van den Berg 1 , and Anna Andreychenko 1

1 Radiotherapy, UMC Utrecht, Utrecht, Utrecht, Netherlands, 2 Radiology, UMC Utrecht, Utrecht, Utrecht, Netherlands

Dixon water/fat separation sequences usually need at least two images acquired at different TEs constrained to specific values, causing prolonged repetition and acquisition times and complicating application in dynamic imaging (e.g. DCE-MRI). We propose a single point water/fat separation method based on alternation of two RF pulses that introduces a spatial shift of fat with respect to water in the reconstructed image. We demonstrate the feasibility of this method and obtain in-phase water/fat separated images at an arbitrary echo time in a single acquisition.

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