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Abstract #2489

Water Fat Separation with BLADE Based on Two Points Dixon Technique

Dehe Weng1, 2

1Beijing MRI Center for Brain Research, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China; 2Siemens Shenzhen Magnetic Resonance Ltd, Shenzhen, Guangdong, China

BLADE based on two points Dixon is proposed, two echoes are acquired to create time dependent phase shifts caused by water fat chemical shift, they are called in-phase and out-of-phase images. The in-phase image is reconstructed with re-gridding, while the out-of-phase image is reconstructed by using all blades from in-phase image for phase correction. Sign detection based on region growing is used to correct the out-of-phase image before the calculation of water and fat images, making this method insensitive to inconsistent error or eddy current.