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Abstract #0681

Water-Fat Separation in Spiral Magnetic Resonance Fingerprinting using Conjugate Phase Reconstruction

Kirsten Koolstra1, Andrew Webb1, Peter Koken2, Kay Nehrke2, and Peter Börnert1,2

1Radiology, Leiden University Medical Center, Leiden, Netherlands, 2Philips Research Hamburg, Hamburg, Germany

Water-fat separation can improve the quality of tissue parameter maps in quantitative imaging methods such as Magnetic Resonance Fingerprinting (MRF). We propose such a technique that uses the B0 map as prior information for spiral off-resonance correction through conjugate phase reconstruction, enabling efficient water-fat separation with only two echo points per frame, implemented in a single run MRF approach. With this technique, accurate tissue parameter maps can be produced in the presence of fat.

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