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Abstract #4246

Fast T1-Weighted Spin-Echo Imaging with Fat Water Separation Using A Spiral Readout

Zhiqiang Li 1 , Dinghui Wang 1 , Michael Schr 1,2 , Nicholas R Zwart 1 , and James G Pipe 1

1 Neuroimaging Research, Barrow Neurological Institute, Phoenix, AZ, United States, 2 Philips Healthcare, Cleveland, OH, United States

T1-weighted Cartesian SE imaging is sensitive to motion and flow artifacts. Several alternatives have been proposed including T1FLAIR PROPELLER and SE PROPELLER but each may have its limitations. Fat signal in T1-weighted brain imaging may be helpful or undesirable depending on the applications. But water/fat separation with current SE sequence results in long scan time. In this work we propose a SE technique employing a spiral readout with multiple TE shifts. The preliminary results demonstrate its insensitivity to flow artifacts, the capability for simultaneous water/fat separation, and the flexibility in scan time reduction.

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