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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