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Abstract #2444

A Spiral Spin-Echo Sequence for Fast T2-Weighted Imaging with Improved Contrast

Zhiqiang Li 1 , Dinghui Wang 1 , John P Karis 2 , and James G Pipe 1

1 Imaging Research, Barrow Neurological Institute, Phoenix, AZ, United States, 2 Neuroradiology, Barrow Neurological Institute, Phoenix, AZ, United States

T2-weighted TSE is a routine clinical tool for neuroimaging. TSE generates slightly different contrast than conventional SE. TSE can also incorporate the mDixon technique to provide fat/water imaging, but at the cost of prolonged scan time. In this project, we propose a spiral SE sequence for enhanced T2 contrast and fast scan speed. Preliminary results showed increased T2 contrast with spiral SE in tissues with increased ion deposition. Its also demonstrated that the SNR of spiral SE is close to TSE even its scan time is shorter. Therefore, spiral SE is a potential alternative to TSE for T2-weighted imaging.

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