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Abstract #1480

Synthetic MRI of the spine using outer volume suppression and virtual coil concepts to further increase scan productivity

Suchandrima Banerjee1, Ken-pin Hwang2, Peng Lai1, Marcel Warntjes3, and Ajit Shankaranarayanan1

1Global MR Applications & Workflow, GE Healthcare, Menlo Park, CA, United States, 2Department of Imaging Physics, University of Texas M.D. Anderson Cancer Center, Houston, TX, United States, 3SyntheticMR AB, Linköping, Sweden

Several methods for rapid simultaneous quantification of proton density, T1 and T2 maps from a single acquisition have emerged recently, allowing for retrospective synthesis of MR images with any desired contrast weighting from these maps. This work adapts a 2D fast spin echo based mapping method to spine MRI where scans are typically long and prone to artifacts. Outer volume suppression was incorporated to be able to save time by encoding only the anatomy of interest without aliasing concerns. Interleaved k-t sampling and virtual coil methods were explored to overcome limited coil acceleration capability and to further increase scan productivity.

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