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Abstract #2054

Eight fold acceleration for isotropic T2w and T2FLAIR imaging using Multi-Contrast Second-Order Directional Total Generalized Variation (dTGV).

Youngwook Kee1, Junghun Cho2, Thanh Nguyen1, Pascal Spincemaille1, and Yi Wang1

1Weill Cornell Medical College, New York, NY, United States, 2Cornell University, Ithaca, NY, United States

We propose a second-order directional total generalized variation (dTGV) that makes use of directional edge information in T1w to reconstruct highly undersampled T2w and T2FLAIR data. This allows a further doubling of the acquisition speed over the standard four fold accelerated protocol. The proposed dTGV regularizer promotes structural similarity between contrasts.

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