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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