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Abstract #3399

T2 Shuffling: Multicontrast 3D Fast Spin Echo Imaging

Jonathan I. Tamir 1 , Weitian Chen 2 , Peng Lai 2 , Martin Uecker 1 , Shreyas S. Vasanawala 3 , and Michael Lustig 1

1 Electrical Engineering and Computer Sciences, University of California, Berkeley, Berkeley, CA, United States, 2 Global Applied Science Laboratory, GE Healthcare, Menlo Park, CA, United States, 3 Radiology, Stanford University, Stanford, CA, United States

Fast Spin Echo (FSE) is widely used in MR imaging due to its speed and robustness to image artifacts. However, blurring due to T2 decay inhibits its use for 3D musculoskeletal imaging. By compensating for signal decay and reconstructing a time series of images, the blurring can be reduced. In this work we resample and reorder phase encodes over a longer echo train length to improve scan efficiency. We add a locally low rank constraint to improve the conditioning of the reconstruction, producing multicontrast 3D FSE images at clinically feasible scan times.

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