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Abstract #0334

K-space Based Estimation for R2* mapping

Giang Chau Ngo 1,2 and Bradley P. Sutton 1,2

1 Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL, United States, 2 Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, United States

T2* maps are used in many applications from functional brain imaging to targeted contrast agents. However, in-plane magnetic field inhomogeneity leads to a non-exponential decay of the T2* signal. This work proposes a method to estimate T2* by taking into account intra-voxel magnetic gradients. A k-space estimation approach is developed, combined with a single shot multi-echo spiral out trajectory.

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