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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