Abstract #0603
Slab Segmented Edge-preserving QSM Method
Fei Cong 1 , Bo Wang 1 , Xiaohong Joe Zhou 2 , Yan Zhuo 1 , and Yongquan Ye 3
1
Institute of Biophysics, Chinese Academy of
Sciences, Chaoyang District, Beijing, China,
2
Department
of Radiology and Center for MR Research, University of
Illinois Medical Center, Chicago, IL, United States,
3
Department
of Radiology, School of Medicine, Wayne State
University, Detroit, MI, United States
A new edge-preserving method for quantitative
susceptibility mapping (QSM) is proposed, which uses 3D
slab segmented Wiener filtered phase data as input and
the convex half-quadratic regularizing algorithm to
suppress the artifacts when solving the inverse problem
by using ill-conditioned Greens function kernel.
Compared to current QSM methods, this edge-preserved
method reserves the high spatial frequency details for
veins in the final susceptibility maps. The comparisons
between quadratic regularized and edge-preserved methods
of the whole brain are presented, and the feasibility
and future work are discussed.
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