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Abstract #3324

Quantitative susceptibility mapping using piecewise gradient weighting

Zhiwei Zheng 1 , Shuhui Cai 1 , Congbo Cai 2 , and Zhong Chen 1

1 Department of Electronic Science, Xiamen University, Xiamen, Fujian, China, 2 Department of Communication Engineering, Xiamen University, Xiamen, Fujian, China

Quantitative susceptibility mapping has found many promising research and clinical applications recently. However, efficient reconstruction method of susceptibility map remains necessary. We propose to reconstruct susceptibility map using a piecewise gradient from estimated susceptibility itself. The gradually varied weighting is different from the traditional binary weighting. Our method is compared to morphology enabled dipole inversion (MEDI) method, and the results indicate that our method has a better performance in susceptibility reconstruction.

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