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Abstract #3678

A Phase unwrapping Method by Phase Partition and Local Polynomial Fitting with Application to Abdominal Quantitative Susceptibility Mapping

Cheng Junying1, Xu Man1, Mei Yingjie2, Liu Liang1, Feng Yanqiu3, and Cheng Jingliang1
1Magnetic Resonance Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China, 2Philips Healthcare, Guangzhou, China, 3School of Biomedical Engineering, Southern Medical University, Guangzhou, China

The accurate recovery of underlying true phase is vital for a large number of applications, such as water/fat separation, quantitative susceptibility mapping and brain imaging. In this work, we propose a 3D phase unwrapping method based on phase partition and local polynomial fitting. The simulated and in vivo experiments demonstrate the proposed method can obtain perfect unwrapped results even in the regions with low SNR and rapidly changed phase, and can be applied to the abdominal QSM.

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