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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