Analytical Three-point Water-fat Imaging with Multi-peak Fat Model

We propose an analytical approach of three-point water-fat Dixon imaging with a known multi-peak fat model. This approach works with flexible even and uneven TE increments. By selecting appropriate TE points, spatial phase unwrapping can be avoided. This method solves the quadratic equations of water and fat. If the TE points are selected such that the magnitude of fat fluctuates significantly, a substantial portion of pure water and pure fat voxels can be identified according to the asymmetry between water and fat. The efficiency and robustness of the subsequent post-processing will thus be enhanced.

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