Accurate field-mapping is critical in body imaging for both robust water–fat separation and accurate quantitative susceptibility mapping. The present work proposes a single-min-cut field-mapping method to improve field-map results in water–fat regions. The proposed method based on a variable layer graph construction, solves the phase-wrapping problem and yields directly into non-wrapped field-maps. In challenging areas with low SNR or strongly varying field-maps the accuracy is significantly increased, while the computational cost is drastically reduced.
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