Keywords: Quantitative Imaging, Quantitative Imaging, B0 static magnetic field mapping, bSSFP, ellipse, elliptical signal model
Motivation: High fidelity B0 field mapping is often desirable for corrections and contrast, although most methods available require addition image acquisitions.
Goal(s): To generate a robust B0 mapping approach that is quantitatively accurate, time-efficient, and allows further understanding of coil information.
Approach: The bSSFP geometric solution is leveraged to compute a B0 map from a novel off-resonance parameter calculation. The maps are validated via comparisons to standards and coil element-by-element phase images.
Results: Simulation, phantom, and in vivo data confirmed that the method for B0 mapping not only computes quantitatively-accurate field maps, but also permits estimation of other phase contributions including coil-specific phase offsets.
Impact: A robust B0 field mapping approach is proposed that facilitates research and clinical efforts seeking imaging techniques that minimize scan time and maximize practical data output.
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