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Abstract #3785

Performance Comparison of Analytical Solutions for bSSFP Signal Demodulation

Michael N Hoff 1 , Jalal B Andre 1 , and Qing-San Xiang 2

1 Radiology, University of Washington, Seattle, Washington, United States, 2 Physics, University of British Columbia, Vancouver, British Columbia, Canada

Two unique analytical techniques have shown to demodulate balanced steady state free precession (bSSFP) images of their dependence on magnetic field inhomogeneity and mitigate subsequent artifacts. Here both the Algebraic and Geometric solutions are compared through simulation and in vivo application, with a focus on evaluating artifact correction, solution error, and solution variability as a function of tissue and noise level. A hybrid Geometric-Algebraic solution is formulated to exploit the strengths of both solutions and minimize reconstructed image variance, yielding a robust solution when compared to standard complex averaging of phase-cycled bSSFP images.

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