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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