Abstract #1805

SNR and Banding Artifact Reduction Analysis of Phase-Cycled Elliptical Signal Model bSSFP

Steven T. Whitaker¹, Meredith Taylor¹, Haonan Wang¹, and Neal K. Bangerter¹

¹Electrical Engineering, Brigham Young University, Provo, UT, United States

Balanced steady-state free precession (bSSFP) provides high signal in short scan times. A new method for combining four or more phase-cycled bSSFP acquisitions was recently proposed that uses an elliptical signal model (ESM) of the bSSFP signal. In this study, we compare the SNR performance and effectiveness at reducing banding artifact of the ESM, complex sum, and sum-of-squares techniques across a range of T1 and T2 values, flip angles, and base SNR levels. Although ESM produces near perfect band removal in high SNR situations, it breaks down for certain tissues and in low SNR situations.

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