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Abstract #0818

On the Resilience of GS-bSSFP to Motion and other Noise-like Artifacts

Michael N Hoff 1 , Jalal B Andre 1 , and Qing-San Xiang 2,3

1 Radiology, University of Washington, Seattle, Washington, United States, 2 Physics, University of British Columbia, Vancouver, British Columbia, Canada, 3 Radiology, University of British Columbia, Vancouver, British Columbia, Canada

A geometric solution (GS) to balanced steady state free precession (bSSFP) signal modulation in MRI has recently shown to additionally mitigate motion artifacts. The underlying mechanism behind its correction of noise-like artifacts is explored through simulations that permit evaluation of the GS solution performance as a function of the base image noise radiality relative to the spokes used for GS localization. It is discovered that the GS is resilient to any such radially-oriented noise, indicating GS-bSSFP applications in clinical scenarios that may suffer from noise-like artifacts such as those caused by patient motion, flow, and RF interference.

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