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Abstract #2442

Rapid 3D Spoiled Steady-State Imaging with Yarn-Ball Acquisition

Robert W. Stobbe 1 and Christian Beaulieu 1

1 University of Alberta, Edmonton, Alberta, Canada

A novel multi-shot 'Yarn-Ball' technique is presented which facilitates efficient 3D k-space sampling through large loops with low acceleration. The differential equations underpinning this technique are described, and the number of trajectories required to fully sampling 3D k-space are compared to standard gradient echo. Unlike gradient echo, trajectory requirements can be dramatically reduced by >100x with readout duration increase. In the context of 3D spoiled steady-state imaging, Yarn-Ball allows the generation of much higher resolution images than is possible with standard gradient echo for the same TR and scan duration.

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