Abstract #1553
Achieving Greater SPEED with Iterations between Object and K-space
Qing-San Xiang 1
1
Radiology, University of British Columbia,
Vancouver, British Columbia, Canada
Skipped Phase Encoding and Edge Deghosting (SPEED) can
accelerate MRI with a single coil. Previously, SPEED
sparsely sampled 3 interleaved datasets with skip size N
and relative offsets along PE, and resolved aliasing
ghosts by solving linear equations pixel-by-pixel. In
this study, it is demonstrated that SPEED can be
performed with only 1 dataset, similar to that used in
GRAPPA except from only one receiver coil, achieving
greater acceleration. The new algorithm imposes partial
knowledge of the data in both reciprocal Fourier
domains, and finds a global answer through
straightforward iterations between Object and K-space
(iOK).
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