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Abstract #3246

Optimized 2D radial CAIPIRINHA for cardiac perfusion MRI

Ye Tian1,2, Ganesh Adluru2, Jason Mendes2, and Edward DiBella2

1Physics and Astronomy, University of Utah, Salt Lake City, UT, United States, 2Radiology and Imaging Sciences, University of Utah, Salt Lake City, UT, United States

We propose an optimized offset golden angle trajectory of 3-slice radial CAIPI for more uniform distribution of phase modulated rays. Both computer simulation and phantom scan demonstrate that our proposed method has less artifact. Simulation studies show a 41% reduction in aliasing energy when compared to conventional golden angle trajectory. As well, optimization with an asymmetric echo readout resulted in a reduction of acquisition time by 15% with little sacrifice of image quality. These two methods can benefit simultaneous multi-slice perfusion acquisitions.

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