XD-GRASP: Golden-angle radial MRI with reconstruction of extra motion-state dimensions using compressed sensing.

@article{Feng2016XDGRASPGR,
  title={XD-GRASP: Golden-angle radial MRI with reconstruction of extra motion-state dimensions using compressed sensing.},
  author={Li Feng and Leon Axel and Hersh Chandarana and Kai Tobias Block and Daniel K. Sodickson and Ricardo Otazo},
  journal={Magnetic resonance in medicine},
  year={2016},
  volume={75 2},
  pages={
          775-88
        }
}
PURPOSE To develop a novel framework for free-breathing MRI called XD-GRASP, which sorts dynamic data into extra motion-state dimensions using the self-navigation properties of radial imaging and reconstructs the multidimensional dataset using compressed sensing. METHODS Radial k-space data are continuously acquired using the golden-angle sampling scheme and sorted into multiple motion-states based on respiratory and/or cardiac motion signals derived directly from the data. The resulting… CONTINUE READING
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