Application of k-space energy spectrum analysis for inherent and dynamic B0 mapping and deblurring in spiral imaging.

@article{Truong2010ApplicationOK,
  title={Application of k-space energy spectrum analysis for inherent and dynamic B0 mapping and deblurring in spiral imaging.},
  author={Trong-Kha Truong and Nan-Kuei Chen and Allen W. Song},
  journal={Magnetic resonance in medicine},
  year={2010},
  volume={64 4},
  pages={1121-7}
}
Spiral imaging is vulnerable to spatial and temporal variations of the amplitude of the static magnetic field (B(0)) caused by susceptibility effects, eddy currents, chemical shifts, subject motion, physiological noise, and system instabilities, resulting in image blurring. Here, a novel off-resonance correction method is proposed to address these issues. A k-space energy spectrum analysis algorithm is first applied to inherently and dynamically generate a B(0) map from the k-space data at each… CONTINUE READING