An internal reference model-based PRF temperature mapping method with Cramer-Rao lower bound noise performance analysis.

@article{Li2009AnIR,
  title={An internal reference model-based PRF temperature mapping method with Cramer-Rao lower bound noise performance analysis.},
  author={Cheng Li and Xinyi Pan and Kui Ying and Qiang Zhang and Jing An and Dehe Weng and Wen Qin and Kuncheng Li},
  journal={Magnetic resonance in medicine},
  year={2009},
  volume={62 5},
  pages={1251-60}
}
The conventional phase difference method for MR thermometry suffers from disturbances caused by the presence of lipid protons, motion-induced error, and field drift. A signal model is presented with multi-echo gradient echo (GRE) sequence using a fat signal as an internal reference to overcome these problems. The internal reference signal model is fit to the water and fat signals by the extended Prony algorithm and the Levenberg-Marquardt algorithm to estimate the chemical shifts between water… CONTINUE READING
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