Numerical evaluation of image homogeneity, signal-to-noise ratio, and specific absorption rate for human brain imaging at 1.5, 3, 7, 10.5, and 14T in an 8-channel transmit/receive array.

@article{Cao2015NumericalEO,
  title={Numerical evaluation of image homogeneity, signal-to-noise ratio, and specific absorption rate for human brain imaging at 1.5, 3, 7, 10.5, and 14T in an 8-channel transmit/receive array.},
  author={Zhipeng Cao and Joshua H. Park and Zang-Hee Cho and Christopher M. Collins},
  journal={Journal of magnetic resonance imaging : JMRI},
  year={2015},
  volume={41 5},
  pages={1432-9}
}
PURPOSE To predict signal-to-noise ratio (SNR) trends and absorbed energy in magnetic resonance imaging (MRI) of the brain up to 14T. MATERIALS AND METHODS A human head in an eight-channel transmit/receive coil was simulated with Maxwell and Bloch equations to determine excitation homogeneity with radiofrequency (RF) shimming, image homogeneity, SNR, and absorbed energy in MRI from 1.5 to 14T considering realistic field distributions and relaxation properties. RESULTS RF shimming alone… CONTINUE READING

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