Design of broadband RF pulses with polynomial-phase response.

  title={Design of broadband RF pulses with polynomial-phase response.},
  author={Rolf F. Schulte and Anja Henning and Jeffrey Tsao and Peter Boesiger and Klaas P. Pruessmann},
  journal={Journal of magnetic resonance},
  volume={186 2},
The achievable bandwidth of common linear-phase RF pulses is limited by the maximum feasible B1 amplitude of the MR system. It has been shown previously, that this limitation can be circumvented by overlaying a quadratic phase in the frequency domain, which spreads the power across the pulse duration. Quadratic-phase RF pulses are near optimal in terms of achieving minimal B1max. In this work, it is demonstrated that further B1max reduction can be achieved by combining quadratic with higher… CONTINUE READING

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