sigpy.mri.rf.adiabatic.goia_wurst¶
-
sigpy.mri.rf.adiabatic.
goia_wurst
(n=512, dur=0.0035, f=0.9, n_b1=16, m_grad=4, b1_max=817, bw=20000)[source]¶ - Design a GOIA (gradient offset independent adiabaticity) WURST
- inversion pulse
Parameters: - n (int) – number of samples.
- dur (float) – pulse duration (s).
- f (float) – [0,1] gradient modulation factor
- n_b1 (int) – order for B1 modulation
- m_grad (int) – order for gradient modulation
- b1_max (float) – maximum b1 (Hz)
- bw (float) – pulse bandwidth (Hz)
Returns: - a (array): AM waveform (Hz)
- om (array): FM waveform (Hz)
- g (array): normalized gradient waveform
Return type: 3-element tuple containing
References
O. C. Andronesi, S. Ramadan, E.-M. Ratai, D. Jennings, C. E. Mountford, A. G. Sorenson. J Magn Reson, 203:283-293, 2010.