sigpy.mri.rf.sim.abrm_nd¶

sigpy.mri.rf.sim.abrm_nd(rf, x, g)[source]¶

N-dim RF pulse simulation

Assumes that x has inverse spatial units of g, and g has gamma*dt applied.

Assumes dimensions x = […,Ndim], g = [Ndim,Nt].

Parameters:

rf (array) – rf waveform input.
x (array) – spatial locations.
g (array) – gradient array.

Returns:

2-element tuple containing

a (array): SLR alpha parameter.
b (array): SLR beta parameter.

References

Pauly, J., Le Roux, Patrick., Nishimura, D., and Macovski, A.(1991). ‘Parameter Relations for the Shinnar-LeRoux Selective Excitation Pulse Design Algorithm’. IEEE Transactions on Medical Imaging, Vol 10, No 1, 53-65.