RF gradient waveform design (pulpy.grad)

The module contains functions and classes for MRI gradient pulse design.

Trajectory and Gradient Design Functions

MRI gradient and excitation trajectory design

pulpy.grad.waveform.min_trap_grad	Minimal duration trapezoidal gradient designer.
pulpy.grad.waveform.trap_grad	General trapezoidal gradient designer for total target area (for rewinders)
pulpy.grad.waveform.spiral_varden	Variable density spiral designer.
pulpy.grad.waveform.spiral_arch	Analytic Archimedean spiral designer.
pulpy.grad.waveform.epi	Basic EPI single-shot trajectory designer.
pulpy.grad.waveform.rosette	Basic rosette trajectory designer.
pulpy.grad.waveform.stack_of	Function for creating a 3D stack of ____ trajectory from a 2D [Nt 2] trajectory.
pulpy.grad.waveform.spokes_grad	Spokes gradient designer.
pulpy.grad.waveform.traj_complex_to_array	Function to convert complex convention trajectory to [Nt 2] trajectory
pulpy.grad.waveform.traj_array_to_complex	Function to convert [Nt 2] convention traj to complex convention

Trajectory and Gradient Optimization Functions

Utilities for optimizing existing gradient waveforms, such as M. Lustig’s min-time-gradient designer

pulpy.grad.optim.min_time_gradient

Given a k-space trajectory c(n), gradient and slew constraints.