Getting Started

Installing TorchSim

TorchSim is available on PyPi

pip install torchsim

Development Version

If you want to modifiy the torchsim code base

git clone https://github.com/INFN-MRI/torchsim
pip install -e ./torchsim[test, dev, doc]

Basic Usage

Using TorchSim, we can quickly implement and run MR simulations. We also provide pre-defined simulators for several applications:

import numpy as np
import torchsim

# generate a flip angle pattern
flip = np.concatenate((np.linspace(5, 60.0, 300), np.linspace(60.0, 2.0, 300), np.ones(280)*2.0))
sig, jac = torchsim.mrf_sim(flip=flip, TR=10.0, T1=1000.0, T2=100.0, diff=("T1","T2"))

This way we obtained the forward pass signal (sig) as well as the jacobian calculated with respect to T1 and T2.