PSUdoMRI Simulator

Software for predicting the effect of electromagnetic fields on MR images.

We are making avialable an MRI simulator developed to accurately predict how MR images acquired with arbitrary pulse sequences are affected by distributions of direct-current (DC), switched-gradients, and radio-frequency (RF) fields used in MRI.

PSUdoMRI is capable of considering multiple RF coils in transmission and in reception, taking into account correlated noise between RF channels, and calculating the SAR distribution throughout the sample for arbitrary pulse sequences or field distributions.

Simple MATLAB graphical user interfaces let users create sample sequences and simple reconstructions. We provide a few sample field and tissue distributions, but the simulation engine is capable of considering any sequence, field, or sample geometry arranged in the proper format, as described in the manual.

Get the Code

The software available on this page is provided free of charge and comes without any warranty. CAI²R and NYU Grossman School of Medicine do not take any liability for problems or damage of any kind resulting from the use of the files provided. Operation of the software is solely at the user’s own risk. The software developments provided are not medical products and must not be used for making diagnostic decisions.

The software is provided for non-commercial, academic use only. Usage or distribution of the software for commercial purpose is prohibited. All rights belong to the author (Christopher Collins) and NYU Grossman School of Medicine. If you use the software for academic work, please give credit to the author in publications and cite the related publications.

Please spell out your affiliation (e.g. “New York University” rather than “NYU”).

Related Resource

We are also sharing simulation models for PSUdoMRI as a separate download.


Questions about these resources may be directed to Christopher M. Collins, PhD.