Graner_QA_tools

This repository is meant to house some basic MRI quality assurance tools. Each sub-directory has its own README for specific information on the code contained therein.

mri_quickgifs.py

This script reads in a 4D .nii or .nii.gz file and creates some gifs for very basic visual QA.
It produces gifs of:

1. The center slice for each axis across each time point.
2. All slices across each axis for the temporal mean image, the temporal standard deviation image, and the temporal SNR image.
3. The same as number 2 but calculated after the first 4 time points of the image have been removed (to possibly account for non-steady state TRs).

percsigchange.py

This script reads in various things from a FEAT output directory and calculates the voxel-wise percent signal change for a given EV of the design matrix.
Output is a 3D NIFTI image.