Note

This page is a reference documentation. It only explains the function signature, and not how to use it. Please refer to the user guide for the big picture.

brainprep.interfaces.freesurfer.localgi

brainprep.interfaces.freesurfer.localgi(output_dir, entities)

Local Gyrification Index (localGI or lGI).

It quantifies how much cortex is buried within the sulcal folds compared to the exposed outer surface - providing a localized version of the classical gyrification index [1].

Parameters:

output_dirDirectory

FreeSurfer working directory containing all the subjects.

entitiesdict

A dictionary of parsed BIDS entities including modality.

Returns:

commandlist[str]

LocalGI command-line.

outputstuple[File]

• left_lgi_file : File - The generated left hemisphere localGI file.

• right_lgi_file : File - The generated right hemisphere localGI file.

References

[1]

Marie Schaer, Meritxell Bach Cuadra, Lucas Tamarit, François Lazeyras, Stephan Eliez, and Jean-Philippe Thiran. A surface-based approach to quantify local cortical gyrification. IEEE Trans. Med. Imaging, 27(2):161–170, February 2008.