Introduction
The GIFTI file format was an designed by the Data Format Working Group (DFWG), an initiative by the NIH, USA. GIFTI files use the XML format to save surface meshes, functional, statistical and label files for cortical surfaces. The specification can be downloaded from NITRC: https://www.nitrc.org/frs/download.php/2871/GIFTI_Surface_Format.pdf.
| Part of surface | BrainVoyager format | GIFTI format | NIfTI intent code |
| Polygon mesh | *.srf | *.surf.gii | NIFTI_INTENT_POINTSET |
| Curvature | *_CURVATURE.smp | *.shape.gii | NIFTI_INTENT_SHAPE |
| Functional data (time series) | *.mtc | *.time.gii | NIFTI_INTENT_TIME_SERIES |
| Statistical data | *.smp | *.func.gii | NIFTI_FIRST_STATCODE - NIFTI_LAST_STATCODE |
| Region-of-interest | *.poi | *.label.gii | NIFTI_INTENT_LABEL |
GIFTI in BrainVoyager
Previously, GIFTI could be converted to BrainVoyager and reverse via a plugin. GIFTI files (*.gii) are native in BrainVoyager 23.2+. Load via the Meshes > Load GIFTI Mesh...
Latest update: 19-08-2024