TemplateFlow Naming

Who is this tutorial for?

Anyone trying to understand the naming structure in TemplateFlow.

Naming information

TemplateFlow generally follows the BIDS naming structure, but has a few deviations (e.g. the tpl key). Here we outline the most common names that are found in TemplateFlow.

Common key names using in TemplateFlow:

Key	Description
tpl	The space of the template.
res	Resolution index. See template_description.json within each template for more information about what the index specifies.
atlas	Name of an atlas.
desc	Additional information about the file to differentiate it from other files.

Common suffixes used in TemplateFlow:

Suffix	Description
dseg	discrete segmentation
pseg	probability segmentation
mask	binary mask
xfm	transform file
T2w	T2 weighted image
T1w	T1 weighted image

Common file-formats used in TemplateFlow:

Extension	Description
.nii.gz	Image
.tsv	Tabular information
.json	Meta-information
.h5	Transform file

Thus a template with the following name: tpl-test_res-01_atlas-myatlas_desc-200nodes_dseg.nii.gz would be a NIfTI image containing discrete segmentation of “myatlas” which contains 200nodes. And it is in the template space “test”. The resolution information will be found in the dataset_description.json file under ‘01’.