Download SUIT deformation field for MNI-to-SUIT transforms — suit_deformation

Downloads the nonlinear deformation field needed to transform volumes from MNI152 space to SUIT cerebellar space. The files are cached in the user's data directory so they only need to be downloaded once.

Two MNI templates are supported:

"MNI152NLin6AsymC": FSL MNI152 template (used by FreeSurfer). Use this for FreeSurfer's Buckner cerebellar atlases.
"MNI152NLin2009cSymC": ICBM 2009c symmetric template.

Usage

suit_deformation_field(
  template = c("MNI152NLin6AsymC", "MNI152NLin2009cSymC"),
  cache_dir = NULL
)

Arguments

template: Which MNI template the source volume is in. Default "MNI152NLin6AsymC" (FreeSurfer/FSL).
cache_dir: Directory for caching downloaded files. Defaults to tools::R_user_dir("ggseg.extra", "data").

Value

Path to the downloaded deformation field NIfTI file.

Examples

if (FALSE) { # \dontrun{
xfm <- suit_deformation_field()
suit_vol <- transform_mni_to_suit(mni_volume, xfm)
} # }