mgh.is.conformed: Determine whether an MGH volume is conformed.

In freesurferformats: Read and Write 'FreeSurfer' Neuroimaging File Formats

Determine whether an MGH volume is conformed.

Description

In the FreeSurfer sense, *conformed* means that the volume is in coronal primary slice direction, has dimensions 256x256x256 and a voxel size of 1 mm in all 3 directions. The slice direction can only be determined if the header contains RAS information, if it does not, the volume is not conformed.

Usage

mgh.is.conformed(mgh_header, voxel_size_tolerance = 1e-04)

Arguments

mgh_header	Header of the mgh datastructure, as returned by read.fs.mgh.
voxel_size_tolerance	double, the tolerance to accept when comparing the voxel size to the required value of '1.0'. Defaults to '1e-4'. Leave this alone unless you know what you are doing.

Value

logical, whether the volume is *conformed*.

freesurferformats documentation built on May 29, 2024, 5:29 a.m.