Custom 429-region brain parcellation used for structural connectivity analysis

Contributed by aaewarren on Nov. 30, 2021

Collection: The Optimal Target and Connectivity for

Description: Structural connectivity analyses were performed using a custom, 429-region brain parcellation which combined four brain atlases, together covering cortical and subcortical grey matter outside the thalamus. These atlases were: 1. Parcel labels 1:358 = the HCPMMP1/Glasser atlas of the cortex (edited to remove "lh.???" and "rh.???" parcels). This is a volumetric version of the original surface-based atlas. For further details, refer to: https://figshare.com/articles/dataset/HCP-MMP1_0_volumetric_NIfTI_masks_in_native_structural_space/4249400. 2. Parcel labels 357:396 = the 3T Scale IV Melbourne Subcortex Atlas (edited to remove parcels within the thalamus). This volumetric atlas can be downloaded from here: https://github.com/yetianmed/subcortex. 3. Parcel labels 397:420 = segmentation of cerebellar lobules performed using CERES/Volbrain software. This volumetric segmentation can be performed here: https://www.volbrain.upv.es. 4. Parcel labels 421:429 = the Harvard Ascending Arousal Atlas of brainstem nuclei. This volumetric atlas can be downloaded from here: https://www.nmr.mgh.harvard.edu/resources/aan-atlas. Note that all connectivity analyses were performed in each subject's native diffusion MRI space, following nonlinear warping of atlas labels from template space to subject native brain space. The parcellation uploaded here is provided in Montreal Neurological Institute (MNI) ICBM 152 Nonlinear 6th-generation asymmetric template space (http://nist.mni.mcgill.ca/atlases/) and saved at a voxel resolution of 1mm x 1mm x 1mm.

Tags: parcellation dbs ceres aan mni melbourne subcortex hcpmmp1 glasser

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