LCN Cortical Lobes Dataset
The LCN-CortLobes dataset is a collection of manually-inspected cortical lobe labels created from FreeSurfer-processing the T1w MR images of 35 subjects, ages 64 - 96, originating from the ADNI and OASIS datasets. The set is intended to supplement the Mindboggle-101 dataset of cortical labels Klien and Tourville, 2012, which lack image data of subjects over the age of 61, and lack image data acquired on GE scanners. Unlike the Mindboggle set, only the cortical lobes (frontal, parietal, temporal and occipital) have been manually inspected. The lobe labels are composed from the freesurfer-generated cortical regions, following the DKT labeling protocol, as described in the appendix of the Klein and Tourville paper. The DKT cortical regions in the LCN-CortLobes dataset have not been manually inspected.
The set is freely available for download (see Data Download below).
Background
Methods
Results
Data Download
The set includes the following files:
- demographics.tsv - spreadsheet of info on the set's 35 subjects:
- subject_id
- age (64 - 96)
- sex (M or F)
- manufacturer (GE, Siemens or Philips)
- field_strength (1.5 or 3)
- diagnosis (CN = cognitively normal, MCI = mild cognitive impairment, LMCI = late-stage MCI, AD = Alzheimer's Disease)
- source (ADNI or OASIS)
<subject_id>/mri - folder containing:
- orig.mgz - the T1w input
- aseg.DKTatlas+aseg.mgz - the labeled volume of DKT cortical regions and subcortical structure segmentations (note: not an inspected file)
- aseg.DKTlobes+aseg.mgz - the labeled volume of cortical lobes and subcortical structure segmentations (note: not an inspected file)
<subject_id>/label - folder containing:
?h.DKTlobes.annot - the surface labels for the cortical lobes, manually inspected
- ?h.aparc.DKTatlas.annot - the surface labels for the DKT cortical regions (note: not manually inspected)
- lobesQA - folder containing snapshots taken of the cortical surface showing the lobes, used in the manual inspection process
Conflict of Interest Statement