MIITRA atlas: Development and evaluation of high-resolution gray matter labels
Mohammad Rakeen Niaz1, Yingjuan Wu1, Abdur Raquib Ridwan1, Xiaoxiao Qi1, David A. Bennett2, and Konstantinos Arfanakis1,2
1Biomedical Engineering, Illinois Institute of Technology, Chicago, IL, United States, 2Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL, United States
High-resolution
gray matter labels were constructed for the MIITRA atlas. The new labels
allow segmentation of the gray matter of older adults that is in good agreement
with manually-edited Freesurfer segmentation.
Figure 1: Sagittal, coronal, and axial slices of the MIITRA
T1w and DTI templates, gray matter labels, and confidence maps of the gray
matter labels (average confidence 0.892). All resources were constructed in
0.5mm voxel-size using a super-resolution-based approach.
Figure
2: Box plots of the (A) Dice coefficient and (B) Jaccard coefficient for the
overlap between the MIITRA gray matter labels warped to an individual’s space
and the manually edited reference labels in that individual’s space.