JHU ICBM tracts maxprob thr25 1mm Atlas

Full Quality Version: Download MP4

Overview

The JHU ICBM-DTI-81 white-matter tracts “maxprob thr25 1mm” atlas is a probabilistic diffusion tensor imaging–based parcellation of major human white-matter pathways, constructed from DTI data acquired on a cohort of healthy adults and registered to the ICBM-152 stereotactic template at 1 mm resolution; within each voxel, tract labels correspond to the most probable tract assignment, thresholded at a minimum of 25% probability. It delineates a set of canonical association, commissural, and projection fibers—including tracts such as the corticospinal tract, uncinate fasciculus, cingulum bundle, inferior fronto-occipital fasciculus, superior and inferior longitudinal fasciculi, corpus callosum subdivisions, and other major pathways—providing an anatomically informed reference for the spatial organization of white matter. The atlas was generated by manually and semi-automatically tracing tracts in individual DTI datasets, warping these into common space, and deriving voxelwise probability maps that summarize tract consistency across subjects. It is widely used for voxel-based and tract-based analyses in neuroimaging, including region-of-interest extraction of DTI metrics (e.g., FA, MD), alignment of structural connectivity findings with known pathways, and standardization of white-matter labeling in group studies and pipelines such as FSL and AFNI. Atlas Website

Overview generated by GPT-4o (2026).

Click any region name to view its full visualization and description.