White Matter Tract Probability Maps and ROIs for PyAFQ from ORG and AAL Atlases

John Kruper provides probability maps, endpoints, and region-of-interest (ROI) files for four white matter fasciculi, designed for use with the pyAFQ software. The dataset is 1.5 MB and was last updated on May 25, 2026. It is derived from a combination of streamlines in the O'Donnell Research Group (ORG) atlas and endpoint regions from the Automated Anatomical Labeling (AAL) atlas.

Use Cases

• Tractography analysis of the vertical occipital fasciculus based on provided probability maps.
• Segmentation of white matter pathways using the included region-of-interest (ROI) files.
• Integration of atlas-derived endpoints from the AAL atlas for connectivity studies.
• Validation of diffusion MRI tractography pipelines using pre-defined fasciculus maps.

Strengths

• Dataset is small (1.5 MB), facilitating quick download and inspection.
• Clear attribution and citation requirements are provided for the underlying atlases.
• Files are provided in a format (GZ) compatible with neuroimaging software stacks.

Limitations

• Row count and specific column-level documentation are unknown, requiring manual inspection after download.
• The description does not specify the number of subjects or scans used to generate the probability maps.
• Data may reflect methodological biases inherent to the source ORG and AAL atlases.

Provenance

Source

Derived from the O'Donnell Research Group (ORG) Atlas and the Automated Anatomical Labeling (AAL) Atlas.

Collection Method

Combination of streamlines from the ORG atlas and endpoint regions from the AAL atlas.

Freshness

Last updated 2026-05-25 20:05:40; freshness should be verified.