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This method finds corresponding clusters across subjects. Currently, only one-to-one cluster's correspondences are available using the Hungarian algorithm. This method finds corresponding clusters across subjects. Currently, only one-to-one cluster's correspondences are available using the Hungarian algorithm. Importantly, by using our anatomical similarity metric, correspondences are found without the need of registration comparing clusters of streamlines from each subject's native space.

AnatomiCuts

AnatomiCuts correspondences

This method finds corresponding clusters across subjects. Currently, only one-to-one cluster's correspondences are available using the Hungarian algorithm. Importantly, by using our anatomical similarity metric, correspondences are found without the need of registration comparing clusters of streamlines from each subject's native space.

The Hungarian algorithm

The Hungarian algorithm finds corresponding clusters between two subjects.

AnatomiCuts_correspondences -s1 segmentation1.nii.gz -s2 segmentation2.nii.gz -c numClusters -h1 clusteringPath1  -h2 clusteringPath2 -m metric -o output.csv

Where

-s1 the segmentation to be used for anatomical similarity in subject one.

-s2 the segmentation to be used for anatomical similarity in subject one.

-h1 the path to the AnatomiCuts folder to be used for subject1.

-h2 the path to the AnatomiCuts folder to be used for subject2.

-m metric to be used: labels (anatomical similarity) or euclid (euclidean similarity).

-sym (under development) this flag will mirror the segmentation in subject 2 to find between hemisphere correspondences.

-o output csv file

References

V. Siless, J. Y. Davidow, J. Nielsen, Q. Fan, T. Hedden, M. Hollinshead, C. V. Bustamante, M. K. Drews, K. R. A. Van Dijk, M.A. Sheridan, R. L. Buckner, B. Fischl, L. Somerville, and A. Yendiki. 2017. “Registration-free analysis of diffusion MRI tractography data across subjects through the human lifespan.”

V. Siless, K. Chang, B. Fischl, and A. Yendiki. 2018. “AnatomiCuts: Hierarchical clustering of tractography streamlines based on anatomical similarity.” NeuroImage, 166, Pp. 32-45.

AnatomiCuts_correspondences (last edited 2019-07-26 10:48:16 by VivianaSiless)