ISMRM 2015 Tractography challenge - Results details

Results for submission: 9_2

General connectivity metrics

Valid bundles:23 / 25
Invalid bundles:162
Valid Connections:31.471%
Invalid connections:62.796%
No connections:5.733%
Valid connections through a wrong path: 0.000% (not relevant anymore)

Individual bundles statistics

Number of streamlines found for each of the groundtruth bundles in this submission.

This submission contained 545440 streamlines.

Bundles shown in red were not found in the submission.

BundleCount% of total
streamlines
Overlap (% of GT)Overreach (% of GT)
Superior Cerebellar Peduncle (right) 104 0.019% 22.542% 11.383%
Parieto-Occipito Pontine Tract (left) 1485 0.272% 54.837% 45.781%
Cingulum (right) 3622 0.664% 40.030% 29.116%
Corpus Callosum 75362 13.817% 77.588% 93.964%
Anterior Commissure 0 0.000% 0.000% 0.000%
Fronto-Pontine Tract (right) 8146 1.493% 68.054% 61.772%
Posterior Commissure 0 0.000% 0.000% 0.000%
Inferior Cerebellar Peduncle (left) 1762 0.323% 50.854% 71.284%
Fronto-Pontine Tract (left) 4497 0.824% 66.090% 75.564%
Uncinate Fasciculus (right) 2519 0.462% 61.660% 65.931%
Inferior Longitudinal Fasciculus (right) 12563 2.303% 83.434% 145.933%
Cortico-Spinal Tract (right) 190 0.035% 14.136% 4.755%
Cortico-Spinal Tract (left) 183 0.034% 17.775% 8.922%
Inferior Longitudinal Fasciculus (left) 12370 2.268% 84.072% 124.904%
Superior Longitudinal Fasciculus (right) 13275 2.434% 75.557% 179.979%
Fornix 672 0.123% 34.191% 29.795%
Parieto-Occipito Pontine Tract (right) 1364 0.250% 57.135% 53.228%
Optic Radiation (right) 1896 0.348% 45.846% 55.503%
Uncinate Fasciculus (left) 1615 0.296% 48.630% 38.259%
Superior Longitudinal Fasciculus (left) 12011 2.202% 71.439% 158.717%
Optic Radiation (left) 1498 0.275% 44.003% 60.706%
Middle Cerebellar Peduncle 13048 2.392% 81.072% 73.699%
Cingulum (left) 2842 0.521% 35.762% 28.974%
Inferior Cerebellar Peduncle (right) 471 0.086% 28.362% 26.961%
Superior Cerebellar Peduncle (left) 163 0.030% 28.739% 17.137%

Angular error metrics

Voxelwise angular errors between the main local tractogram fiber directions and the respective ground truth fiber directions.

ROIMeanMedianMinMaxStandard deviation
Voxels with crossing fibers 27.75 18.60 0.03 90.00 23.51
Voxels with single fiber population 41.96 41.19 0.02 90.00 28.89
All voxels 40.42 37.16 0.02 90.00 28.70

Missing directions are penalized with the maximum 90 degree error.