ISMRM 2015 Tractography challenge - Results details

Results for submission: 18_0

General connectivity metrics

Valid bundles:23 / 25
Invalid bundles:96
Valid Connections:25.403%
Invalid connections:51.511%
No connections:23.087%
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 141000 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) 3 0.002% 5.128% 1.381%
Parieto-Occipito Pontine Tract (left) 1803 1.279% 76.262% 66.483%
Cingulum (right) 1275 0.904% 46.255% 14.244%
Corpus Callosum 12751 9.043% 64.065% 23.204%
Anterior Commissure 0 0.000% 0.000% 0.000%
Fronto-Pontine Tract (right) 1731 1.228% 60.373% 36.480%
Posterior Commissure 0 0.000% 0.000% 0.000%
Inferior Cerebellar Peduncle (left) 381 0.270% 47.324% 49.260%
Fronto-Pontine Tract (left) 1040 0.738% 55.890% 49.831%
Uncinate Fasciculus (right) 182 0.129% 37.108% 8.034%
Inferior Longitudinal Fasciculus (right) 1893 1.343% 53.755% 38.287%
Cortico-Spinal Tract (right) 124 0.088% 39.412% 7.191%
Cortico-Spinal Tract (left) 440 0.312% 62.699% 41.765%
Inferior Longitudinal Fasciculus (left) 2343 1.662% 61.915% 29.865%
Superior Longitudinal Fasciculus (right) 3823 2.711% 75.600% 56.620%
Fornix 44 0.031% 12.561% 4.406%
Parieto-Occipito Pontine Tract (right) 141 0.100% 46.613% 18.264%
Optic Radiation (right) 805 0.571% 55.955% 37.218%
Uncinate Fasciculus (left) 355 0.252% 35.355% 12.243%
Superior Longitudinal Fasciculus (left) 3775 2.677% 74.811% 59.339%
Optic Radiation (left) 699 0.496% 67.431% 43.320%
Middle Cerebellar Peduncle 628 0.445% 49.781% 12.140%
Cingulum (left) 1470 1.043% 46.183% 20.501%
Inferior Cerebellar Peduncle (right) 91 0.065% 20.946% 18.589%
Superior Cerebellar Peduncle (left) 21 0.015% 22.751% 10.777%

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 24.41 17.70 0.03 90.00 20.67
Voxels with single fiber population 18.13 12.46 0.00 90.00 17.16
All voxels 19.29 13.22 0.00 90.00 18.02

Missing directions are penalized with the maximum 90 degree error.