ISMRM 2015 Tractography challenge - Results details

Results for submission: 9_4

General connectivity metrics

Valid bundles:24 / 25
Invalid bundles:139
Valid Connections:51.830%
Invalid connections:40.769%
No connections:7.402%
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 550363 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) 163 0.030% 15.554% 6.903%
Parieto-Occipito Pontine Tract (left) 1356 0.246% 16.599% 15.473%
Cingulum (right) 8861 1.610% 33.241% 20.515%
Corpus Callosum 123072 22.362% 59.535% 52.758%
Anterior Commissure 1 0.000% 1.223% 0.382%
Fronto-Pontine Tract (right) 15239 2.769% 47.514% 40.467%
Posterior Commissure 0 0.000% 0.000% 0.000%
Inferior Cerebellar Peduncle (left) 4509 0.819% 52.309% 53.536%
Fronto-Pontine Tract (left) 10832 1.968% 48.283% 61.717%
Uncinate Fasciculus (right) 5955 1.082% 54.458% 48.797%
Inferior Longitudinal Fasciculus (right) 15989 2.905% 63.892% 78.478%
Cortico-Spinal Tract (right) 243 0.044% 5.623% 2.956%
Cortico-Spinal Tract (left) 227 0.041% 9.059% 2.981%
Inferior Longitudinal Fasciculus (left) 21421 3.892% 72.800% 80.315%
Superior Longitudinal Fasciculus (right) 14780 2.686% 55.571% 87.779%
Fornix 1682 0.306% 27.152% 15.871%
Parieto-Occipito Pontine Tract (right) 3152 0.573% 29.098% 28.966%
Optic Radiation (right) 4553 0.827% 36.803% 40.336%
Uncinate Fasciculus (left) 4550 0.827% 42.564% 27.984%
Superior Longitudinal Fasciculus (left) 13904 2.526% 55.608% 70.800%
Optic Radiation (left) 2461 0.447% 19.549% 29.227%
Middle Cerebellar Peduncle 20631 3.749% 68.116% 46.519%
Cingulum (left) 9317 1.693% 31.144% 19.941%
Inferior Cerebellar Peduncle (right) 957 0.174% 20.831% 19.347%
Superior Cerebellar Peduncle (left) 1397 0.254% 52.528% 27.621%

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 26.32 17.59 0.04 90.00 22.89
Voxels with single fiber population 37.24 29.46 0.03 90.00 28.66
All voxels 35.92 26.98 0.03 90.00 28.25

Missing directions are penalized with the maximum 90 degree error.