Difference between revisions of "DTI Tractography Challenge Guidelines"
| (8 intermediate revisions by the same user not shown) | |||
| Line 1: | Line 1: | ||
'''page under construction <br>''' | '''page under construction <br>''' | ||
| − | + | == Anatomical definition of the corticospinal tract == | |
| − | |||
| − | |||
The corticospinal tract is a collection of axons that arise from the cerebral cortex and course through the internal capsule, the cerebral peduncle of the midbrain, the ventral pons, the ventral surface of the medulla, the pyramidal decusssation, and terminate in the spinal cord. | The corticospinal tract is a collection of axons that arise from the cerebral cortex and course through the internal capsule, the cerebral peduncle of the midbrain, the ventral pons, the ventral surface of the medulla, the pyramidal decusssation, and terminate in the spinal cord. | ||
| − | + | == Tumor Segmentation== | |
In each clinical case, the tumor has been segmented using the method [ add ref]. The file patient_xxx-tumor.nhdr & raw is labelmap which contains the segmented structures. Each label map contains two labels: label #1 represents the solid part of the tumor; label #2 represents the cystic part of the tumor. | In each clinical case, the tumor has been segmented using the method [ add ref]. The file patient_xxx-tumor.nhdr & raw is labelmap which contains the segmented structures. Each label map contains two labels: label #1 represents the solid part of the tumor; label #2 represents the cystic part of the tumor. | ||
| − | + | =='''Submitted Results: File format and naming convention'''== | |
For each case, the results should be submitted in the following formats: 1) 3D coordinate of the tracts: vtkPolydata ASCII VTK file format; 2) enveloppe of the tracts: ITK-readable Nrrd file format | For each case, the results should be submitted in the following formats: 1) 3D coordinate of the tracts: vtkPolydata ASCII VTK file format; 2) enveloppe of the tracts: ITK-readable Nrrd file format | ||
| − | <br>Naming convention: | + | <br>Naming convention: |
| + | * zip archive file: miccaiDTIChallenge_firstAuthorName.zip | ||
| + | * VTK file: firstAuthorName_tract_coordinate.vtk | ||
| + | * Nrrd file: firstAuthorName_tract_enveloppe.nhdr and firstAuthorName_tract_enveloppe.nhdr | ||
| + | * PNG file: firstAuthorName_tract_axialView.png; firstAuthorName_tract_sagittalView.png; firstAuthorName_tract_coronalView.png | ||
| + | |||
| + | |||
| + | ==Evaluation== | ||
| + | |||
| + | The evaluation of the tractography results will be based on the following qualitative and quantitative criteria: | ||
| + | |||
| + | *'''Qualitative Assessment''' | ||
| + | Evaluation of tract reconstruction in each hemisphere, for patients and controls | ||
| + | |||
| + | #Anatomical correctness of the tract | ||
| + | #Presence of false-positive tracts | ||
| + | #Presence of false-negative tracts | ||
| + | |||
| + | Evaluation of the depiction of the spatial relationship between the tumor and the tract, in patient cases | ||
| + | |||
| + | #Depiction of the relation between the tract and the tumor | ||
| + | #Demonstration of tract displacement | ||
| + | #Demonstration of tumor infiltration | ||
| + | |||
| + | *'''Quantitative Assessment''' | ||
| + | Evaluation of tract reconstruction in each hemisphere, for patients and controls | ||
| − | + | #Dice coefficient for volumetric overlap | |
| − | + | #Closest point distance between bundles | |
| + | #Fiber profiles on Fractional Anisotropy (FA) | ||
| + | #Fiber profiles of Mean Diffusivity (MD) | ||
| + | #STAPLE sensitivity and specificity score | ||
Latest revision as of 20:28, 25 March 2011
Home < DTI Tractography Challenge Guidelinespage under construction
Contents
Anatomical definition of the corticospinal tract
The corticospinal tract is a collection of axons that arise from the cerebral cortex and course through the internal capsule, the cerebral peduncle of the midbrain, the ventral pons, the ventral surface of the medulla, the pyramidal decusssation, and terminate in the spinal cord.
Tumor Segmentation
In each clinical case, the tumor has been segmented using the method [ add ref]. The file patient_xxx-tumor.nhdr & raw is labelmap which contains the segmented structures. Each label map contains two labels: label #1 represents the solid part of the tumor; label #2 represents the cystic part of the tumor.
Submitted Results: File format and naming convention
For each case, the results should be submitted in the following formats: 1) 3D coordinate of the tracts: vtkPolydata ASCII VTK file format; 2) enveloppe of the tracts: ITK-readable Nrrd file format
Naming convention:
- zip archive file: miccaiDTIChallenge_firstAuthorName.zip
- VTK file: firstAuthorName_tract_coordinate.vtk
- Nrrd file: firstAuthorName_tract_enveloppe.nhdr and firstAuthorName_tract_enveloppe.nhdr
- PNG file: firstAuthorName_tract_axialView.png; firstAuthorName_tract_sagittalView.png; firstAuthorName_tract_coronalView.png
Evaluation
The evaluation of the tractography results will be based on the following qualitative and quantitative criteria:
- Qualitative Assessment
Evaluation of tract reconstruction in each hemisphere, for patients and controls
- Anatomical correctness of the tract
- Presence of false-positive tracts
- Presence of false-negative tracts
Evaluation of the depiction of the spatial relationship between the tumor and the tract, in patient cases
- Depiction of the relation between the tract and the tumor
- Demonstration of tract displacement
- Demonstration of tumor infiltration
- Quantitative Assessment
Evaluation of tract reconstruction in each hemisphere, for patients and controls
- Dice coefficient for volumetric overlap
- Closest point distance between bundles
- Fiber profiles on Fractional Anisotropy (FA)
- Fiber profiles of Mean Diffusivity (MD)
- STAPLE sensitivity and specificity score
