v3.6.1 Slicer Registration Library Case 05:
Inter-subject Knee MRI


subject 1		subject 1

The final goal is to align a segmentation prior model/atlas to aid in cartilage segmentation.

MRI, knee, inter-subject, segmentation

fixed: T1 SPGR , 0.9375 x 0.9375 x 1.4 mm voxel size, axial. + surface model from femur & tibia segmentation.
moving: T1 SPGR , 0.9375 x 0.9375 x 1.2 mm voxel size, sagittal. + surface model from femur & tibia segmentation.

Open case scene file or import image data + surface models
Open Registration / Surface Registration module
1. Input Surface: S02_femur
2. Target Surface: S01_femur
3. Output Transform: create new transform, rename to "Xf1_surf_S2-S1"
4. Select/check Mean distance mode: RMS
5. Leave defaults: iterations: 50, landmarks: 200
6. Select/check Start by matching centroids
7. Select/check Check mean distance
8. Click: Apply; process duration: ~ seconds
Go to the Data module
1. find the newly created transform node "Xf1_surf_S2-S1" and drag the "S02_femur" model node (and all other S02 entities) inside the transform.
2. for the 3D viewer turn on the visibility of the surface models (should be on already)
3. the surfaces for the two femur models should now align in basic position and orientation
for additional details see tutorial downloads below

Projects:RegistrationLibrary:RegLib C05