Differences between revisions 14 and 15
Deletions are marked like this. Additions are marked like this.
Line 19: Line 19:
View the original longitudinal file for MR1 as follows: Similarly, view the original longitudinal file for MR1 as follows:

top | Longitudinal Tutorial

Making FinalSurf edits

  • To follow this exercise exactly be sure you've downloaded the tutorial data set before you begin. If you choose not to download the data set you can follow these instructions on your own data, but you will have to substitute your own specific paths and subject names.

Below is a picture of how the longitudinal results for MR2 looked originally: see

tkmedit OAS2_0002_MR2.long.OAS2_0002 brainmask.mgz -aux brain.finalsurfs.mgz -surfs -segmentation aseg.mgz $FREESURFER_HOME/FreeSurferColorLUT.txt
  • Sample Slice 89 in brain.finalsurfs.mgz, coordinates: 124 138 89 (right hemi)


And here it is zoomed in:

Similarly, view the original longitudinal file for MR1 as follows:

tkmedit OAS2_0002_MR1.long.OAS2_0002 brainmask.mgz -aux brain.finalsurfs.mgz -surfs -segmentation aseg.mgz $FREESURFER_HOME/FreeSurferColorLUT.txt

After edits to both cross-sectional time points and the base have been done, the following commands should be run to re-create new long data sets: (Start with renaming the existing long data to something like _orig)

For MR2, you would do:

mv OAS2_0002_MR2.long.OAS2_0002 OAS2_0002_MR2.long.OAS2_0002_orig
recon-all -long OAS2_0002_MR2 OAS2_0002 -all

For MR1, you would do:

mv OAS2_0002_MR1.long.OAS2_0002 OAS2_0002_MR1.long.OAS2_0002_orig
recon-all -long OAS2_0002_MR1 OAS2_0002 -all

In the re-run the edits are automatically transferred from the cross-sectional. Also the fixed surfaces will be used from the base for initialization producing fixed results in the long run. The results of long re-run can be checked as follows for MR2:

tkmedit OAS2_0002_MR2.long.OAS2_0002_fixed brainmask.mgz -aux brain.finalsurfs.mgz -surfs -segmentation aseg.mgz $FREESURFER_HOME/FreeSurferColorLUT.txt 

The following shows pictures of sample slice 89 from OAS2_0002_MR2.long.OAS2_0002_fixed in the brain.finalsurfs.mgz volume at coordinates 112 166 89 :

Zoomed in, we have:

For MR1, look at the results of re-running here:

tkmedit OAS2_0002_MR1.long.OAS2_0002_fixed brainmask.mgz -aux brain.finalsurfs.mgz -surfs -segmentation aseg.mgz $FREESURFER_HOME/FreeSurferColorLUT.txt 

FsTutorial/LongFinalSurflONG (last edited 2011-06-24 17:41:52 by SaradaSivaraman)