Hello Freesurfer community

 

I am trying to transform a label file obtained in subject native surface space to subject native volume space. 

 

This label file was obtained through binarizing the subject lh.sulc morphological data through the function write.fs.label from R package freesurferformats, in the left hemisphere, resulting in a binary label for all sulci in the subject. Visual quality control of the label file through Freeview was adequate: I can load the surface label file with any surface of the subject.

 

Now, I would like to map the corresponding voxels that belong to sulci in the left hemisphere of this subject.

 

I tried to convert the label to volume using mri_label2vol first, but got the following error message

            could not parse 48510th line '1e+05 -37.5524826049805 -5.55967617034912 18.56817436218261' in label file

 

I then tried to first convert the file to annot format using mris_label2annot and then convert to volume using mri_aseg2aparc. Similarly, mris_label2annot threw the error

            could not parse 48510th line '1e+05 -37.5524826049805 -5.55967617034912 18.56817436218261' in label file

 

The list described similar errors but no obvious solution that I can access right now e.g. having a developer inspect the label file.

 

I would love to get any pointer as to why the label file may have been unparse-able to Freesurfer tools.

 

Sincerely

 

Yigu