Hello freesurfer experts,

I am trying to extract an average percent signal change from a functional roi label I created in tkmedit using fsaverage. I followed previously discussed methods:

1) mri_label2vol --label <name of label> --temp fsaverage/mri.2mm/orig.mgz --regheader fsaverage/mri/orig.mgz --o <name of label mask>

2) I checked (tkmedit fsaverage orig.mgz -overlay <label mask> -fminmax .5 1) and the label looked fine

3) I ran mri_segstats --i ces.nii.gz --seg <label mask from above> --id 1 --avgwf ces.label.dat

ces.nii.gz is the file from my group analysis (isxconcat-sess) using the correct contrast

It returns with this error:

ERROR: dimension mismatch between input volume and seg

input 163842 1 1

seg 76 76 93

Is there something I am doing wrong here?

Also of note I tried using the following commands:

1) funcroi-config -label <label mask created from above mri_label2vol> -analysis <analysis directory> -roi <name of roicfg file>

2) funcroi-sess -sf sessid - roi <roicfg file from above>

But this returns with this error:

ERROR: cannot find /Volumes/VA_Imaging/Projects/dmiller/COGCON/FSFAST/CC_001_recon/label/label_lh_ACC_correct_mask.mgz

Any suggestions would be extremely helpful.

Thanks,

Danielle

Ph.D. Program in Behavioral Neuroscience
Boston University School of Medicine L-815
72 E. Concord St
Boston, MA 02118

VA Boston Healthcare System Jamaica Plain
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