I am trying to convert Brodmann area 4a and 4p to .nii file format in native space. I have used to following syntax:
tkregister2 --mov ${SUBJECTS_DIR}/mri/rawavg.mgz
--noedit --s [SUBJECT_ID] --regheader --reg ./register.dat
mri_label2vol --label [PATH-TO-LABEL-FILE]
--temp ${SUBJECTS_DIR}/mri/rawavg.mgz --subject [SUBJECT_ID] --hemi lh --o [OUTPUT-FILE-NAME]
--proj frac 0 1 .1 --fillthresh .0 --reg [PATH-TO-register.dat-FILE]
This is the result: https://dl.dropbox.com/u/6747155/BA4a.png
As you can see, there are 'missing' voxels in the volume: it is not one smooth shape. However, when I convert aseg or aparc structures to volumes, I don't have this problem. Is it possible to get a a smooth, fully filled shape from a Brodmann label?
Thanks in advance,
Vincent