Dear FreeSurfers,

I wan´t to extract adc values from newly segmented brainstem substructures by using

mri_segstats --seg $brainstem_subs --ctab $FSCLUT --id 173 174 175 178 --seg-erode 1 --i $outdir_dtirecon/adc_anat.mgh  --mul 1000 --sum $outdir_stat/adc_brainstem_subs.stats

However, based on the fact that the seg volume is much smaller (173x221x140) than my input adc-file (256x256x256) I get an ERROR: dimension mismatch between input volume and seg !!

Do you have any suggestions to overcome this problem?

Thanks in advance,

TomP