New subject: MRI_segstats for adc.nii from dt recon - increasing decimal digits

11 Oct 2016


      Hi!
I ran mri_segstats as instructed in the wiki to extract ADC values from adc.nii. And as you can see below in my output, I think the decimal digits are truncated and missing the following decimal values. Is there an option or other way to get around this problem and extract ADC values from the ROIS with greater precision?  Thank you!
mri_segstats \
    --seg $SUBJECTS_DIR/$subj/mri/wmparc2diff.mgz \
    --ctab $FREESURFER_HOME/FreeSurferColorLUT.txt \
    --id 251 --id 3021 --id 3024 --id 3030 --id 12 --id 4 \
    --i adc.nii --sum adc.stat
# ColHeaders  Index SegId NVoxels Volume_mm3 StructName Mean StdDev Min Max Range
29 3001       344     2752.0  wm-lh-bankssts                     0.0007     0.0001     0.0006     0.0009     0.0003
 30 3002       450     3600.0  wm-lh-caudalanteriorcingulate      0.0009     0.0003     0.0006     0.0026     0.0020
 31 3003       851     6808.0  wm-lh-caudalmiddlefrontal          0.0007     0.0001     0.0005     0.0010     0.0005
 32 3005       337     2696.0  wm-lh-cuneus                       0.0008     0.0001     0.0006     0.0011     0.0005
 33 3006        82      656.0  wm-lh-entorhinal                   0.0009     0.0001     0.0008     0.0016     0.0008