I cannot replicate this, eg

In matlab
a = fast_vol2mat(MRIread('gtm.nii.gz'));
a(1:10)
  Columns 1 through 7
    0.7957    1.0565    1.5711    1.7842    1.8625    1.9539    1.2499
  Columns 8 through 10
    1.3188    1.4063    1.2536

From gtm,.stats.dat
  1    2 Left-Cerebral-White-Matter      wm             25583 10872.101        0.796       0.1501
  2    7 Left-Cerebellum-White-Matter    wm              1472  691.994        1.057       0.1843
  3    8 Left-Cerebellum-Cortex          subcort_gm      5326 2833.077        1.571       0.1451
  4   10 Left-Thalamus-Proper            subcort_gm       643  333.888        1.784       0.1808
  5   11 Left-Caudate                    subcort_gm       353  117.232        1.863       0.1650
  6   12 Left-Putamen                    subcort_gm       576  256.726        1.954       0.1543
  7   13 Left-Pallidum                   subcort_gm       146   52.532        1.250       0.0782
  8   16 Brain-Stem                      subcort_gm      1139  517.830        1.319       0.2061
  9   17 Left-Hippocampus                subcort_gm       477  174.082        1.406       0.1226
 10   18 Left-Amygdala                   subcort_gm       186   65.184        1.254       0.0847

You can see that the values match




On 3/3/2020 12:39 PM, Laboratorio de Neurociencia Funcional wrote:

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Dear Freesurfer experts,
I have compared the PVC uptake values of gtm.stats with the values of
gtm.nii.gz with the function load_nii in matlab. I noted
that values in matlab are reversed, i. e., the first value in
gtm.stats matches with the last value in gtm.nii.gz and so on.

Could you confirm me that nopvc.nii.gz values are also reversed
when loaded with load_nii in matlab? I have no way to check this.

Thank you in advance.

Best, Marina


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