No. I just checked, they are not identical. Although some of numbers are the same, many are different.

Xiaojiang

Are the other results identical? Eg, lh.aparc.stats?

On 4/17/2020 10:49 AM, Xiaojiang Yang wrote:

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Dear Freeserfer developers,

I have run recon-all for a bunch of subjects on the same machine for several times. When I use the “mris_anatomical_stats” to calculate the statistics (specifically, I am interested in average cortical thickness), I found that for the same subject I got different results, as shown below:

  $ mris_anatomical_stats -b QEN001 lh

    …

  128449  86239  243375  2.588 0.876     0.123     0.026 1496   133.3  /xxx…/subjects/QEN001/surf/lh.white

$

$ mris_anatomical_stats -b QEN001_old lh

   …

  128449  86241  229554  2.404 0.835     0.123     0.026 1496   133.3 /xxx…/subjects/QEN001_old/surf/lh.white

The results shows that some of the stats numbers ( such as the number of vertices) are the same, but the “average cortical thickness +- standard deviation (mm)” are different, and they differ quite a lot.

I have tried several subjects; some of them get the all-the-same results, some of them not.

I am sure the subjects and the corresponding images are the same. Are these expected results?

Thanks!

Xiaojiang