Hi Randy,

"seg.mgz" is the "hard segmentation",  with lesion labeled as 99.

You have all the volumes in "samseg.stats".

If you want segmentation maps (values between 0 and 1), you should add the flag --save-posteriors to run_samseg. They will be saved in the samseg output directory under the "posteriors" folder. 

You can get a lesion segmentation mask by binarizing the lesion probability map with mri_binarize.

Best,
Stefano

Dear experts

I was able to get SAMSEG --lesion to work on WSL (did not crash once I used float images instead of 16bit usign), but all that's being written out are listed below:


Folder: D:\0007_Subjects-FS\T1T2-lesion-float\
Files:
cost.txt
gaussians.rescaled.txt
mode01_bias_corrected.mgz
mode01_bias_field.mgz
mode01_scaling.txt
mode02_bias_corrected.mgz
mode02_bias_field.mgz
mode02_scaling.txt
samseg.stats
samseg.talairach.lta
sbtiv.stats
seg.mgz
template.lta
template_coregistered.mgz
template_transforms.mat
Since this is the first time got --lesion to run, I have no idea what the output "should" be.? Shouldn't some sort "lesion mask" be written out?
Thanks in advance for any insights/comments you might have
-Randy


XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
SNIPPET FROM THE END OF THE "SUCCESSFUL" SAMSEG --lesion run
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

run_samseg -o $SUBJECTS_DIR/T1T2-lesion-float -i o_ADNI_002_S_4654__MRI-m072_float.nii rT1_o_ADNI_002_S_4654__MRI-m072_FLAIR_float.nii --pallidum-separate --lesion --lesion-mask-pattern 0 1 --threshold 0.7

....................................
....................................

Sample 44 times
Sample 45 times
Sample 46 times
Sample 47 times
Sample 48 times
Sample 49 times
Sample 50 times
thresholding posterior of? Lesions with threshold: 0.7
Constructing image-to-world transform from header information (o_ADNI_002_S_4654__MRI-m072_float.nii)
Read image: o_ADNI_002_S_4654__MRI-m072_float.nii
using default intracranial structures to compute sbtiv measure
run_samseg complete: 0:34:36.159030
daedalus@DESKTOP-TILLA3B:/usr/local/freesurfer/7-dev/subjects$

....................................

YAY!
....................................

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