Re: [Freesurfer] Samseg lesion mask holes

2023-03-31 Thread Evie Neylon
External Email - Use Caution Hi Stefano, Thank you for your reply and explanation. The command I'm using to segment FLAIR is as follows: run_samseg --input T2_FLAIR.nii.gz --output samseg_outputs --threads 8 --lesion --lesion-mask-pattern 1 --threshold 0.3 --save-posteriors --s

Re: [Freesurfer] Samseg lesion mask holes

2023-03-29 Thread Cerri, Stefano,PHD
Hi Evie, --save-probabilities and --save-posteriors will save two different things for lesions. The former is an initialization of lesions based on intensity and location constraints, and the latter is a probability map of seg.mgz after we also introduce lesion shape constraints (Cf Fig.4 of h

[Freesurfer] Samseg lesion mask holes

2023-03-28 Thread Evie Neylon
External Email - Use Caution Dear experts, I am running SAMSEG to segment MS lesions from T2 FLAIR scans. I wanted to create a lesion mask in order to obtain lesion volumes and lesion counts, so I used mri_binarize on seg.mgz to obtain all voxels with the value 99. However, upon v