Re: [Freesurfer] recon-all process still not finishing properly

2024-04-18 Thread Douglas N. Greve
not sure what is happening. You can run recon-all with -debug and capture the output (both stdout and stderr) into a file. This will cause it to print out huge amounts of text specifying what it is doing on each line. You should also see if there is some stderr output that is not being caught.

Re: [Freesurfer] Enorm threshold for dynamic PET images

2024-04-18 Thread Douglas N. Greve
Sorry, I don't know what you mean by enorm threshold. Can you elaborate? On 4/4/2024 4:39 PM, Sneha Pandya wrote: External Email - Use Caution Dear team, I am using mc-afni2 to perform motion correction on dynamic PET images (ref: petsurfer wiki page). I am planning to use an

Re: [Freesurfer] GLM Using 2 Surfaces - Thickness and Area

2024-04-18 Thread Douglas N. Greve
On 4/18/2024 1:59 PM, Tejaswi D. Sudhakar wrote: External Email - Use Caution Hello Freesurfer team, I am interested in doing one glm analysis using both the thickness and cortical surface area. My question is two-fold: First, is it possible to provide both the thickness and

Re: [Freesurfer] gunzip error in load_mgh.m when file path contains spaces

2024-04-18 Thread Douglas N. Greve
thanks, just checked in your change. On 4/17/2024 9:37 PM, Tyler Slouf wrote: External Email - Use Caution Hello FreeSurfer Developers, I found what I believe to be a bug. Typically I can load mgz files into my Matlab program without any trouble. But if the path containing the mgz

Re: [Freesurfer] Skin-Skull-Brain segmentation

2024-04-18 Thread Douglas N. Greve
You can try running samseg. This will generate most of the layers you want, but in segmentations. You will have to convert them to surfaces (eg, mri_tesssellate or mri_binarize with --surf output) On 4/15/2024 5:31 AM, XIE Jing wrote: External Email - Use Caution Hello all, We

Re: [Freesurfer] surface-based filtering

2024-04-18 Thread Douglas N. Greve
Yes, you can also run mris_fwhm --smooth-only --i input.surf-values.mgz --fwhm FWHM --s subject --hemi hemi --o output.surf-values-smoothed.mgz --cortex This will give the same result as mri_surf2surf On 4/12/2024 10:07 PM, Jiaen Liu wrote: External Email - Use Caution I found in

Re: [Freesurfer] BBRegistration with FSL topup

2024-04-18 Thread Douglas N. Greve
The vsm (voxel shift map) needs to be in the same voxel space as the fMRI (ie, it has to have the same voxel size, number of voxels, and the voxels must line up with the fMRI) On 4/11/2024 8:11 PM, Gianluca Guglietti wrote: External Email - Use Caution Hi, I had a question as to

Re: [Freesurfer] question about infantfreesurfer

2024-04-18 Thread Zollei, Lilla,Ph.D.
Hi Knut, Can you clarify what you mean by your question? Lilla From: freesurfer-boun...@nmr.mgh.harvard.edu on behalf of Knut J Bjuland Sent: Friday, April 5, 2024 2:38 PM To: freesurfer@nmr.mgh.harvard.edu Subject: [Freesurfer] question about infantfreesurfer

Re: [Freesurfer] Default intensity values for gray and white matter

2024-04-18 Thread Fischl, Bruce R.,PHD
Hi Sanna They were kind of hand tuned ages ago, but I'm pretty sure that they get re-estimated by a procedure that adapts to the intensities in the input images. They were probably tuned for a specific class of T1-weighted scans (like FLASH), but the adaptive estimation usually works well on a

[Freesurfer] GLM Using 2 Surfaces - Thickness and Area

2024-04-18 Thread Tejaswi D. Sudhakar
External Email - Use Caution Hello Freesurfer team, I am interested in doing one glm analysis using both the thickness and cortical surface area. My question is two-fold: First, is it possible to provide both the thickness and area files to mris_preproc and mri_surf2surf

[Freesurfer] Default intensity values for gray and white matter

2024-04-18 Thread Lokhandwala, Sanna
External Email - Use Caution Dear FreeSurfer developers, I am interested in understanding where the freesurfer default intensity values for gray and white matter specifically come from within the recon-all command. I understand the default intensity of white matter (mean) is

Re: [Freesurfer] vertices are -1 when using vol2label

2024-04-18 Thread Douglas N. Greve
vertices require a surface. There is no surface for cerebellum, so the vertices are all marked -1 to indicate that the vertex indices are not valid. The XYZ values are valid though On 4/9/2024 6:36 AM, Sam W wrote: External Email - Use Caution Hello! I'm trying to convert the