[Freesurfer] Correcting Skull-Strip Errors - Watershed Algorithm Question

2017-03-22 Thread Abhinav Kurada
The initial running of recon-all autorecon-1 autorecon-2 for a sample scan resulted in a bad skull strip. I am attempting to troubleshoot the issue through running just the skull strip portion of the recon-all pipeline again, followed by adjusting the watershed parameters.  During re-running -s

Re: [Freesurfer] Qdec 1.5

2017-03-22 Thread Duy Nguyen
Dear Douglas Thank you for your response. I cannot run asegstats2table and aparcstats2table command outside of qdec. Best regards, Duy Nguyen *--v-- Peace --v--* *Duy Nguyễn * *Biomedical Engineering Department- IU HCMC* *Cell: (+84)90056* *Email: duy.nguyen...@gmail.com * On Thu, Mar 23,

Re: [Freesurfer] LME mass univariate model

2017-03-22 Thread Bronwyn Overs
Hi Mailing List, I am fitting an LME model with random effects for B0 and B2, so I am using the following to fit a spatiotemporal model: lhstats = lme_mass_fit_Rgw(X,[1 3],Y,ni,lhTh0,lhRgs,lhsphere); However, prior to this when i am computing the initial temporal covariance estimates, do the s

Re: [Freesurfer] Fw: PETsurfer surface based analysis

2017-03-22 Thread miracooloz
Hello Doug, I was able to solve the problem. It had to do with the gtmseg part of the pipeline. I had to re-run gtmseg again and mri_gtmpvc exited without error and produced all output. Thank you Best, Paul

Re: [Freesurfer] Qdec 1.5

2017-03-22 Thread Douglas Greve
don't know what is going on there. Can you run the asegstats2table command outside of qdec? On 3/17/17 8:29 AM, Duy Nguyen wrote: Dear FS Expert I am doing analysis from the group_analysis_tutorial data to practice and learn. However, I come across the error window like it shows on the att

Re: [Freesurfer] A Bug in Monte-Carlo Simulation.

2017-03-22 Thread Douglas Greve
not sure what is going on there. Can you send the full terminal output? Also can you email me the mri_glmfit-sim file? On 3/19/17 11:00 PM, June Kang wrote: The version downloaded in offical page. 6.0 stable for OS X. On Mar 20, 2017, at 11:02 AM, Douglas Greve mailto:gr...@nmr.mgh.harvard.e

Re: [Freesurfer] contrast between two independent CTh maps?

2017-03-22 Thread Uquillas, Federico D'Oleire
Ah I see. Okay, will give this a try. Thank you Doug! Best regards, Fred > On Mar 22, 2017, at 17:04, Douglas Greve wrote: > > when you ran mri_glmfit, you had to give it an input (eg, --y > group1.mgh) with all the subjects from group 1. You would have a similar > file for group2. You would

Re: [Freesurfer] Petsurfer mri_gtmpvc error

2017-03-22 Thread Douglas Greve
FWHM should be the impulse response FWHM for your scanner. This is a number (eg, the HR+ is about 6), not the string 'FWHM' On 3/22/17 4:16 PM, Agrawal, Shubhi (NIH/NINDS) [E] wrote: Hi, I am trying to run SGTM partial volume correction in Petsurfer by following the tutorial on the wiki. Ever

Re: [Freesurfer] Fw: PETsurfer surface based analysis

2017-03-22 Thread Douglas Greve
Can you tar up the output folder and send it to me at our file drop? https://gate.nmr.mgh.harvard.edu/filedrop2 Also, please send the following 3 files /net/synapse/nt/paul/Analysis/C6_01_001_140813/mri/gtmseg.mgz /net/synapse/nt/paul/Analysis/C6_01_001_140813/mri/gtmseg.ctab /net/synapse/nt/pau

Re: [Freesurfer] contrast between two independent CTh maps?

2017-03-22 Thread Uquillas, Federico D'Oleire
Hi Doug, What do you mean by combining all the data (and how would you suggest we go about this?)? And also how does one do a two-group test? Thank you! Best, Fred > On Mar 22, 2017, at 16:51, Uquillas, Federico D'Oleire > wrote: > > Dear FreeSurfer experts, > > I’ve been trying to find a

Re: [Freesurfer] contrast between two independent CTh maps?

2017-03-22 Thread Douglas Greve
when you ran mri_glmfit, you had to give it an input (eg, --y group1.mgh) with all the subjects from group 1. You would have a similar file for group2. You would then combine them into one file, eg mri_concat group1.mgh group2.mgh --o group1-and2.mgh you would then create a new FSGD file for bo

Re: [Freesurfer] Re. display SPM results on inflated surface?

2017-03-22 Thread Douglas Greve
t;> Douglas N. Greve, Ph.D. >> MGH-NMR Center >> greve at nmr.mgh.harvard.edu >> <https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer> >> Phone Number: 617-724-2358 >> Fax: 617-726-7422 >> >> >> __

Re: [Freesurfer] contrast between two independent CTh maps?

2017-03-22 Thread Douglas Greve
the easiest thing to do is to combine all the data together and do a two group test On 3/22/17 4:49 PM, Uquillas, Federico D'Oleire wrote: Dear FreeSurfer experts, I’ve been trying to find a way to get a map of the difference between two independent CTh association maps but can’t seem to fin

[Freesurfer] contrast between two independent CTh maps?

2017-03-22 Thread Uquillas, Federico D'Oleire
Dear FreeSurfer experts, I’ve been trying to find a way to get a map of the difference between two independent CTh association maps but can’t seem to find a solution. I have two maps of independent groups (one is N=15, the other N=20) I would like to compare. Is there maybe a way to do a sig1.m

Re: [Freesurfer] Fw: PETsurfer surface based analysis

2017-03-22 Thread miracle ozzoude
Never mind Doug. I was able to solve the problem. Best, Paul On Wed, Mar 22, 2017 at 3:34 PM, miracle ozzoude wrote: > Thank you Doug. I am trying to perform pvc for my pet data based on the > tutorial however, I keep getting this error: > > " mri_gtmpvc --i C6_01_001_140813_PET_AV45_coreg_avg.n

[Freesurfer] Petsurfer mri_gtmpvc error

2017-03-22 Thread Agrawal, Shubhi (NIH/NINDS) [E]
Hi, I am trying to run SGTM partial volume correction in Petsurfer by following the tutorial on the wiki. Every step preceding mri_gtmpvc has been successful and the coregistration looks good. the last step, mri_gtmpvc command gives an error- Segmentation fault (core dumped) This is the informa

[Freesurfer] Re. display SPM results on inflated surface?

2017-03-22 Thread Schoot, Lotte
> Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer -- next part -- An HTML attachment was scrubbed... URL: http://mail.nmr.mgh.harvard.edu/pipermail/freesurfer/attachm

Re: [Freesurfer] [FSL or FREESURFER] SIEMENS FIELDMAP B0 UNWARPING FOR DTI

2017-03-22 Thread Yendiki, Anastasia
This is the wrapper script that it’ll call, the input formats are explained here: http://surfer.nmr.mgh.harvard.edu/fswiki/epidewarp.fsl From: mailto:freesurfer-boun...@nmr.mgh.harvard.edu>> on behalf of VA Research mailto:n.n.di.methyl.tryptami...@gmail.com>> Reply-To: Freesurfer support lis

Re: [Freesurfer] Fw: PETsurfer surface based analysis

2017-03-22 Thread miracle ozzoude
Thank you Doug. I am trying to perform pvc for my pet data based on the tutorial however, I keep getting this error: " mri_gtmpvc --i C6_01_001_140813_PET_AV45_coreg_avg.nii.gz --reg C6_01_001_140813_PET_AV45_coreg_avg.reg.lta --psf 6mm --seg gtmseg.mgz --default-seg-merge --auto-mask PSF .01 --mg

Re: [Freesurfer] [FSL or FREESURFER] SIEMENS FIELDMAP B0 UNWARPING FOR DTI

2017-03-22 Thread VA Research
do I have to prepare the mag file and make it radians/s for FreeSurfer? like you do in FSL? with command fsl_prepare_fieldmap On Wed, Mar 22, 2017 at 7:35 AM, Yendiki, Anastasia < ayend...@mgh.harvard.edu> wrote: > Hi Joseph – You can use fugue as part of the preprocessing in TRACULA. > Search f

Re: [Freesurfer] Fw: PETsurfer surface based analysis

2017-03-22 Thread Douglas Greve
On 3/22/17 2:02 PM, miracle ozzoude wrote: Hello Doug, Thank you for the detailed reply. I do have other questions. 1) Can you confirm if this is the correct use of mris_preproc for Uncached PET data. mris_preproc --fsgd your.fsgd --target fsaverage --hemi lh --meas Pet --out lh.your.pet.00.

Re: [Freesurfer] Hippocampal Subfields Posterior Probability

2017-03-22 Thread Bharadwaj, Pradyumna - (prad)
Great! Thank you for taking that time to clarify that. -Prad From: freesurfer-boun...@nmr.mgh.harvard.edu on behalf of Iglesias Gonzalez, Eugenio Sent: Wednesday, March 22, 2017 11:34 AM To: Freesurfer support list Subject: Re: [Freesurfer] Hippocampal Subfie

Re: [Freesurfer] Hippocampal Subfields Posterior Probability

2017-03-22 Thread Iglesias Gonzalez, Eugenio
Hi again, Prad, In that case, you don’t need the discrete segmentations. Just look at the posteriors directly. Cheers, /Eugenio Juan Eugenio Iglesias ERC Senior Research Fellow Translational Imaging Group University College London http://www.jeiglesias.com http://cmictig.cs.ucl.ac.uk/ On 22 Ma

Re: [Freesurfer] Hippocampal Subfields Posterior Probability

2017-03-22 Thread Bharadwaj, Pradyumna - (prad)
Sorry about that. I should have stated what I was trying to do. I'm trying to see if the posterior probability changes when using a certain combination of the different T1 and T2 weighted scans that we have in our lab. I thought using the binary masks to extract the probabilities as they were th

Re: [Freesurfer] Hippocampal Subfields Posterior Probability

2017-03-22 Thread Iglesias Gonzalez, Eugenio
Hi Prad, The final probabilities are in the posterior files. There’s no need to binarize ?h.hippoSfLabels if what you’re interested in is the soft segmentations. Or maybe I’m missing something? What are you exactly trying to do? Cheers, /E Juan Eugenio Iglesias ERC Senior Research Fellow Translat

Re: [Freesurfer] Fw: PETsurfer surface based analysis

2017-03-22 Thread miracle ozzoude
Hello Doug, Thank you for the detailed reply. I do have other questions. 1) Can you confirm if this is the correct use of mris_preproc for Uncached PET data. mris_preproc --fsgd your.fsgd --target fsaverage --hemi lh --meas Pet --out lh.your.pet.00.mgh. This modification was made from the thicknes

Re: [Freesurfer] Hippocampal Subfields Posterior Probability

2017-03-22 Thread Bharadwaj, Pradyumna - (prad)
Hi Dr. Iglesias, Thank you for the overview of the labeling rules. I have also tried setting WRITE_POSTERIORS to 1 to write out the posteriors. I had a follow up question about obtaining the probabilities for the final subfield labels as available in the ?h.hippoSfLabels-T1.v10.mgz I use mr

Re: [Freesurfer] preproc-sess -per-run vs. -per-session

2017-03-22 Thread Feilong Ma
Thanks for the reply, Doug! Best, Feilong On Wed, Mar 22, 2017 at 1:24 PM, Douglas Greve wrote: > I think the motion correction works a little better if done to a reference > inside each run, and there's probably less interpolation in the end > > On 3/20/17 11:04 AM, Feilong Ma wrote: > > Hi Fr

Re: [Freesurfer] preproc-sess -per-run vs. -per-session

2017-03-22 Thread Douglas Greve
I think the motion correction works a little better if done to a reference inside each run, and there's probably less interpolation in the end On 3/20/17 11:04 AM, Feilong Ma wrote: Hi FreeSurfer Experts, I was reading the document of preproc-sess, and it seems -per-run is recommended inste

Re: [Freesurfer] Multiple comparisons

2017-03-22 Thread Douglas Greve
We don't have something explicitly to do this, but you can run FDR on it using either mri_fdr (use nomask for the mask) or you can load the sig.mgh file into matlab and run it there, eg, sig = MRIread('sig.mgh'); p = 10^-abs(sig.vol); fdrthresh = fast_fdrthresh(p); On 3/20/17 9:32 AM, Laura F

Re: [Freesurfer] Fw: PETsurfer surface based analysis

2017-03-22 Thread Douglas Greve
On 3/22/17 11:02 AM, miracoo...@gmail.com wrote: Sent from my BlackBerry 10 smartphone. *From: *miracle ozzoude *Sent: *Tuesday, March 21, 2017 7:41 PM *To: *Douglas N Greve *Subject: *PETsurfer surface based analysis Hello, I am working through the PETsurfer surface based analysis and i h

Re: [Freesurfer] Custom brain segmentation to equal sized regions

2017-03-22 Thread Douglas Greve
I don't think this will do it, and I don't think we have anything that will do this precisely. You can do something like it by running the xhemi stream http://surfer.nmr.mgh.harvard.edu/fswiki/Xhemi, mapping the lh and rh thickness to the lh for fsaverage_sym, then run the face parcellation on

Re: [Freesurfer] display SPM results on inflated surface?

2017-03-22 Thread Douglas Greve
If you have the T1 for the mni152 (which is somewhere in the bowels of the spm distribution), then you just run recon-all on it. I've done this for myself, so you can just download the result (which I have not checked thoroughly) from here https://gate.nmr.mgh.harvard.edu/safelinks/greve/mni152

Re: [Freesurfer] White matter volume in each lobe

2017-03-22 Thread Douglas Greve
not that I know of. I think you'll have to do it by hand (sorry) On 3/21/17 11:02 AM, Ahearn, T wrote: Hello I need separate grey and white volumes for the frontal and temporal lobes. I have values for grey volume from mri_annotation2label --subject 01 --hemi lh --lobesStrict lobar_annotat

Re: [Freesurfer] xhemi label

2017-03-22 Thread Douglas Greve
copy it to $FREESURFER_HOME/bin and then chmod a+x mris_apply_reg then rehash On 3/21/17 8:23 AM, Marissa Pifer wrote: Hi Doug, I'm not sure how to use this binary. Do I need to install it? Marissa On Fri, Mar 17, 2017 at 12:23 PM, Douglas N Greve mailto:gr...@nmr.mgh.harvard.edu>> wrot

Re: [Freesurfer] intensity normalization and GM exclusion

2017-03-22 Thread Bruce Fischl
Hi Meaghan it looks like the white surface is pretty accurate but the gm doesn't get out far enough. I would play with some of the expert options to mris_make_surfaces like max_gray_at_csf_border. If you upload a subject I can try it out and see if I can improve things and get back to you. c

[Freesurfer] Dimensions question

2017-03-22 Thread yusif Al-kheder
For a skull-stripped anatomical nifti file, What’s the difference between '91 x 109 x 91’ and 2mm x 2mm x 2mm? [image1.png] Youssif ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer

[Freesurfer] Fw: PETsurfer surface based analysis

2017-03-22 Thread miracooloz

Re: [Freesurfer] Dimensions question

2017-03-22 Thread Yendiki, Anastasia
The first is the number of voxels, the second is the size of a single voxel. From: mailto:freesurfer-boun...@nmr.mgh.harvard.edu>> on behalf of yusif Al-kheder mailto:yusi...@live.com>> Reply-To: Freesurfer support list mailto:freesurfer@nmr.mgh.harvard.edu>> Date: Wednesday, March 22, 2017 at

Re: [Freesurfer] TRACULA tract reconstruction

2017-03-22 Thread Yendiki, Anastasia
Hi Joëlle – What images do you pass as input to TRACULA? Do you pass the dicom itself, or a converted file? Happy to look at your dicom, if it’s anonymized. a.y From: mailto:freesurfer-boun...@nmr.mgh.harvard.edu>> on behalf of Joëlle Ismay Rosanne Van Der Molen mailto:joelle.vandermo...@etu.

Re: [Freesurfer] [FSL or FREESURFER] SIEMENS FIELDMAP B0 UNWARPING FOR DTI

2017-03-22 Thread Yendiki, Anastasia
Hi Joseph – You can use fugue as part of the preprocessing in TRACULA. Search for items with “b0” in the example config file: https://surfer.nmr.mgh.harvard.edu/fswiki/dmrirc Best, a.y From: mailto:freesurfer-boun...@nmr.mgh.harvard.edu>> on behalf of VA Research mailto:n.n.di.methyl.tryptami

Re: [Freesurfer] question about "mean curvatura"

2017-03-22 Thread Bruce Fischl
Hi Hui meancurv is the spatially smoothed mean curvature of the surface at each point (that is, the average of the two curvatures k1 and k2) cheers Bruce On Wed, 22 Mar 2017, 李慧 wrote: Dear FreeSurfer Group, Sorry for interrupting. I am Hui Li, a researcher fron Beijing, China, interesti