Re: [Freesurfer] mri_normalize -conform question

2006-06-26 Thread Sebastian Moeller
Hi Bruce, On 26. Jun 2006, at 02:30 Uhr, Bruce Fischl wrote: Hi Sebastian, why do you want to run mri_normalize on non-conformed volumes? It wasn't really built for it. Well I have monkey data, which I feed into freesurfer, so only few of the automatic step actually work for me. Therefore I

Re: [Freesurfer] -notalairach error?

2006-06-26 Thread Doug Greve
Hi Joao, Sorry for the late response, but I've been away for two weeks ... When recon-all is first run (and there is not talairach.xfm), it will create talairach.auto.xfm and copy that to talairach.xfm. In subsequent runs, recon-all will create a new talairach.auto.xfm. Immediately prior to t

Re: [Freesurfer] Volume estimates i Freesurfer

2006-06-26 Thread Doug Greve
These are computed and saved in subject/stats in text files ?h.aparc.stats and aseg.stats. For aseg.stats, the volumes are in cubic mm. aparc.stats reports both surface area (mm^2) and volume (mm^3). If you havea bunch of subjects and you want to create a spreadsheet, you can use asegstats2ta

Re: [Freesurfer] questions about group analysis

2006-06-26 Thread Doug Greve
Hi Lars, sorry for the late response, I've been gone for two weeks. Qs 1and 2: Did you look at mri_glmfit --help? It describes what all these things are. You can also look at https://surfer.nmr.mgh.harvard.edu/fswiki/FsTutorial/GroupAnalysis. Q3: If you are loading a surface-based overlay,

Re: [Freesurfer] Finding ROI and average

2006-06-26 Thread Doug Greve
Use the method that Kevin described to get a label. Then use mri_vol2roi on the FSL stat volume to get a text summary. doug Joongnam Yang wrote: Thanks, Bruce & Kevin, What I meant is that 1. I have an overlay image (FSL functional image overlaid onto Freesurfer inflated image). So, th

Re: [Freesurfer] mri_normalize -conform question

2006-06-26 Thread Bruce Fischl
it should - consider it a bug. Have you tried mri_convert -cm (conform to min)? That will make it 8 bit and isotropic, but at the highest linear resolution it finds. I think that's what people here use when they're doing monkey recons. Bruce On Mon, 26 Jun 2006, Sebastian Moeller wrote: Hi

Re: [Freesurfer] mri_normalize -conform question

2006-06-26 Thread Sebastian Moeller
Hi Bruce, On 26. Jun 2006, at 16:15 Uhr, Bruce Fischl wrote: it should - consider it a bug. On a related note, is there an easy way to convince mri_info to just spit out the type (UCHAR FLOAT etc.) so I can easily script whether the conform step is necessary or not (instead of making the te

Re: [Freesurfer] Difficulties with segmentation

2006-06-26 Thread Doug Greve
reg-feat2anat uses brain.mgz. But you'll have to give us more detail in order to evaluate the problem, "somewhat inaccurate" is not very informative. Please give cmd lines, versions, and log files. reg-feat2anat does use flirt, and it will print out the flirt cmd line. You can compare it to t

Re: [Freesurfer] mri_normalize -conform question

2006-06-26 Thread Bruce Fischl
yeah, sorry, that's on our list of things to fix. I just added a --conform to mri_info so that it will return "yes" or "no" (also --type). Will be live in dev tomorrow. Nick: does the dev build go on the web every day? Bruce On Mon, 26 Jun 2006, Sebastian Moeller wrote: Hi Bruce, On 26.

Re: [Freesurfer] viewing group analysis results in tkmedit (3D) whileusing spherical space intersubject morphing

2006-06-26 Thread Doug Greve
Thanks Reza, that's just what I would have said! Reza Rajimehr wrote: This is Doug's response to my question. It might be also relevant to your question. Reza ** Not directly. tkmedit is a volume viewer, and the spherical maps are of cour

Re: [Freesurfer] mri_normalize -conform question

2006-06-26 Thread Sebastian Moeller
Hi Bruce, On 26. Jun 2006, at 16:49 Uhr, Bruce Fischl wrote: yeah, sorry, that's on our list of things to fix. This will make a great tool even greater, thnanks. Then again, for the smaller monkey brains the "fake the resolution to be 1mm isotropic" does the trick nicely, once you know it, t

Re: [Freesurfer] mri_normalize -conform question

2006-06-26 Thread Bruce Fischl
yeah, I know. That's Doug vs. me (you can always tell the difference based on whether the help is useful (Doug) or not (me)). sorry, Bruce On Mon, 26 Jun 2006, Sebastian Moeller wrote: Hi Bruce, On 26. Jun 2006, at 16:49 Uhr, Bruce Fischl wrote: yeah, sorry, that's on our list of things t

Re: [Freesurfer] converting register.mnc to register.dat

2006-06-26 Thread Doug Greve
Is the format the same as the xfm files? I thought .mnc meant that it was a volume. If you have an xfm file that maps from functional to the freesurfer anatomical, then you can do something like: tkregister2 --mov func.mnc --xfm your.xfm --s yoursubjectname --reg register.dat doug Jer

[Freesurfer] Talairach.bnd File Format?

2006-06-26 Thread Faden, Eric (NIH/NIMH) [F]
Hey all, I was wondering if anyone knows the format for the Talairach.bnd file? Specifically what I am looking for is what the matrix at the bottom actually represents. I am going to use them in a script to actually trim the brain so I need a way to compute the 6 planes that make up the box a

Re: [Freesurfer] mkbrainmask-sess

2006-06-26 Thread Doug Greve
HI Sebastian, I made a mod to this in development version, but it operates slightly differently in that you set the "nth" run with -run. Eg, -run 2 would mean to use the 2nd run. Otherwise, if you run it on more than one session, the run that you specify might not exist. Would this work for y

Re: [Freesurfer] mkbrainmask-sess

2006-06-26 Thread Sebastian Moeller
Hi Doug, On 26. Jun 2006, at 21:19 Uhr, Doug Greve wrote: HI Sebastian, I made a mod to this in development version, but it operates slightly differently in that you set the "nth" run with -run. Eg, -run 2 would mean to use the 2nd run. Otherwise, if you run it on more than one session, th