[Freesurfer] Current age or Age of onset

2010-03-25 Thread 류철형
Dear All I'm trying to search for the cortical thickness change associated with the progression of a neurodegenerative disease. Each patient may have current age, age of onset, disease duration, and disease severity score. To find the cortical areas in which cortical thickness is correlated w

Re: [Freesurfer] Creating a distance scale bar for a pial surface-render viewed in tksurfer

2010-03-25 Thread Donna Dierker
Derin, You might try importing the surfaces into Caret for this. It seems like there are two needs: * flat cartesian grid (Menu bar: Layers: Borders: Create Cartesian Flat Analysis Grid Borders (see attached capture) * 3-D scale markers (Toolbar: D/C: Surface Miscellaneous: Surface Cartesian

Re: [Freesurfer] the thickness of manually selected vertex

2010-03-25 Thread Guang Zeng
Thanks! Yeah, I forgot this. Now, the results look right now. > Date: Thu, 25 Mar 2010 16:17:33 -0400 > From: fis...@nmr.mgh.harvard.edu > To: freesurfer...@hotmail.com > Subject: RE: [Freesurfer] the thickness of manually selected vertex > > are you sure you are using 1-based indices in matla

Re: [Freesurfer] the thickness of manually selected vertex

2010-03-25 Thread Bruce Fischl
nope, mris_anatomical_stats will take either (with -l or -a I think) On Thu, 25 Mar 2010, Guang Zeng wrote: > > Do I need convert the .label file to an annotation file before I run > mris_anatomical_stats? > > Could I get the same results if I do something like this: > > 1. create the label file

Re: [Freesurfer] the thickness of manually selected vertex

2010-03-25 Thread Guang Zeng
Do I need convert the .label file to an annotation file before I run mris_anatomical_stats? Could I get the same results if I do something like this: 1. create the label file, and load it using MATLAB, 2. find the corresponding ID of vertices I clicked. 3. load .thickness file using matlab 4. f

[Freesurfer] Paradigm files and event-related design

2010-03-25 Thread Zeidan, Mohamed A.
I was wondering if someone could help me answer a relatively simple question: I set up a paradigm file (called recall.par) as follows: 01 18 2 21 3 27 1 45 2 48 3 and so on... Where in the right column, condition 1 is blank screen, 2 is a room with a lamp, and

Re: [Freesurfer] Creating a distance scale bar for a pial surface-render viewed in tksurfer

2010-03-25 Thread Bruce Fischl
sorry Derin, I just poked through the tksurfer source and can't find it. I'll try to look more thoroughly later. I think Mary (Sereno) actually wrote this code to begin with and I modified it, so you could try pinging him On Thu, 25 Mar 2010, Derin Cobia wrote: > Don't have the source, but I

Re: [Freesurfer] Creating a distance scale bar for a pial surface-render viewed in tksurfer

2010-03-25 Thread Eric Moulton
That's peculiar. I suppose it's somehow related to my display. I find that when I zoom in at 110% increments, the bar shrinks until I reach 177% of the default view, where the bar disappears completely. After this point, the bar expands. That's pretty strange. Eric On Mar 25, 2010, at

Re: [Freesurfer] Creating a distance scale bar for a pial surface-render viewed in tksurfer

2010-03-25 Thread Derin Cobia
Don't have the source, but I could download it. What am I looking for? Do you think it would it be possible to do this in Matlab or something, and import in (as an overlay maybe)? New territory for me, I'm sorry too... :( -Derin On Mar 25, 2010, at 11:00 AM, Bruce Fischl wrote: > Hi Derin,

Re: [Freesurfer] Creating a distance scale bar for a pial surface-render viewed in tksurfer

2010-03-25 Thread Bruce Fischl
Hi Derin, you could try this in tksurfer, but it isn't terribly well documented or supported (or remembered by me). I hacked some stuff together in tksurfer to get those images, but haven't used it in more than 10 years. Do you have the source? You're welcome to poke through it, but I'm not sur

Re: [Freesurfer] Creating a distance scale bar for a pial surface-render viewed in tksurfer

2010-03-25 Thread Bruce Fischl
Hi Eric, it doesn't shrink for me, it expands. And I'm pretty sure it's 1cm, not 1mm (which is about the vertex spacing), so the guide must be wrong. We'll fix it Bruce On Thu, 25 Mar 2010, Eric Moulton wrote: > Thanks Bruce. I just checked the TkSurferGuide and noticed that it says the > sc

Re: [Freesurfer] definition of some aseg.stats measures...

2010-03-25 Thread Sita Kakunoori
Please refer to this wiki for definitions. https://surfer.nmr.mgh.harvard.edu/fswiki/BrainVolume On Thu, 25 Mar 2010, Gonzalo Rojas Costa wrote: Hi: What is the definition of the following measures that appears at the beginning of "aseg.stats" file: "Brain Mask Volume", "Brain Segmentatio

Re: [Freesurfer] Creating a distance scale bar for a pial surface-render viewed in tksurfer

2010-03-25 Thread Derin Cobia
Along these same lines, is it possible to overlay/display a Cartesian grid on the surface, a la the Neuroimage '99 II paper (Fig 7)? And is it possible to specify what the 'north pole' of this coordinate system is? For example, if I wanted it to be at the posterior end of the STS. I'm looking

[Freesurfer] definition of some aseg.stats measures...

2010-03-25 Thread Gonzalo Rojas Costa
Hi: What is the definition of the following measures that appears at the beginning of "aseg.stats" file: "Brain Mask Volume", "Brain Segmentation Volume Without Ventricles" (BrainSegVolNotVent), "Brain Segmentation Volume" (BrainSegVol), "Intracranial Volume" (IntraCranialVol, ICV) ?... The c

Re: [Freesurfer] Creating a distance scale bar for a pial surface-render viewed in tksurfer

2010-03-25 Thread Eric Moulton
Thanks Bruce. I just checked the TkSurferGuide and noticed that it says the scale bar is 1mm (which looks about right). However, while the scale bar at the default zoom looks fine, I find that it's length behaves strangely (it shrinks) when I zoom into the image. Does the distance value

Re: [Freesurfer] Creating a distance scale bar for a pial surface-render viewed in tksurfer

2010-03-25 Thread Bruce Fischl
Hi Eric, in tksurfer click view->scale bar to see the 1cm bar. cheers, Bruce On Thu, 25 Mar 2010, Eric Moulton wrote: > I was wondering if freesurfer has a way of generating a scale for > distance, similar to what one would see in the legend of a roadmap. > I'm thinking of using such a scale fo

[Freesurfer] Creating a distance scale bar for a pial surface-render viewed in tksurfer

2010-03-25 Thread Eric Moulton
I was wondering if freesurfer has a way of generating a scale for distance, similar to what one would see in the legend of a roadmap. I'm thinking of using such a scale for a 3-d pial surface-render of an averaged brain (as generated using make_average_surface). Since it's a 3-d image, I