Re: [Freesurfer] Freesurfer vs. VBM

2008-05-15 Thread Pedro Paulo de Magalhães Oliveira Junior
Do you have pointers for this paper? 2008/5/15 Bruce Fischl <[EMAIL PROTECTED]>: > p.s. Natalie Voets at Oxford also has a study on this and might have some > comments... > > > On Thu, 15 May 2008 [EMAIL PROTECTED] wrote: > > Hi Martin, >> >> Not to belabor this topic but one of the major advanta

[Freesurfer] Ph D scholarships at School of Psychiatry , University of New South Wales, Sydney, Australia

2008-05-15 Thread wanlin
- *Ph.D Scholarships in Neuroimaging * *School of Psychiatry, University of New South Wales, Sydney, Australia* The School of Psychiatry at UNSW invites applications for a Ph.D. Scholarships in the area of brain Magnetic Resonance Imaging (MRI), to commence in the 2^nd half of 2008. Each sch

Re: [Freesurfer] Hippocampal volumes

2008-05-15 Thread Bruce Fischl
Hi Petr, can you try the latest release? I think there was a bug in 4.0 that caused this kind of thing which hopefully is now fixed. You can certainly edit the asegs if you want (in tkmedit), but hopefully if you rerun it will resolve these issues. cheers, Bruce On Thu, 15 May 2008 [EMAIL PR

Re: [Freesurfer] color schematic

2008-05-15 Thread Doug Greve
You will need to segment your differences into bins, then you can use mris_seg2annot. Run it with --help for more info. doug Elif SIKOGLU wrote: Hello, We have created a difference map (surface encoded volume). We would like to display different values on the map as different colors (si

Re: [Freesurfer] Freesurfer vs. VBM

2008-05-15 Thread Bruce Fischl
p.s. Natalie Voets at Oxford also has a study on this and might have some comments... On Thu, 15 May 2008 [EMAIL PROTECTED] wrote: Hi Martin, Not to belabor this topic but one of the major advantages in using Freesurfer is that for an individual subject, you can ascertain what the individual

[Freesurfer] color schematic

2008-05-15 Thread Elif SIKOGLU
Hello, We have created a difference map (surface encoded volume). We would like to display different values on the map as different colors (similar to an annotation file). Is there a way to convert a surface encoded volume to an annotation format or even label files? Thanks, Elif _

Re: [Freesurfer] Freesurfer vs. VBM

2008-05-15 Thread Martin Kavec
Thanks to all of you for ideas. You may also find interesting to look at: http://www.wikibooks.org page on VBM, which has large section of Criticism. The most striking for me is the inaccuracy of the spatial normalization, which may account for as much as 10.8 mm. On Thursday 15 May 2008 18:58

Re: [Freesurfer] Freesurfer vs. VBM

2008-05-15 Thread rahul
Hi Martin, Not to belabor this topic but one of the major advantages in using Freesurfer is that for an individual subject, you can ascertain what the individual volume/thickness is of specific neuroanatomic areas. Clinically, this information is of significant importance as you can then detail wh

Re: [Freesurfer] Freesurfer vs. VBM in SPM

2008-05-15 Thread Bruce Fischl
volume maps for sure. We have found that the area does change with different conditions (e.g. aging and AD), and not necessarily in the same direction or at the same rate as thickness. On Thu, 15 May 2008, Juergen Haenggi wrote: Hi FS and VBM experts I also tried to compare FS and VBM in SPM

[Freesurfer] Freesurfer vs. VBM in SPM

2008-05-15 Thread Juergen Haenggi
Hi FS and VBM experts I also tried to compare FS and VBM in SPM a time ago. We decided not to compare cortical thickness (FS) with absolute volume (VBM). We multiplied the FS thickness by the FS area vertex-wise to construct FS volume maps (the not yet implemented step) and compared them with abso

Re: Resp.: [Freesurfer] Freesurfer vs. VBM

2008-05-15 Thread Woo-Suk, Tae
.Bold { font-weight: bold; } .Title { font-weight: bold; font-size: 18px; color: #cc3300; } .Code { border: #8b4513 1px solid; padding-right: 5px; padding-left: 5px;color: #66; font-family: 'Courier New' , Monospace;background-color: #ff9933; } In my case with the patients with chronic major

Resp.: [Freesurfer] Freesurfer vs. VBM

2008-05-15 Thread Pedro Paulo de Magalhães Oliveira Junior
Martin, I have an still unpublished work comparing VBM and FS in Alzheimer. I can say to you that FS provides result much more accurate in this area. Best Regards, Pedro Paulo Jr 2008/5/14, Bruce Fischl <[EMAIL PROTECTED]>: > Hi Martin, > > 1. FS uses geometry to do inter-subject registration,