[Freesurfer] qdec

Hi everybody, > > I tried to run the qdec-tool, but experienced some problems . I got different > thickness in one area. In detail: 1. When I open the qdec.table.dat ,the thickness is different from the thickness got from the display in Find Clusters and Goto Max,I really do not know why? 2. C

[Freesurfer] qdec problems

Hi all, I want to analyse the thickness difference between patients and normals,but I can not understand the results that I got from qdec-analysis .I hope someone can help me. Firstly,as the papers says, the Cortical (surface-based) Analysis measures the Distance between white and pial surf

[Freesurfer] qdec problems

Hi,all: I have several problems about the qdec in freesurfer 5.0. Firstly,can somebody explain the function of the buttons in the qdec's third step (display),such as Set using FDR in the False Discovery Rate ,Monte Carlo Null-Z simulation.If I just let these buttons as the default ,is it ri

[Freesurfer] Mac Pro with 12cores

Hi,all: As we have too many controls and patients to run the "recon-all",and it is really time-suming,so,how can I reduce the time of recon-all in a group of patients? After read the statistic info on the website https://surfer.nmr.mgh.harvard.edu/fswiki/ReconAllRunTimes It seems the mac

[Freesurfer] Is there a way to obtain the thickness of every vertex of the whole brain?

Hi,all: Just as the title says,I wonder if there is a method to obtain the thickness of each vertex in the whole brain,and so,if we can,how do we kown which of the area is the vertex belong to? I am using the freesurfer 5.0. thanks in advance! wang___

[Freesurfer] the threshold value in qdec window

Hi all, I used the freesurfer 5.0,there is a question in my reseach,may be not a question! When i view the results of analysis in the qdec window,why did i cannot change the value of the Threshold,such as min(which had been seted with the value of 2) ,in the same way,the max is 5?If i want t

[Freesurfer] subcortical volume and qdec

Dear freesurfer experts: I had processed my data with recon-all, and also ,I had compared the cortical thickness difference between the con and pat with qdec .however,when i I try to compare the sub-cortical volume difference between con and pat ,the results were the same as the thickness,

Re: [Freesurfer] subcortical volume and qdec

ange >in thickness value given a particular subcortical volume. the one >exception i have seen for this is hippocampal volume, which does have an >effect on cortical thickness between controls and AD patients. > >n. > > >On Wed, 2011-05-04 at 11:18 +0800, 汪贵宏 wrote: >> Dear f

[Freesurfer] Creation of normalized cortical regions of interest

Hi,freesurfers: Recently,I read a paper which used freesurfer to processed their data,this is the paper's link:http://www.plosbiology.org/article/info%3Adoi%2F10.1371%2Fjournal.pbio.0060159 In this paper,the antor said : "One of the critical steps of the whole procedure was to partition the

[Freesurfer] how can do ''mri_convert''quickly when there are too many subjects

Hi Bruce, In our research,if there are 100 subjects,how can I process these data easily.For example，when I want to compare their thickness's difference，at first，I should do " mri_convert bert.nii bert.nii.gz",but when there are too many subjects,is there a way to do all of these 100