Search found 8 matches

by Xingfeng Li
Wed Jan 28, 2009 1:12 pm
Forum: Anatomist
Topic: Convert .mesh file to text file?
Replies: 4
Views: 6769

Re: Convert .mesh file to text file?

Thanks a lot. I have done this. My eventually aim is to get the thickness of hippocampus. I have got the mesh file (text file now), thickness file(from RIC, text file ), and mask file (MNI 3D tal space). But i have problems to find the corresponding coordinates of these three files. Do you know how ...
by Xingfeng Li
Tue Jan 27, 2009 11:24 am
Forum: Anatomist
Topic: Convert .mesh file to text file?
Replies: 4
Views: 6769

Convert .mesh file to text file?

Hi All, I want to get the cortical thickness of hippocampus. I have done the cortical thickness for the whole brain(.mesh file, like this R_utrans_wm.mesh), and i also have done the hippocampus segmentation(labeled as 36 in a 3D MRI MINC file in Tal space). I have asked Peter Kochunov to help, he to...
by Xingfeng Li
Wed Jan 07, 2009 11:31 am
Forum: BrainVISA
Topic: surface reconstruction
Replies: 15
Views: 13785

Re: surface reconstruction

Hi Jean-Francois Mangin, Thanks a lot. I have to say i am a beginner. After I have tried several times, i found it works! The results are much better! In addition, it is also faster if i cut the skull before do anything else. I am attaching 2 figures for comparison. The first one is the original bra...
by Xingfeng Li
Tue Jan 06, 2009 11:03 am
Forum: BrainVISA
Topic: surface reconstruction
Replies: 15
Views: 13785

Re: surface reconstruction

Hi Jean-François Mangin, Yes, you are right. There are other problems when i used skull removed brain to do the reconstruction. I should add the skull removed brain to some step, at least not at the beginning of the processing. But i do not know where i should add. Is it possible to visit your lab t...
by Xingfeng Li
Tue Dec 23, 2008 11:20 am
Forum: BrainVISA
Topic: surface reconstruction
Replies: 15
Views: 13785

Re: surface reconstruction

Thanks a lot. I have an idea to handle this problem,i.e. using FSL (fslvbm_1_bet to extract brain information) to cut the skull, then run BrainVisa after that. This is based on the fact that BrainVisa reconstructs large parts of skull for the whole brain, if the skull can be removed beforehand, the ...
by Xingfeng Li
Mon Dec 22, 2008 10:37 am
Forum: BrainVISA
Topic: surface reconstruction
Replies: 15
Views: 13785

Re: surface reconstruction

Thanks a lot for replying. My MRI data acquistion details are: sequence = MP-RAGE TR(msec) = 9.7 TE(msec) = 4.0 flip angle(degree) = 10 T1(msec) = 20 TD(msec) = 200 orientation = sagittal All data were resampled to the Tal space by using mritotal before reconstruction. All my data are MINC format.
by Xingfeng Li
Thu Dec 18, 2008 4:15 pm
Forum: BrainVISA
Topic: surface reconstruction
Replies: 15
Views: 13785

Re: surface reconstruction

Hi, I also have some addation informations. I repeated the calculation for three subjects, results of two subjects are fine, but the the third one is not good. During the calculation, it gives: Process T1 Pipeline 2007 134 started on 2008/12/18 15:43 ------------------------------ ! VIP Warning: Som...
by Xingfeng Li
Thu Dec 18, 2008 3:28 pm
Forum: BrainVISA
Topic: surface reconstruction
Replies: 15
Views: 13785

Re: surface reconstruction

Hello, I am doing this work now. What i have done is as follows: First, I used 'Import T1 MRI' to load the data Second, i run 'T1 Pipeline 2007' I selected Normalised: MNI from mritotal, because i have transferred all the data to MNI space using mritotal. l leave other parameters as it is (default) ...