Then use bbregister on the native-space low-b image to create a
register.dat. Then use mri_label2vol to map the aparc+aseg.mgz to the
native DTI space. Then use mri_binarize to create binary masks for each
of your ROIs.
doug
On 8/12/10 10:52 AM, Lena Palaniyappan wrote:
Doug
I need an analyze file with the two regions I am interested in each
individuals DTI space
The rois are anterior insula and posterior insula from Destrieux atlas
2009
Cheers
Lena
On 12/08/2010 15:07, "Douglas Greve" <[email protected]> wrote:
I'm not sure what it is that you need. Do you need seed
coordinates in the native DTI space of each subject or in MNI
space? If MNI, which one, mni152 or mni305? Do you need the
coordinates in xyz or row,col,slice? Or do you need your seed
region to be a mask (in what space)?
doug
On 8/12/10 8:55 AM, Lena Palaniyappan wrote:
Coordinates for DTI tractography Hi all
I want to use a freesurfer parcellation as a seed point in
DTI analysis using a non-FSL DTI tractography tool.
I have the raw DTI images for around 40 subjects (20 scz 20
controls). From the structural MPRAGEs that correspond to
these subjects, I have an average image where I have my
defined ROI (which is a freesurfer atlas based parcellation).
The ROI has numerous vertices whose MNI coordinates are
available to me.
Please correct me if I have understood this properly
1. I have to process the raw DTI images to obtain FA/trace
images first for each subject
2. each FA/trace image should be registered to the average
structural MPRAGE of the group
3.
How do I then go on to obtain the coordinates for my label on
the DTI space?
Many thanks
Lena
_______________________________________________________
*Lena Palaniyappan
*Clinical Lecturer & Honorary StR | Division of Psychiatry (
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South Block 'A' floor| Queens Medical Centre | Nottingham |
NG7 2UH
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