Sorry everyone! This should read:
"it seems as if the Talairach origin is not carried over by **Fast**
It is Fast that I am having problems with, NOT Flirt.
On 22/7/04 3:17 pm, "Dr Krish Singh" <[log in to unmask]> wrote:
> Just to add to my last post, it seems as if the Talairach origin is not
> carried over by Flirt either.
>> Hi there,
>> I've got myself into some laterality difficulties with negative voxel
>> dimensions. Let me explain what I did:
>> 1) Using flirt I registered a radiological axial volume to the FSL T1
>> avwhd now reports that this has voxel dimensions of -2,2,2 mm which is
>> I think.
>> 2) I took the registered volume generated in the above step and passed it
>> through Flirt to generate segmentation maps. avwhd now reports that the voxel
>> dimensions for the segmented images are 2,2,2 which I don't think is correct
>> they should be the same as the input image.
>> Is the above behaviour expected? It causes me some problems because my
>> software, mri3dX, assumes that if you overlay one volume on another and their
>> horizontal voxel dimensions have different signs, then it needs to flip the
>> laterality of the overlay. In the case of the above, this is clearly not the
>> All the best,
> Dr K.D. Singh
> Senior Lecturer and Convenor of the Neuroimaging Research Group,
> Director, MRI Research Centre,
> Neurosciences Research Institute
> Aston University, Birmingham B4 7ET, U.K.
> Tel/Fax: +44 (0)121 [204 3865/3864]/[333 4220]
> [log in to unmask], http://www.aston.ac.uk/lhs/staff/singhkd/
Dr K.D. Singh
Senior Lecturer and Convenor of the Neuroimaging Research Group,
Director, MRI Research Centre,
Neurosciences Research Institute
Aston University, Birmingham B4 7ET, U.K.
Tel/Fax: +44 (0)121 [204 3865/3864]/[333 4220]
[log in to unmask], http://www.aston.ac.uk/lhs/staff/singhkd/