Hi Saad,
Does that make sense?
So we want to compare PDDvector_x for Patients to PDDvector_x HC
PDDvector_y for Patients to PDDvector_y HC
PDDvector_z for Patients to PDDvector_z HC
One hope we have is to determine if there are significant differences
in PDD in the different vector directions (x, y, and z) between
Healthy Subjects and Patients.
This would help greatly,
Catherine
On 4/13/13, Saad Jbabdi <[log in to unmask]> wrote:
> Hi - Comparing xyz across subjects does not make much sense to me... Not
> sure what it is you're trying to find out.
>
>
> Cheers
> Saad
>
>
> On 13 Apr 2013, at 23:22, Nucleos P wrote:
>
>> Hi Saad,
>>
>> Now that I have my individual subjects, MNI registered x, y, z vector
>> maps - How would you recommend comparing the following:
>> Controls vs Patients X-vector maps
>> Controls vs Patients Y-vector maps
>> Controls vs Patients Z-vector maps
>>
>> Would these pre-registered maps lose any vital integrity by being
>> uploaded into SPM for a simply VBM t-test comparison?
>>
>> Is there a way to set up something similar within FSL?
>>
>> Thank you very much,
>> Catherine
>>
>> On 4/4/13, Saad Jbabdi <[log in to unmask]> wrote:
>>> Hi - you can use fslroi for this.
>>>
>>> Saad
>>>
>>> On 3 Apr 2013, at 22:58, Nucleos P wrote:
>>>
>>>> Hello experts -
>>>>
>>>> Would you happen to know any programs or scripts that could help create
>>>> individual x, y, z vector maps from a primary eigenvector map?
>>>>
>>>> Currently, I use FSL and get both dyads1* output from the bedpostx and
>>>> V1
>>>> output from dtifit.
>>>>
>>>>
>>>> I would like to find a way to extract the 3 vector components from the
>>>> maps.
>>>>
>>>>
>>>> Thanks in advance for your time and help,
>>>> Catherine
>>>
>>> --
>>> Saad Jbabdi
>>> University of Oxford, FMRIB Centre
>>>
>>> JR Hospital, Headington, OX3 9DU, UK
>>> (+44)1865-222466 (fax 717)
>>> www.ndcn.ox.ac.uk/team/researchers/saad-jbabdi
>>>
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>>
>
> --
> Saad Jbabdi
> University of Oxford, FMRIB Centre
>
> JR Hospital, Headington, OX3 9DU, UK
> (+44)1865-222466 (fax 717)
> www.ndcn.ox.ac.uk/team/researchers/saad-jbabdi
>
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