Hi Doug,
There is a bit of movement across the 3 acquisitions. How may I align
everything together before running mri_concat?
1. Run bbregister or mri_coreg to register 1 acquisition to T1
2. Use the reg file to move the remaining 2 acquisitions ?
Is there a quicker way?
Thank you.
--
Shane
Thank you very much!!
--
Shane S
On 9 March 2017 at 17:01:28, Douglas N Greve (gr...@nmr.mgh.harvard.edu) wrote:
If the 3 volumes are in register (ie, no motion between them), then I
would just run the mri_concat command to create a single volume which is
the average of the 3, then proceed
Hi Doug,
I want to derive a single averaged PET volume from the three reconstructed 5
min acquisitions, expressed in detected counts. Then we will divide the counts
based on the cerebellum. Following that, I want to use PetSurfer for partial
volume correction and GLM comparisons. May I upload
If the 3 volumes are in register (ie, no motion between them), then I
would just run the mri_concat command to create a single volume which is
the average of the 3, then proceed as described.
On 03/09/2017 11:58 AM, Shane S wrote:
> Hi Doug,
>
> I want to derive a single averaged PET volume
How are you planning on analyzing the different time points?
On 03/08/2017 05:33 PM, Shane S wrote:
> Dear Doug,
>
> My PET data is 3 x 5 minute acquisitions. Each subject has
> subject123_a.nii.gz, subject123_b.nii.gz, subject123_c.nii.gz and I am
> supposed to align and average them.
>
>
Dear Doug,
My PET data is 3 x 5 minute acquisitions. Each subject has
subject123_a.nii.gz, subject123_b.nii.gz, subject123_c.nii.gz and I am supposed
to align and average them.
Please advise.
Thanks!
--
Shane Schofield
On 8 March 2017 at 22:31:06, Douglas Greve (gr...@nmr.mgh.harvard.edu)
No, the template is a within subject template used for registration. If
your pet data only has one frame (eg, FDG SUV), then you don't need to
run mri_convert or mri_concat, just use your pet image as the template
On 3/8/17 11:11 AM, Shane S wrote:
Hello Freesurfer,
I have 3 PET images per
Hello Freesurfer,
I have 3 PET images per individual. I am learning PetSurfer based on the Greve
et al., 2014 paper.
On the PetSurfer link, there are 2 methods.
mri_convert pet.nii.gz —frame frameno template.nii.gz
or
mri_concat pet.nii.gz --mean —0 template.nii.gz
What are the differences?
