David,
If you want to identify all the peaks, then I'd recommend my VOI
extraction tools, in particular peak_nii.m. The programs can be found
at: http://www.martinos.org/~mclaren/ftp/Utilities_DGM
Let me know if you have any questions after reading through the help.
To get the help, type:
help peak_nii
Best Regards, Donald McLaren
=================
D.G. McLaren, Ph.D.
Postdoctoral Research Fellow, GRECC, Bedford VA
Research Fellow, Department of Neurology, Massachusetts General Hospital and
Harvard Medical School
Office: (773) 406-2464
=====================
This e-mail contains CONFIDENTIAL INFORMATION which may contain PROTECTED
HEALTHCARE INFORMATION and may also be LEGALLY PRIVILEGED and which is
intended only for the use of the individual or entity named above. If the
reader of the e-mail is not the intended recipient or the employee or agent
responsible for delivering it to the intended recipient, you are hereby
notified that you are in possession of confidential and privileged
information. Any unauthorized use, disclosure, copying or the taking of any
action in reliance on the contents of this information is strictly
prohibited and may be unlawful. If you have received this e-mail
unintentionally, please immediately notify the sender via telephone at (773)
406-2464 or email.
On Thu, Oct 13, 2011 at 1:39 AM, David Yang <[log in to unmask]> wrote:
> Dear SPMers:
>
> Since it was a basic question, I could not find any answer from manual or discussions in the forum.
>
> As the SPM MNI space (voxel size 2mmx2mmx2mm and dimension: 91x109x91) and DARTEL-processed images (voxel size: 1.5mmx1.5mmx1.5mm and dimension: 121x145x121) had different voxel size and dimensions, I wondered if it was needed to perform some transfrom from MNI coordiates to DARTEL-procesed images?
>
> I suspected the step of "Normalise to MNI Space" in DARTEL tools had dealt with such problem but why the result image still had image voxel size 1.5mmx1.5mmx1.5mm and dimension: 121x145x121?
>
> Furthermore, for my current work, I have to review literature and chose the hypothesis driven anatomical VOI based the reported MNI coordinates from related papers. I used WFU_Pickatlas and entered the coordinates in the software to get the anatomy labeling based on atlas (eg. AAL). I wondered if the difference voxel size or dimension of SPM MNI space and DARTEL-processed images make such process invalid?
>
> Thanks for help!
>
|