As far as I'm aware, SPM is correctly dealing with the sform
orientations in the NIfTI headers. Maybe take a closer look at the
orientation information in the ROI mask, comparing it with that of the
MRI scans. Also, I can see that the ROIs are shown on a different
side of the visualisation in the two attachments, but I can not tell
if the underlying anatomical scan is shown the same way.
On 8 August 2011 07:53, mmkleung <[log in to unmask]> wrote:
> Dear all,
> I just found that the laterality of the ROI masks created with Marina is not correct as viewd by SPM8, but it is correct when viewed by MRIcroN. Strangely, this problem only happens on Marina's masks but not on other images like T1 with known laterality (a fish cod pill was sticked to subject's left forehead).
> Attached please find 2 pictures which showed the above mentioned problem.
> I also tried other ROI masks created with another software like wfu_pickatlas. Both SPM8 and MRIcroN read their left-right okay.
> If I want to use the Marina's mask, how may I make the laterality of the masks to be correctly viewed in SPM8 (note: I use REX toolbox on SPM8 to extract mean value within a ROI)? Thanks for any comments/help!
> Best wishes,