Peter,
I am on the same platform (MacBook Pro) and Fslview (2.4.0b). I had the same
observation about a week ago with an ROI drawing on top of an FA map in
tractography. I had a suspicion that it could be caused by an image
orientation (qform, sform) in the NIFTI images, because when I removed it,
all went fine. Unfortunately, I did not have time resources to search more
carefully.
Martin
On Thursday 01 March 2007 23:45, Peter Sokol-Hessner wrote:
> Dear All,
>
> When using the pen-drawing function in fslview (2.4.0b), the ROI gets
> flipped L-R after it's made. I am on an Intel MacBook Pro with
> 10.4.8. The specifics follow:
>
> 1. Open a mean functional image in fslview ("mean_func.nii.gz")
> 2. Select "Create Mask" from the File menu
> 3. Select the Pen ROI drawing tool
> 4. On the axial image, draw an "L" in the left hemisphere. Then go
> DOWN one slice, and draw an "R" in the right hemisphere.
> 5. Select "Save As..." and call it "LeftTopRightBottomMask"
> 6. Close the subwindow that has the mean_func.nii.gz and the mask
> overlaid.
> 7. Open "LeftRightMask.nii.gz" using the file menu.
> 8. Observe the L & R being flipped in the left/right dimension, but
> in the correct slices (as in the L is still above the R).
>
>
>
> Peter Sokol-Hessner
>
>
>
> Peter Sokol-Hessner
> Graduate Student, Phelps Lab
> Department of Psychology
> New York University
> [log in to unmask]
> 212-998-3881 (office)
--
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Senior Research Associate in Neuroradiology
MRI Unit of the Department of Radiology
Erasme Hospital
Lennik Street 808
B-1070 Brussels
BELGIUM
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