Hi Wolf -
This helps...however, when I run fslmeants using the ROI sphere mask
it shows all zeros for individual subjects. I've done more constrained
analysis on the same image (e.g. less than 8mm radius) and gotten
On 4/15/13, wolf zinke <[log in to unmask]> wrote:
> fslroi uses voxel, but would not be the right tool for your purpose
> anyway, since it changes the image size, cropping it to the defined region.
> If you want to create a cubic mask you can use the -roi option of
> fslmaths. This option uses voxel coordinates, so you have to adjust the
> values according to your voxel dimension.
> If you want to create a more sphere-like ROI you can do follow this
> description in a recent post:
> I hope this helps,
> On 04/16/2013 12:52 AM, Nucleos P wrote:
>> Hello Experts -
>> When using fslroi it is unclear if the x size, y size, and z size
>> refer to mm or # of voxels around the coordinates?
>> For instance, if I wanted to create a mask at ROI 125, 97, 107 MNI 152
>> voxel coordinates and then extend to points outside (e.g. 8mm) how
>> would I set this up?
>> Thank you,