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Hi Lena,

Z-MAX X, Y, Z give the coordinates of the location in each cluster with the maximum value. Z-COG X, Y, Z give the centre-of-gravity of each cluster.

These coordinates might be in voxel corodinates (vox) or in world coordinates (mm), depending on how cluster was called.

Cheers,

Paul

On 30 August 2017 at 04:13, Lim, Lena <[log in to unmask]> wrote:

Dear FSL experts,


I got the following from the TBSS outputs. Could you kindly explain what the xyz values are please?


Cluster Index Voxels Z-MAX Z-MAX X (mm) Z-MAX Y (mm) Z-MAX Z (mm) Z-COG X (mm) Z-COG Y (mm) Z-COG Z (mm)
1 678 0.978 -31 -69 -1 -33.5 -60.2 2.62

Cluster Index Voxels Z-MAX Z-MAX X (vox) Z-MAX Y (vox) Z-MAX Z (vox) Z-COG X (vox) Z-COG Y (vox) Z-COG Z (vox)
1 678 0.978 121 57 71 124 65.8 74.6

Many thanks,


Lena