Elongation of segments in a 3D volume

Support
1

Hello Everyone,

I’ve a 3D volume like the following
Untitled

I would like to elongate all the vessel segments (say, by a factor of 5 times the current length).
Is there a way to elongate the vessel segments in Slicer?

2

You can scale the entire segmentation along an axis by applying a linear transform in Transformation module. Scaling factors are the first three values in the diagonal matrix.

3

Thanks a lot . I’d like to know if scaling can alter the thickness of the vessel segments too. I’d like to scale only the lengths.

4

Of course, scaling affects everything. Unless all the vessels are parallel, you cannot change their lengths without affecting their thickness.

5

Thanks a lot for the clarification

6

You can use the margin effect in the segment editor to grow or shrink your segmentation, this would affect the thickness of the vessels too.