Obtain outside contour

Support
1

Operating system: win10
Slicer version: slicer 4.10.0 /4.10.1
Expected behavior:
Actual behavior:

Hi,there . I would like know if i can segment the skin of a head CT images with the help of “Segmenteditor module”, i want the outside contour of the head, and there are many tools i
can use, but i don’t know which one can perfectly do this work ?( i know i can simply use
pure manual segmentation method,s like draw、paint… but it is time-consuming)
image

Any help would be appreciated.

2

I think a good starting point would be to threshold whole head:

image
image2544×1374 407 KB

And then use Hollow to get the outer layer:
image

This requires minor manual processing but should get you a satisfying result within a few minutes:

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image1907×644 213 KB

2 Likes
3

This segmentation recipe may also help: https://lassoan.github.io/SlicerSegmentationRecipes/SkinSurface/

Also, a new “surface solidify” extension will be added to Slicer very soon, which may further automate the process (see status here).

1 Like
4

It did work. Thank you .