# Knee MRI Segmentation: Efficiency

**URL:** <https://discourse.slicer.org/t/knee-mri-segmentation-efficiency/23713>\
**Category:** Support\
**Tags:** segmentation\
**Created:** [June 5, 2022, 2:41pm UTC](https://discourse.slicer.org/t/knee-mri-segmentation-efficiency/23713 "2022-06-05T14:41:51Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Abdulla\_Al\_Shibli](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/abdulla_al_shibli/32/15494_2.png) [@Abdulla\_Al\_Shibli](https://discourse.slicer.org/u/Abdulla_Al_Shibli)\
**Post date:** [June 5, 2022, 2:41pm UTC](https://discourse.slicer.org/t/knee-mri-segmentation-efficiency/23713/1 "2022-06-05T14:41:51Z")

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Hi,

I am currently segmenting the bones (Femur, Tibia, Patella, etc.), ligaments, and tendons of a knee MRI. Pasted is a screenshot of what it looks like. I’m currently just painting and using the fill between slices function. However, as a new user, I am sure there are more efficient/accurate methods of getting this done. Anyone have any ideas?

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/b/f/bff476b4e80961a5b7a36447f9fb70d9873f32ac.jpeg)

On a sidenote, the fill between slices function sometimes includes some parts of an intensity different than the body part I am trying to segment. How can I cut these parts off multiple slices at once?

Any response is appreciated, thanks.

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**Author:** ![pieper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pieper/32/8_2.png) [@pieper](https://discourse.slicer.org/u/pieper)\
**Post date:** [June 5, 2022, 2:44pm UTC](https://discourse.slicer.org/t/knee-mri-segmentation-efficiency/23713/2 "2022-06-05T14:44:06Z")

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GrowFromSeeds should work well on that task.

For the fill, you could explore using a threshold, but relying on the signal intensity is probably not going to work well.