# How to to create out  of a MRI a 3D model of spinal nerves ?

**URL:** <https://discourse.slicer.org/t/how-to-to-create-out-of-a-mri-a-3d-model-of-spinal-nerves/26321>\
**Category:** Support\
**Tags:** segmentation, 3d-model\
**Created:** [November 19, 2022, 5:21pm UTC](https://discourse.slicer.org/t/how-to-to-create-out-of-a-mri-a-3d-model-of-spinal-nerves/26321 "2022-11-19T17:21:31Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Dimitrios\_Rallios](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/dimitrios_rallios/32/17405_2.png) [@Dimitrios\_Rallios](https://discourse.slicer.org/u/Dimitrios_Rallios)\
**Post date:** [November 19, 2022, 5:21pm UTC](https://discourse.slicer.org/t/how-to-to-create-out-of-a-mri-a-3d-model-of-spinal-nerves/26321/1 "2022-11-19T17:21:31Z")

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Hi there!

I have an MRI-spine scan of a patient and out of that, I am trying to create a 3d model of the spinal nerves.I tried the segment editor-\> new segment-\> nerve-\>Threshold but it is not that precise. I am 2 days old in this ,I hope someone can help me.

Have a nice one!  
Dimitrios Rallios([dimitrios.rallios@charite.de](mailto:dimitrios.rallios@charite.de))  
Charité Universitätsmedizin Berlin

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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:** [November 20, 2022, 5:21pm UTC](https://discourse.slicer.org/t/how-to-to-create-out-of-a-mri-a-3d-model-of-spinal-nerves/26321/2 "2022-11-20T17:21:10Z")

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Without seeing the actual images, my guess would be that this is a very challenging segmentation task. If you can clearly see the nerves when you scroll through the data then there’s a good chance you can use manual tools, such as the paint brush, and perhaps the Grow from seeds or Fill between slices tools to make the work more efficient but I guess it’s not easy. Perhaps if you can post a screenshot you might get additional suggestions.