# cross-sectional image to reconstruct
**URL:** https://discourse.slicer.org/t/cross-sectional-image-to-reconstruct/35268
**Category:** Support
**Created:** [April 3, 2024, 10:27pm UTC](https://discourse.slicer.org/t/cross-sectional-image-to-reconstruct/35268 "2024-04-03T22:27:09Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@ypd04474](https://discourse.slicer.org/u/ypd04474)
#### Post date: [April 3, 2024, 10:27pm UTC](https://discourse.slicer.org/t/cross-sectional-image-to-reconstruct/35268/1 "2024-04-03T22:27:09Z")
Hello.
I have a cross-sectional image of some nanostructure.
Cross-sectional images were taken continuously at equal intervals in a direction perpendicular to the cross-section.
I would like to do 3D reconstruction using these jpg files.
I was wondering where to start and if there would be a suitable module.
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### Author:  [@muratmaga](https://discourse.slicer.org/u/muratmaga)
#### Post date: [April 3, 2024, 10:55pm UTC](https://discourse.slicer.org/t/cross-sectional-image-to-reconstruct/35268/2 "2024-04-03T22:55:47Z")
You can use ImageStacks module of SlicerMorph extension to import a sequence of bitmap files. You do need to enter the spacing information of the voxels (x, y, z axes)
See the tutorial here: [Tutorials/ImageStacks at main · SlicerMorph/Tutorials (github.com)](https://github.com/SlicerMorph/Tutorials/tree/main/ImageStacks)
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### Author:  [@ypd04474](https://discourse.slicer.org/u/ypd04474)
#### Post date: [April 4, 2024, 2:04pm UTC](https://discourse.slicer.org/t/cross-sectional-image-to-reconstruct/35268/3 "2024-04-04T14:04:46Z")
Thank you for your quick and informative answer.
In addition, I would like to ask how I can export the data made in 3d to a cad file (ex.stl).
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### Author:  [@muratmaga](https://discourse.slicer.org/u/muratmaga)
#### Post date: [April 4, 2024, 2:15pm UTC](https://discourse.slicer.org/t/cross-sectional-image-to-reconstruct/35268/4 "2024-04-04T14:15:32Z")
You need to segment your structure. Please read the segmentation section of the Slicer user manual at [https://slicer.readthedocs.io](https://slicer.readthedocs.io)
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### Author:  [@ypd04474](https://discourse.slicer.org/u/ypd04474)
#### Post date: [April 8, 2024, 2:40am UTC](https://discourse.slicer.org/t/cross-sectional-image-to-reconstruct/35268/5 "2024-04-08T02:40:37Z")
Thanks a lot
First, i tried to follow the tutorial but i cannot find the video tutorial at all…
([New video tutorial for Segment editor - lumbar spine segmentation for 3D printing](https://discourse.slicer.org/t/new-video-tutorial-for-segment-editor-lumbar-spine-segmentation-for-3d-printing/700))
So I was going to refer to a few youtube. But the bar setting of threshold range is not active. I’m curious about the reason why it is not active…
have a nice day!
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### Author:  [@pieper](https://discourse.slicer.org/u/pieper)
#### Post date: [April 8, 2024, 9:16pm UTC](https://discourse.slicer.org/t/cross-sectional-image-to-reconstruct/35268/6 "2024-04-08T21:16:31Z")
Practice first with the data from the tutorials. Then if there’s a step that you can get to work, share the exact steps you did together with the data needed to reproduce any issues.
[https://www.slicer.org/wiki/Documentation/Nightly/Training#Segmentation](https://www.slicer.org/wiki/Documentation/Nightly/Training#Segmentation)