# Tractography ROI selection via script

**URL:** https://discourse.slicer.org/t/tractography-roi-selection-via-script/36466
**Category:** Development
**Tags:** tractography
**Created:** [May 29, 2024, 1:52pm UTC](https://discourse.slicer.org/t/tractography-roi-selection-via-script/36466 "2024-05-29T13:52:41Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![fcruz](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/fcruz/32/76714_2.png) [@fcruz](https://discourse.slicer.org/u/fcruz)
#### Post date: [May 29, 2024, 1:52pm UTC](https://discourse.slicer.org/t/tractography-roi-selection-via-script/36466/1 "2024-05-29T13:52:41Z")

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Operating system: Ubutu 22.04  
Slicer version: 5.6.2  
I would like to automatically extract fiber bundles from a UKF tractography vtk file using the Tractography ROI selection module. I have a label map that contains FreeSurfer labels as well as some manually created labels. I want to use a script to automatically extract the fiber bundle for each pair of labels. Could anyone guide me on which Slicer function I should use? I am looking for a module similar to slicer.mrmlScene.AddNewNodeByClass(“vtkMRMLTractographyROISelection…”).

Thank you in advance for your help!

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### Author: ![Ann\_Jacob](https://avatars.discourse-cdn.com/v4/letter/a/a5b964/32.png) [@Ann\_Jacob](https://discourse.slicer.org/u/Ann_Jacob)
#### Post date: [April 30, 2026, 1:14pm UTC](https://discourse.slicer.org/t/tractography-roi-selection-via-script/36466/2 "2026-04-30T13:14:02Z")

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Hello, did you ever figure out how to do it?