# Using segmentations from ChangeTracker

**URL:** <https://discourse.slicer.org/t/using-segmentations-from-changetracker/1814>\
**Category:** Support\
**Created:** [January 11, 2018, 7:36pm UTC](https://discourse.slicer.org/t/using-segmentations-from-changetracker/1814 "2018-01-11T19:36:45Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![JohnK](https://avatars.discourse-cdn.com/v4/letter/j/59ef9b/32.png) [@JohnK](https://discourse.slicer.org/u/JohnK)\
**Post date:** [January 11, 2018, 7:36pm UTC](https://discourse.slicer.org/t/using-segmentations-from-changetracker/1814/1 "2018-01-11T19:36:45Z")

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I was successful in running the ChangeTracker module on longitudinal astrocytomas that had a homogeneous contrast signal. It worked great but I did not save the final results (assuming I could recall them when reloading my Scene).

However I can’t recall the results from the Scene. I see the baseline and follow-up ROI, and the BaselineROI\_segmentation, but the segmentation editor does not seem to recognize the BaselineROI\_segmentation as an input segmentation. Also the color coding (progression / regression) is not visible anymore.  
-Am I correct that the ChangeTracker module does not store the results in the scene?  
-Does the segment editor not recognize segmentations performed by ChangeTracker?

Thanks! John

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**Author:** ![ihnorton](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/ihnorton/32/9_2.png) [@ihnorton](https://discourse.slicer.org/u/ihnorton)\
**Post date:** [January 11, 2018, 9:37pm UTC](https://discourse.slicer.org/t/using-segmentations-from-changetracker/1814/2 "2018-01-11T21:37:16Z")

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For this one:

> [@JohnK](#):
>
> -Does the segment editor not recognize segmentations performed by ChangeTracker?

I suspect the ChangeTracker writes a “labelmap”, which must be imported to Segmentations. See instructions and links in this comment and the follow-up:

> [@How to convert volume to segmentation?](https://discourse.slicer.org/t/how-to-convert-volume-to-segmentation/1081/3):
>
> Thank you for your reply, Lassoan. But is there a more detail instruction on how to import the lablemap volume? I clicked the Import button, but nothing happened. [image]. In addition, it seems the Copy/move segments function will do the same job. [image] (Link: [Documentation/Nightly/Modules/Segmentations - Slicer Wiki](https://www.slicer.org/wiki/Documentation/Nightly/Modules/Segmentations)). However, it doesn’t say how to select the node in the right square. Operation system: Win7. Version: 4.7.0. Thank you very much.