# Determine performance metrics

**URL:** <https://discourse.slicer.org/t/determine-performance-metrics/7370>\
**Category:** Development\
**Tags:** quantitative\
**Created:** [July 1, 2019, 2:05pm UTC](https://discourse.slicer.org/t/determine-performance-metrics/7370 "2019-07-01T14:05:37Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![safa](https://avatars.discourse-cdn.com/v4/letter/s/9fc348/32.png) [@safa](https://discourse.slicer.org/u/safa)\
**Post date:** [July 1, 2019, 2:05pm UTC](https://discourse.slicer.org/t/determine-performance-metrics/7370/1 "2019-07-01T14:05:37Z")

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can i determine performance metrics (Dice, Accuracy, sensitivity,…) with slicer ?

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [July 1, 2019, 3:19pm UTC](https://discourse.slicer.org/t/determine-performance-metrics/7370/2 "2019-07-01T15:19:58Z")

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You can use Segment Comparison module in SlicerRT extension for computing Hausdorff and Dice metrics.

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**Author:** ![safa](https://avatars.discourse-cdn.com/v4/letter/s/9fc348/32.png) [@safa](https://discourse.slicer.org/u/safa)\
**Post date:** [July 1, 2019, 4:20pm UTC](https://discourse.slicer.org/t/determine-performance-metrics/7370/3 "2019-07-01T16:20:28Z")

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thank you  
but i can’t select the image in referent segment or compare segment

 ![icone](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/0/5/05ac428c12345e6fc0d78fa364deb68dc284e0f9.png)

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [July 1, 2019, 5:55pm UTC](https://discourse.slicer.org/t/determine-performance-metrics/7370/4 "2019-07-01T17:55:51Z")

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If you have your structures in a labelmap then you need to import them into a segmentation node (using Segmentations module) before using Segment Comparison.

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**Author:** ![safa](https://avatars.discourse-cdn.com/v4/letter/s/9fc348/32.png) [@safa](https://discourse.slicer.org/u/safa)\
**Post date:** [July 1, 2019, 6:51pm UTC](https://discourse.slicer.org/t/determine-performance-metrics/7370/5 "2019-07-01T18:51:08Z")

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ok thank you

how can I import a segmentation not a data that I’m going to segment manually?  
i have already a segmentation, i need to import it not as normal data but as segmentation data

 ![import](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/6/2/62e7a0e04ad10b7f1d030f41ebed48c421707e38.png)

I can’t import the file from there I click several times on import and it does not work

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**Author:** ![cpinter](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/cpinter/32/7995_2.png) [@cpinter](https://discourse.slicer.org/u/cpinter)\
**Post date:** [July 2, 2019, 12:06am UTC](https://discourse.slicer.org/t/determine-performance-metrics/7370/6 "2019-07-02T00:06:53Z")

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Darg&drop the file into Slicer. If it’s DICOM then select the DICOM option.

The Import button in your screenshot imports labelmaps or models already loaded into Slicer as segmentation.

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<div class="post-metadata">

**Author:** ![safa](https://avatars.discourse-cdn.com/v4/letter/s/9fc348/32.png) [@safa](https://discourse.slicer.org/u/safa)\
**Post date:** [July 2, 2019, 2:00pm UTC](https://discourse.slicer.org/t/determine-performance-metrics/7370/7 "2019-07-02T14:00:48Z")

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the segmentation images that I have are nifti type  
i just want to import and compare them  
and when I load the data, they are read as normal data, no segmentation  
so I can’t compare them