# Error with export rt dicom

**URL:** <https://discourse.slicer.org/t/error-with-export-rt-dicom/15457>\
**Category:** Support\
**Tags:** segmentation, dicom\
**Created:** [January 11, 2021, 3:37pm UTC](https://discourse.slicer.org/t/error-with-export-rt-dicom/15457 "2021-01-11T15:37:35Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![jeongsu](https://avatars.discourse-cdn.com/v4/letter/j/9de0a6/32.png) [@jeongsu](https://discourse.slicer.org/u/jeongsu)\
**Post date:** [January 11, 2021, 3:37pm UTC](https://discourse.slicer.org/t/error-with-export-rt-dicom/15457/1 "2021-01-11T15:37:36Z")

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hi, i`m js  
I want to get dicom files with my rt segmentation,  
data - Dicom export  
I did this procedure, but I got cracked files.  
How can I get solution about this error?  
please help me…  
thank you.

 ![KakaoTalk_20210111_233940503](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/8/2/82c3fcd19319b26b797956c456bf82f4fb890a23.jpeg)  
 ![KakaoTalk_20210111_232749527](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/c/5/c5d2c1975f5fb1f57d25165edda6033852f68153.jpeg)

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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:** [January 11, 2021, 4:33pm UTC](https://discourse.slicer.org/t/error-with-export-rt-dicom/15457/2 "2021-01-11T16:33:23Z")

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DICOM RT structure set is a legacy format for storing image segmentation for radiation therapy planning. It has several fundamental limitations (one of them that it is practically impossible to represent complex shapes with many internal holes) and so it is not suitable as a generic format for storing image segmentation.

If you need to save segmentation in DICOM then I would recommend to install QuantitativeReporting extension and export the segmentation as DICOM Segmentation Object.

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**Author:** ![jeongsu](https://avatars.discourse-cdn.com/v4/letter/j/9de0a6/32.png) [@jeongsu](https://discourse.slicer.org/u/jeongsu)\
**Post date:** [January 12, 2021, 4:05pm UTC](https://discourse.slicer.org/t/error-with-export-rt-dicom/15457/3 "2021-01-12T16:05:06Z")

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thank you for reply,  
I installed QuantitativeReporting extension, and made segmentation.  
I clicked the button named save report, complete report.  
But I found not any change on my computer.  
Where are my dicom files?  
How can I get dicom files with my segmentation and RT structure in dicom format…?

please help me,

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<div class="post-metadata">

**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:** [January 12, 2021, 4:51pm UTC](https://discourse.slicer.org/t/error-with-export-rt-dicom/15457/4 "2021-01-12T16:51:46Z")

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I would recommend to use latest Slicer Preview Release for DICOM export. We have made the GUI more clear.